| Commit message (Collapse) | Author | Age |
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It was observed that calling bpf_get_stackid() from a kprobe inside
slub or from spin_unlock causes similar deadlock as with hashmap,
therefore convert stackmap to use pre-allocated memory.
The call_rcu is no longer feasible mechanism, since delayed freeing
causes bpf_get_stackid() to fail unpredictably when number of actual
stacks is significantly less than user requested max_entries.
Since elements are no longer freed into slub, we can push elements into
freelist immediately and let them be recycled.
However the very unlikley race between user space map_lookup() and
program-side recycling is possible:
cpu0 cpu1
---- ----
user does lookup(stackidX)
starts copying ips into buffer
delete(stackidX)
calls bpf_get_stackid()
which recyles the element and
overwrites with new stack trace
To avoid user space seeing a partial stack trace consisting of two
merged stack traces, do bucket = xchg(, NULL); copy; xchg(,bucket);
to preserve consistent stack trace delivery to user space.
Now we can move memset(,0) of left-over element value from critical
path of bpf_get_stackid() into slow-path of user space lookup.
Also disallow lookup() from bpf program, since it's useless and
program shouldn't be messing with collected stack trace.
Note that similar race between user space lookup and kernel side updates
is also present in hashmap, but it's not a new race. bpf programs were
always allowed to modify hash and array map elements while user space
is copying them.
Fixes: d5a3b1f69186 ("bpf: introduce BPF_MAP_TYPE_STACK_TRACE")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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If kprobe is placed on spin_unlock then calling kmalloc/kfree from
bpf programs is not safe, since the following dead lock is possible:
kfree->spin_lock(kmem_cache_node->lock)...spin_unlock->kprobe->
bpf_prog->map_update->kmalloc->spin_lock(of the same kmem_cache_node->lock)
and deadlocks.
The following solutions were considered and some implemented, but
eventually discarded
- kmem_cache_create for every map
- add recursion check to slow-path of slub
- use reserved memory in bpf_map_update for in_irq or in preempt_disabled
- kmalloc via irq_work
At the end pre-allocation of all map elements turned out to be the simplest
solution and since the user is charged upfront for all the memory, such
pre-allocation doesn't affect the user space visible behavior.
Since it's impossible to tell whether kprobe is triggered in a safe
location from kmalloc point of view, use pre-allocation by default
and introduce new BPF_F_NO_PREALLOC flag.
While testing of per-cpu hash maps it was discovered
that alloc_percpu(GFP_ATOMIC) has odd corner cases and often
fails to allocate memory even when 90% of it is free.
The pre-allocation of per-cpu hash elements solves this problem as well.
Turned out that bpf_map_update() quickly followed by
bpf_map_lookup()+bpf_map_delete() is very common pattern used
in many of iovisor/bcc/tools, so there is additional benefit of
pre-allocation, since such use cases are must faster.
Since all hash map elements are now pre-allocated we can remove
atomic increment of htab->count and save few more cycles.
Also add bpf_map_precharge_memlock() to check rlimit_memlock early to avoid
large malloc/free done by users who don't have sufficient limits.
Pre-allocation is done with vmalloc and alloc/free is done
via percpu_freelist. Here are performance numbers for different
pre-allocation algorithms that were implemented, but discarded
in favor of percpu_freelist:
1 cpu:
pcpu_ida 2.1M
pcpu_ida nolock 2.3M
bt 2.4M
kmalloc 1.8M
hlist+spinlock 2.3M
pcpu_freelist 2.6M
4 cpu:
pcpu_ida 1.5M
pcpu_ida nolock 1.8M
bt w/smp_align 1.7M
bt no/smp_align 1.1M
kmalloc 0.7M
hlist+spinlock 0.2M
pcpu_freelist 2.0M
8 cpu:
pcpu_ida 0.7M
bt w/smp_align 0.8M
kmalloc 0.4M
pcpu_freelist 1.5M
32 cpu:
kmalloc 0.13M
pcpu_freelist 0.49M
pcpu_ida nolock is a modified percpu_ida algorithm without
percpu_ida_cpu locks and without cross-cpu tag stealing.
It's faster than existing percpu_ida, but not as fast as pcpu_freelist.
bt is a variant of block/blk-mq-tag.c simlified and customized
for bpf use case. bt w/smp_align is using cache line for every 'long'
(similar to blk-mq-tag). bt no/smp_align allocates 'long'
bitmasks continuously to save memory. It's comparable to percpu_ida
and in some cases faster, but slower than percpu_freelist
hlist+spinlock is the simplest free list with single spinlock.
As expeceted it has very bad scaling in SMP.
kmalloc is existing implementation which is still available via
BPF_F_NO_PREALLOC flag. It's significantly slower in single cpu and
in 8 cpu setup it's 3 times slower than pre-allocation with pcpu_freelist,
but saves memory, so in cases where map->max_entries can be large
and number of map update/delete per second is low, it may make
sense to use it.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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if kprobe is placed within update or delete hash map helpers
that hold bucket spin lock and triggered bpf program is trying to
grab the spinlock for the same bucket on the same cpu, it will
deadlock.
Fix it by extending existing recursion prevention mechanism.
Note, map_lookup and other tracing helpers don't have this problem,
since they don't hold any locks and don't modify global data.
bpf_trace_printk has its own recursive check and ok as well.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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Currently, when we pass a buffer from the eBPF stack into a helper
function, the function proto indicates argument types as ARG_PTR_TO_STACK
and ARG_CONST_STACK_SIZE pair. If R<X> contains the former, then R<X+1>
must be of the latter type. Then, verifier checks whether the buffer
points into eBPF stack, is initialized, etc. The verifier also guarantees
that the constant value passed in R<X+1> is greater than 0, so helper
functions don't need to test for it and can always assume a non-NULL
initialized buffer as well as non-0 buffer size.
This patch adds a new argument types ARG_CONST_STACK_SIZE_OR_ZERO that
allows to also pass NULL as R<X> and 0 as R<X+1> into the helper function.
Such helper functions, of course, need to be able to handle these cases
internally then. Verifier guarantees that either R<X> == NULL && R<X+1> == 0
or R<X> != NULL && R<X+1> != 0 (like the case of ARG_CONST_STACK_SIZE), any
other combinations are not possible to load.
I went through various options of extending the verifier, and introducing
the type ARG_CONST_STACK_SIZE_OR_ZERO seems to have most minimal changes
needed to the verifier.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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add new map type to store stack traces and corresponding helper
bpf_get_stackid(ctx, map, flags) - walk user or kernel stack and return id
@ctx: struct pt_regs*
@map: pointer to stack_trace map
@flags: bits 0-7 - numer of stack frames to skip
bit 8 - collect user stack instead of kernel
bit 9 - compare stacks by hash only
bit 10 - if two different stacks hash into the same stackid
discard old
other bits - reserved
Return: >= 0 stackid on success or negative error
stackid is a 32-bit integer handle that can be further combined with
other data (including other stackid) and used as a key into maps.
Userspace will access stackmap using standard lookup/delete syscall commands to
retrieve full stack trace for given stackid.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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Expose socket options for setting a classic or extended BPF program
for use when selecting sockets in an SO_REUSEPORT group. These options
can be used on the first socket to belong to a group before bind or
on any socket in the group after bind.
This change includes refactoring of the existing sk_filter code to
allow reuse of the existing BPF filter validation checks.
Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Change-Id: I4433dfd5d865bb69e8d3cab55cc68325829e8b49
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The functions bpf_map_lookup_elem(map, key, value) and
bpf_map_update_elem(map, key, value, flags) need to get/set
values from all-cpus for per-cpu hash and array maps,
so that user space can aggregate/update them as necessary.
Example of single counter aggregation in user space:
unsigned int nr_cpus = sysconf(_SC_NPROCESSORS_CONF);
long values[nr_cpus];
long value = 0;
bpf_lookup_elem(fd, key, values);
for (i = 0; i < nr_cpus; i++)
value += values[i];
The user space must provide round_up(value_size, 8) * nr_cpus
array to get/set values, since kernel will use 'long' copy
of per-cpu values to try to copy good counters atomically.
It's a best-effort, since bpf programs and user space are racing
to access the same memory.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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Primary use case is a histogram array of latency
where bpf program computes the latency of block requests or other
events and stores histogram of latency into array of 64 elements.
All cpus are constantly running, so normal increment is not accurate,
bpf_xadd causes cache ping-pong and this per-cpu approach allows
fastest collision-free counters.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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Robustify refcounting.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: vince@deater.net
Link: http://lkml.kernel.org/r/20160126045947.GA40151@ast-mbp.thefacebook.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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Currently, when having map file descriptors pointing to program arrays,
there's still the issue that we unconditionally flush program array
contents via bpf_fd_array_map_clear() in bpf_map_release(). This happens
when such a file descriptor is released and is independent of the map's
refcount.
Having this flush independent of the refcount is for a reason: there
can be arbitrary complex dependency chains among tail calls, also circular
ones (direct or indirect, nesting limit determined during runtime), and
we need to make sure that the map drops all references to eBPF programs
it holds, so that the map's refcount can eventually drop to zero and
initiate its freeing. Btw, a walk of the whole dependency graph would
not be possible for various reasons, one being complexity and another
one inconsistency, i.e. new programs can be added to parts of the graph
at any time, so there's no guaranteed consistent state for the time of
such a walk.
Now, the program array pinning itself works, but the issue is that each
derived file descriptor on close would nevertheless call unconditionally
into bpf_fd_array_map_clear(). Instead, keep track of users and postpone
this flush until the last reference to a user is dropped. As this only
concerns a subset of references (f.e. a prog array could hold a program
that itself has reference on the prog array holding it, etc), we need to
track them separately.
Short analysis on the refcounting: on map creation time usercnt will be
one, so there's no change in behaviour for bpf_map_release(), if unpinned.
If we already fail in map_create(), we are immediately freed, and no
file descriptor has been made public yet. In bpf_obj_pin_user(), we need
to probe for a possible map in bpf_fd_probe_obj() already with a usercnt
reference, so before we drop the reference on the fd with fdput().
Therefore, if actual pinning fails, we need to drop that reference again
in bpf_any_put(), otherwise we keep holding it. When last reference
drops on the inode, the bpf_any_put() in bpf_evict_inode() will take
care of dropping the usercnt again. In the bpf_obj_get_user() case, the
bpf_any_get() will grab a reference on the usercnt, still at a time when
we have the reference on the path. Should we later on fail to grab a new
file descriptor, bpf_any_put() will drop it, otherwise we hold it until
bpf_map_release() time.
Joint work with Alexei.
Fixes: b2197755b263 ("bpf: add support for persistent maps/progs")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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This reverts commit c9da161c6517ba12154059d3b965c2cbaf16f90f.
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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This reverts commit 3899251bdb9c2b31fc73d4cc132f52d3710101de.
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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This reverts commit 087a92287dbae61b4ee1e76d7c20c81710109422.
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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This reverts commit 9a7fad4c0e215fb1c256fee27c45f9f8bc4364c5.
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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This reverts commit 96d9b2338bed553c37f759127d8d18c857449ceb.
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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This reverts commit e25dc63aa366fd0f61d1d9ba67b66f5d75fc4372.
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
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lineage-18.1-caf-msm8998
* google/common/android-4.4-p:
Linux 4.4.302
Input: i8042 - Fix misplaced backport of "add ASUS Zenbook Flip to noselftest list"
KVM: x86: Fix misplaced backport of "work around leak of uninitialized stack contents"
Revert "tc358743: fix register i2c_rd/wr function fix"
Revert "drm/radeon/ci: disable mclk switching for high refresh rates (v2)"
Bluetooth: MGMT: Fix misplaced BT_HS check
ipv4: tcp: send zero IPID in SYNACK messages
ipv4: raw: lock the socket in raw_bind()
hwmon: (lm90) Reduce maximum conversion rate for G781
drm/msm: Fix wrong size calculation
net-procfs: show net devices bound packet types
ipv4: avoid using shared IP generator for connected sockets
net: fix information leakage in /proc/net/ptype
ipv6_tunnel: Rate limit warning messages
scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
USB: core: Fix hang in usb_kill_urb by adding memory barriers
usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge
tty: Add support for Brainboxes UC cards.
tty: n_gsm: fix SW flow control encoding/handling
serial: stm32: fix software flow control transfer
PM: wakeup: simplify the output logic of pm_show_wakelocks()
udf: Fix NULL ptr deref when converting from inline format
udf: Restore i_lenAlloc when inode expansion fails
scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices
s390/hypfs: include z/VM guests with access control group set
Bluetooth: refactor malicious adv data check
can: bcm: fix UAF of bcm op
Linux 4.4.301
drm/i915: Flush TLBs before releasing backing store
Linux 4.4.300
lib82596: Fix IRQ check in sni_82596_probe
bcmgenet: add WOL IRQ check
net_sched: restore "mpu xxx" handling
dmaengine: at_xdmac: Fix at_xdmac_lld struct definition
dmaengine: at_xdmac: Fix lld view setting
dmaengine: at_xdmac: Print debug message after realeasing the lock
dmaengine: at_xdmac: Don't start transactions at tx_submit level
netns: add schedule point in ops_exit_list()
net: axienet: fix number of TX ring slots for available check
net: axienet: Wait for PhyRstCmplt after core reset
af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress
parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries
net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module
powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses
ext4: don't use the orphan list when migrating an inode
ext4: Fix BUG_ON in ext4_bread when write quota data
ext4: set csum seed in tmp inode while migrating to extents
ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers
power: bq25890: Enable continuous conversion for ADC at charging
scsi: sr: Don't use GFP_DMA
MIPS: Octeon: Fix build errors using clang
i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters
ALSA: seq: Set upper limit of processed events
w1: Misuse of get_user()/put_user() reported by sparse
i2c: mpc: Correct I2C reset procedure
powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING
i2c: i801: Don't silently correct invalid transfer size
powerpc/btext: add missing of_node_put
powerpc/cell: add missing of_node_put
powerpc/powernv: add missing of_node_put
powerpc/6xx: add missing of_node_put
parisc: Avoid calling faulthandler_disabled() twice
serial: core: Keep mctrl register state and cached copy in sync
serial: pl010: Drop CR register reset on set_termios
dm space map common: add bounds check to sm_ll_lookup_bitmap()
dm btree: add a defensive bounds check to insert_at()
net: mdio: Demote probed message to debug print
btrfs: remove BUG_ON(!eie) in find_parent_nodes
btrfs: remove BUG_ON() in find_parent_nodes()
ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R()
ACPICA: Utilities: Avoid deleting the same object twice in a row
um: registers: Rename function names to avoid conflicts and build problems
ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream
usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0
media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach()
media: igorplugusb: receiver overflow should be reported
net: bonding: debug: avoid printing debug logs when bond is not notifying peers
iwlwifi: mvm: synchronize with FW after multicast commands
media: m920x: don't use stack on USB reads
media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach()
floppy: Add max size check for user space request
mwifiex: Fix skb_over_panic in mwifiex_usb_recv()
HSI: core: Fix return freed object in hsi_new_client
media: b2c2: Add missing check in flexcop_pci_isr:
usb: gadget: f_fs: Use stream_open() for endpoint files
ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply
fs: dlm: filter user dlm messages for kernel locks
Bluetooth: Fix debugfs entry leak in hci_register_dev()
RDMA/cxgb4: Set queue pair state when being queried
mips: bcm63xx: add support for clk_set_parent()
mips: lantiq: add support for clk_set_parent()
misc: lattice-ecp3-config: Fix task hung when firmware load failed
ASoC: samsung: idma: Check of ioremap return value
dmaengine: pxa/mmp: stop referencing config->slave_id
RDMA/core: Let ib_find_gid() continue search even after empty entry
char/mwave: Adjust io port register size
ALSA: oss: fix compile error when OSS_DEBUG is enabled
powerpc/prom_init: Fix improper check of prom_getprop()
ALSA: hda: Add missing rwsem around snd_ctl_remove() calls
ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls
ALSA: jack: Add missing rwsem around snd_ctl_remove() calls
ext4: avoid trim error on fs with small groups
net: mcs7830: handle usb read errors properly
pcmcia: fix setting of kthread task states
can: xilinx_can: xcan_probe(): check for error irq
can: softing: softing_startstop(): fix set but not used variable warning
spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe
ppp: ensure minimum packet size in ppp_write()
pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region()
pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region()
usb: ftdi-elan: fix memory leak on device disconnect
media: msi001: fix possible null-ptr-deref in msi001_probe()
media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach()
media: dib8000: Fix a memleak in dib8000_init()
floppy: Fix hang in watchdog when disk is ejected
serial: amba-pl011: do not request memory region twice
drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode()
arm64: dts: qcom: msm8916: fix MMC controller aliases
netfilter: bridge: add support for pppoe filtering
tty: serial: atmel: Call dma_async_issue_pending()
tty: serial: atmel: Check return code of dmaengine_submit()
crypto: qce - fix uaf on qce_ahash_register_one
Bluetooth: stop proccessing malicious adv data
Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
can: softing_cs: softingcs_probe(): fix memleak on registration failure
media: stk1160: fix control-message timeouts
media: pvrusb2: fix control-message timeouts
media: dib0700: fix undefined behavior in tuner shutdown
media: em28xx: fix control-message timeouts
media: mceusb: fix control-message timeouts
rtc: cmos: take rtc_lock while reading from CMOS
nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
HID: uhid: Fix worker destroying device without any protection
rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled
media: uvcvideo: fix division by zero at stream start
drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk()
can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved}
can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data
mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe()
USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status
USB: core: Fix bug in resuming hub's handling of wakeup requests
Bluetooth: bfusb: fix division by zero in send path
Linux 4.4.299
power: reset: ltc2952: Fix use of floating point literals
mISDN: change function names to avoid conflicts
net: udp: fix alignment problem in udp4_seq_show()
ip6_vti: initialize __ip6_tnl_parm struct in vti6_siocdevprivate
scsi: libiscsi: Fix UAF in iscsi_conn_get_param()/iscsi_conn_teardown()
phonet: refcount leak in pep_sock_accep
rndis_host: support Hytera digital radios
xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate
sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc
i40e: Fix incorrect netdev's real number of RX/TX queues
mac80211: initialize variable have_higher_than_11mbit
ieee802154: atusb: fix uninit value in atusb_set_extended_addr
Bluetooth: btusb: Apply QCA Rome patches for some ATH3012 models
bpf, test: fix ld_abs + vlan push/pop stress test
Linux 4.4.298
net: fix use-after-free in tw_timer_handler
Input: spaceball - fix parsing of movement data packets
Input: appletouch - initialize work before device registration
scsi: vmw_pvscsi: Set residual data length conditionally
usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.
xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set.
uapi: fix linux/nfc.h userspace compilation errors
nfc: uapi: use kernel size_t to fix user-space builds
selinux: initialize proto variable in selinux_ip_postroute_compat()
recordmcount.pl: fix typo in s390 mcount regex
platform/x86: apple-gmux: use resource_size() with res
Linux 4.4.297
phonet/pep: refuse to enable an unbound pipe
hamradio: improve the incomplete fix to avoid NPD
hamradio: defer ax25 kfree after unregister_netdev
ax25: NPD bug when detaching AX25 device
xen/blkfront: fix bug in backported patch
ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling
ALSA: drivers: opl3: Fix incorrect use of vp->state
ALSA: jack: Check the return value of kstrdup()
hwmon: (lm90) Fix usage of CONFIG2 register in detect function
drivers: net: smc911x: Check for error irq
bonding: fix ad_actor_system option setting to default
qlcnic: potential dereference null pointer of rx_queue->page_ring
IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
HID: holtek: fix mouse probing
can: kvaser_usb: get CAN clock frequency from device
net: usb: lan78xx: add Allied Telesis AT29M2-AF
Conflicts:
drivers/usb/gadget/function/f_fs.c
Change-Id: Iabc390c3c9160c7a2864ffe1125d73412ffdb31d
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Changes in 4.4.302
can: bcm: fix UAF of bcm op
Bluetooth: refactor malicious adv data check
s390/hypfs: include z/VM guests with access control group set
scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices
udf: Restore i_lenAlloc when inode expansion fails
udf: Fix NULL ptr deref when converting from inline format
PM: wakeup: simplify the output logic of pm_show_wakelocks()
serial: stm32: fix software flow control transfer
tty: n_gsm: fix SW flow control encoding/handling
tty: Add support for Brainboxes UC cards.
usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge
USB: core: Fix hang in usb_kill_urb by adding memory barriers
scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
ipv6_tunnel: Rate limit warning messages
net: fix information leakage in /proc/net/ptype
ipv4: avoid using shared IP generator for connected sockets
net-procfs: show net devices bound packet types
drm/msm: Fix wrong size calculation
hwmon: (lm90) Reduce maximum conversion rate for G781
ipv4: raw: lock the socket in raw_bind()
ipv4: tcp: send zero IPID in SYNACK messages
Bluetooth: MGMT: Fix misplaced BT_HS check
Revert "drm/radeon/ci: disable mclk switching for high refresh rates (v2)"
Revert "tc358743: fix register i2c_rd/wr function fix"
KVM: x86: Fix misplaced backport of "work around leak of uninitialized stack contents"
Input: i8042 - Fix misplaced backport of "add ASUS Zenbook Flip to noselftest list"
Linux 4.4.302
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5191d3cb4df0fa8de60170d2fedf4a3c51380fdf
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commit 47934e06b65637c88a762d9c98329ae6e3238888 upstream.
In one net namespace, after creating a packet socket without binding
it to a device, users in other net namespaces can observe the new
`packet_type` added by this packet socket by reading `/proc/net/ptype`
file. This is minor information leakage as packet socket is
namespace aware.
Add a net pointer in `packet_type` to keep the net namespace of
of corresponding packet socket. In `ptype_seq_show`, this net pointer
must be checked when it is not NULL.
Fixes: 2feb27dbe00c ("[NETNS]: Minor information leak via /proc/net/ptype file.")
Signed-off-by: Congyu Liu <liu3101@purdue.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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lineage-18.1-caf-msm8998
* common/android-4.4-p:
Linux 4.4.296
xen/netback: don't queue unlimited number of packages
xen/console: harden hvc_xen against event channel storms
xen/netfront: harden netfront against event channel storms
xen/blkfront: harden blkfront against event channel storms
Input: touchscreen - avoid bitwise vs logical OR warning
ARM: 8805/2: remove unneeded naked function usage
net: lan78xx: Avoid unnecessary self assignment
net: systemport: Add global locking for descriptor lifecycle
timekeeping: Really make sure wall_to_monotonic isn't positive
USB: serial: option: add Telit FN990 compositions
PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error
USB: gadget: bRequestType is a bitfield, not a enum
igbvf: fix double free in `igbvf_probe`
soc/tegra: fuse: Fix bitwise vs. logical OR warning
nfsd: fix use-after-free due to delegation race
dm btree remove: fix use after free in rebalance_children()
recordmcount.pl: look for jgnop instruction as well as bcrl on s390
mac80211: send ADDBA requests using the tid/queue of the aggregation session
hwmon: (dell-smm) Fix warning on /proc/i8k creation error
net: netlink: af_netlink: Prevent empty skb by adding a check on len.
i2c: rk3x: Handle a spurious start completion interrupt flag
parisc/agp: Annotate parisc agp init functions with __init
nfc: fix segfault in nfc_genl_dump_devices_done
FROMGIT: USB: gadget: bRequestType is a bitfield, not a enum
Linux 4.4.295
irqchip: nvic: Fix offset for Interrupt Priority Offsets
irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove
iio: itg3200: Call iio_trigger_notify_done() on error
iio: ltr501: Don't return error code in trigger handler
iio: mma8452: Fix trigger reference couting
iio: stk3310: Don't return error code in interrupt handler
usb: core: config: fix validation of wMaxPacketValue entries
USB: gadget: zero allocate endpoint 0 buffers
USB: gadget: detect too-big endpoint 0 requests
net/qla3xxx: fix an error code in ql_adapter_up()
net, neigh: clear whole pneigh_entry at alloc time
net: fec: only clear interrupt of handling queue in fec_enet_rx_queue()
net: altera: set a couple error code in probe()
net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero
block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
tracefs: Set all files to the same group ownership as the mount option
signalfd: use wake_up_pollfree()
binder: use wake_up_pollfree()
wait: add wake_up_pollfree()
libata: add horkage for ASMedia 1092
can: pch_can: pch_can_rx_normal: fix use after free
tracefs: Have new files inherit the ownership of their parent
ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
ALSA: pcm: oss: Limit the period size to 16MB
ALSA: pcm: oss: Fix negative period/buffer sizes
ALSA: ctl: Fix copy of updated id with element read/write
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
can: sja1000: fix use after free in ems_pcmcia_add_card()
HID: check for valid USB device for many HID drivers
HID: wacom: fix problems when device is not a valid USB device
HID: add USB_HID dependancy on some USB HID drivers
HID: add USB_HID dependancy to hid-chicony
HID: add USB_HID dependancy to hid-prodikeys
HID: add hid_is_usb() function to make it simpler for USB detection
HID: introduce hid_is_using_ll_driver
UPSTREAM: USB: gadget: zero allocate endpoint 0 buffers
UPSTREAM: USB: gadget: detect too-big endpoint 0 requests
Linux 4.4.294
serial: pl011: Add ACPI SBSA UART match id
tty: serial: msm_serial: Deactivate RX DMA for polling support
vgacon: Propagate console boot parameters before calling `vc_resize'
parisc: Fix "make install" on newer debian releases
siphash: use _unaligned version by default
net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
natsemi: xtensa: fix section mismatch warnings
fget: check that the fd still exists after getting a ref to it
fs: add fget_many() and fput_many()
sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
kprobes: Limit max data_size of the kretprobe instances
net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
scsi: iscsi: Unblock session then wake up error handler
s390/setup: avoid using memblock_enforce_memory_limit
platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
net: return correct error code
hugetlb: take PMD sharing into account when flushing tlb/caches
tty: hvc: replace BUG_ON() with negative return value
xen/netfront: don't trust the backend response data blindly
xen/netfront: disentangle tx_skb_freelist
xen/netfront: don't read data from request on the ring page
xen/netfront: read response from backend only once
xen/blkfront: don't trust the backend response data blindly
xen/blkfront: don't take local copy of a request from the ring page
xen/blkfront: read response from backend only once
xen: sync include/xen/interface/io/ring.h with Xen's newest version
shm: extend forced shm destroy to support objects from several IPC nses
fuse: release pipe buf after last use
fuse: fix page stealing
NFC: add NCI_UNREG flag to eliminate the race
proc/vmcore: fix clearing user buffer by properly using clear_user()
hugetlbfs: flush TLBs correctly after huge_pmd_unshare
tracing: Check pid filtering when creating events
tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
scsi: mpt3sas: Fix kernel panic during drive powercycle test
ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE
NFSv42: Don't fail clone() unless the OP_CLONE operation failed
net: ieee802154: handle iftypes as u32
ASoC: topology: Add missing rwsem around snd_ctl_remove() calls
ARM: dts: BCM5301X: Add interrupt properties to GPIO node
xen: detect uninitialized xenbus in xenbus_init
xen: don't continue xenstore initialization in case of errors
staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
ALSA: ctxfi: Fix out-of-range access
binder: fix test regression due to sender_euid change
usb: hub: Fix locking issues with address0_mutex
usb: hub: Fix usb enumeration issue due to address0 race
USB: serial: option: add Fibocom FM101-GL variants
USB: serial: option: add Telit LE910S1 0x9200 composition
staging: ion: Prevent incorrect reference counting behavour
Change-Id: Iadf9f213915d2a02b27ceb3b2144eac827ade329
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Changes in 4.4.295
HID: introduce hid_is_using_ll_driver
HID: add hid_is_usb() function to make it simpler for USB detection
HID: add USB_HID dependancy to hid-prodikeys
HID: add USB_HID dependancy to hid-chicony
HID: add USB_HID dependancy on some USB HID drivers
HID: wacom: fix problems when device is not a valid USB device
HID: check for valid USB device for many HID drivers
can: sja1000: fix use after free in ems_pcmcia_add_card()
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
ALSA: ctl: Fix copy of updated id with element read/write
ALSA: pcm: oss: Fix negative period/buffer sizes
ALSA: pcm: oss: Limit the period size to 16MB
ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
tracefs: Have new files inherit the ownership of their parent
can: pch_can: pch_can_rx_normal: fix use after free
libata: add horkage for ASMedia 1092
wait: add wake_up_pollfree()
binder: use wake_up_pollfree()
signalfd: use wake_up_pollfree()
tracefs: Set all files to the same group ownership as the mount option
block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero
net: altera: set a couple error code in probe()
net: fec: only clear interrupt of handling queue in fec_enet_rx_queue()
net, neigh: clear whole pneigh_entry at alloc time
net/qla3xxx: fix an error code in ql_adapter_up()
USB: gadget: detect too-big endpoint 0 requests
USB: gadget: zero allocate endpoint 0 buffers
usb: core: config: fix validation of wMaxPacketValue entries
iio: stk3310: Don't return error code in interrupt handler
iio: mma8452: Fix trigger reference couting
iio: ltr501: Don't return error code in trigger handler
iio: itg3200: Call iio_trigger_notify_done() on error
iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove
irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
irqchip: nvic: Fix offset for Interrupt Priority Offsets
Linux 4.4.295
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4810f7e2ebd538739fb0d62f9eade0921a9badfb
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commit 42288cb44c4b5fff7653bc392b583a2b8bd6a8c0 upstream.
Several ->poll() implementations are special in that they use a
waitqueue whose lifetime is the current task, rather than the struct
file as is normally the case. This is okay for blocking polls, since a
blocking poll occurs within one task; however, non-blocking polls
require another solution. This solution is for the queue to be cleared
before it is freed, using 'wake_up_poll(wq, EPOLLHUP | POLLFREE);'.
However, that has a bug: wake_up_poll() calls __wake_up() with
nr_exclusive=1. Therefore, if there are multiple "exclusive" waiters,
and the wakeup function for the first one returns a positive value, only
that one will be called. That's *not* what's needed for POLLFREE;
POLLFREE is special in that it really needs to wake up everyone.
Considering the three non-blocking poll systems:
- io_uring poll doesn't handle POLLFREE at all, so it is broken anyway.
- aio poll is unaffected, since it doesn't support exclusive waits.
However, that's fragile, as someone could add this feature later.
- epoll doesn't appear to be broken by this, since its wakeup function
returns 0 when it sees POLLFREE. But this is fragile.
Although there is a workaround (see epoll), it's better to define a
function which always sends POLLFREE to all waiters. Add such a
function. Also make it verify that the queue really becomes empty after
all waiters have been woken up.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211209010455.42744-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f83baa0cb6cfc92ebaf7f9d3a99d7e34f2e77a8a upstream.
A number of HID drivers already call hid_is_using_ll_driver() but only
for the detection of if this is a USB device or not. Make this more
obvious by creating hid_is_usb() and calling the function that way.
Also converts the existing hid_is_using_ll_driver() functions to use the
new call.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fc2237a724a9e448599076d7d23497f51e2f7441 upstream.
Although HID itself is transport-agnostic, occasionally a driver may
want to interact with the low-level transport that a device is connected
through. To do this, we need to know what kind of bus is in use. The
first guess may be to look at the 'bus' field of the 'struct hid_device',
but this field may be emulated in some cases (e.g. uhid).
More ideally, we can check which ll_driver a device is using. This
function introduces a 'hid_is_using_ll_driver' function and makes the
'struct hid_ll_driver' of the four most common transports accessible
through hid.h.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Acked-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.294
staging: ion: Prevent incorrect reference counting behavour
USB: serial: option: add Telit LE910S1 0x9200 composition
USB: serial: option: add Fibocom FM101-GL variants
usb: hub: Fix usb enumeration issue due to address0 race
usb: hub: Fix locking issues with address0_mutex
binder: fix test regression due to sender_euid change
ALSA: ctxfi: Fix out-of-range access
staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
xen: don't continue xenstore initialization in case of errors
xen: detect uninitialized xenbus in xenbus_init
ARM: dts: BCM5301X: Add interrupt properties to GPIO node
ASoC: topology: Add missing rwsem around snd_ctl_remove() calls
net: ieee802154: handle iftypes as u32
NFSv42: Don't fail clone() unless the OP_CLONE operation failed
ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE
scsi: mpt3sas: Fix kernel panic during drive powercycle test
tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
tracing: Check pid filtering when creating events
hugetlbfs: flush TLBs correctly after huge_pmd_unshare
proc/vmcore: fix clearing user buffer by properly using clear_user()
NFC: add NCI_UNREG flag to eliminate the race
fuse: fix page stealing
fuse: release pipe buf after last use
shm: extend forced shm destroy to support objects from several IPC nses
xen: sync include/xen/interface/io/ring.h with Xen's newest version
xen/blkfront: read response from backend only once
xen/blkfront: don't take local copy of a request from the ring page
xen/blkfront: don't trust the backend response data blindly
xen/netfront: read response from backend only once
xen/netfront: don't read data from request on the ring page
xen/netfront: disentangle tx_skb_freelist
xen/netfront: don't trust the backend response data blindly
tty: hvc: replace BUG_ON() with negative return value
hugetlb: take PMD sharing into account when flushing tlb/caches
net: return correct error code
platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
s390/setup: avoid using memblock_enforce_memory_limit
scsi: iscsi: Unblock session then wake up error handler
net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
kprobes: Limit max data_size of the kretprobe instances
sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
fs: add fget_many() and fput_many()
fget: check that the fd still exists after getting a ref to it
natsemi: xtensa: fix section mismatch warnings
net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
siphash: use _unaligned version by default
parisc: Fix "make install" on newer debian releases
vgacon: Propagate console boot parameters before calling `vc_resize'
tty: serial: msm_serial: Deactivate RX DMA for polling support
serial: pl011: Add ACPI SBSA UART match id
Linux 4.4.294
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id3cafc33da957a0501bcf61d000025167d552797
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commit f7e5b9bfa6c8820407b64eabc1f29c9a87e8993d upstream.
On ARM v6 and later, we define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
because the ordinary load/store instructions (ldr, ldrh, ldrb) can
tolerate any misalignment of the memory address. However, load/store
double and load/store multiple instructions (ldrd, ldm) may still only
be used on memory addresses that are 32-bit aligned, and so we have to
use the CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS macro with care, or we
may end up with a severe performance hit due to alignment traps that
require fixups by the kernel. Testing shows that this currently happens
with clang-13 but not gcc-11. In theory, any compiler version can
produce this bug or other problems, as we are dealing with undefined
behavior in C99 even on architectures that support this in hardware,
see also https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363.
Fortunately, the get_unaligned() accessors do the right thing: when
building for ARMv6 or later, the compiler will emit unaligned accesses
using the ordinary load/store instructions (but avoid the ones that
require 32-bit alignment). When building for older ARM, those accessors
will emit the appropriate sequence of ldrb/mov/orr instructions. And on
architectures that can truly tolerate any kind of misalignment, the
get_unaligned() accessors resolve to the leXX_to_cpup accessors that
operate on aligned addresses.
Since the compiler will in fact emit ldrd or ldm instructions when
building this code for ARM v6 or later, the solution is to use the
unaligned accessors unconditionally on architectures where this is
known to be fast. The _aligned version of the hash function is
however still needed to get the best performance on architectures
that cannot do any unaligned access in hardware.
This new version avoids the undefined behavior and should produce
the fastest hash on all architectures we support.
Link: https://lore.kernel.org/linux-arm-kernel/20181008211554.5355-4-ard.biesheuvel@linaro.org/
Link: https://lore.kernel.org/linux-crypto/CAK8P3a2KfmmGDbVHULWevB0hv71P2oi2ZCHEAqT=8dQfa0=cqQ@mail.gmail.com/
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: 2c956a60778c ("siphash: add cryptographically secure PRF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 091141a42e15fe47ada737f3996b317072afcefb upstream.
Some uses cases repeatedly get and put references to the same file, but
the only exposed interface is doing these one at the time. As each of
these entail an atomic inc or dec on a shared structure, that cost can
add up.
Add fget_many(), which works just like fget(), except it takes an
argument for how many references to get on the file. Ditto fput_many(),
which can drop an arbitrary number of references to a file.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6bbfa44116689469267f1a6e3d233b52114139d2 upstream.
The 'kprobe::data_size' is unsigned, thus it can not be negative. But if
user sets it enough big number (e.g. (size_t)-8), the result of 'data_size
+ sizeof(struct kretprobe_instance)' becomes smaller than sizeof(struct
kretprobe_instance) or zero. In result, the kretprobe_instance are
allocated without enough memory, and kretprobe accesses outside of
allocated memory.
To avoid this issue, introduce a max limitation of the
kretprobe::data_size. 4KB per instance should be OK.
Link: https://lkml.kernel.org/r/163836995040.432120.10322772773821182925.stgit@devnote2
Cc: stable@vger.kernel.org
Fixes: f47cd9b553aa ("kprobes: kretprobe user entry-handler")
Reported-by: zhangyue <zhangyue1@kylinos.cn>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 85b6d24646e4125c591639841169baa98a2da503 upstream.
Currently, the exit_shm() function not designed to work properly when
task->sysvshm.shm_clist holds shm objects from different IPC namespaces.
This is a real pain when sysctl kernel.shm_rmid_forced = 1, because it
leads to use-after-free (reproducer exists).
This is an attempt to fix the problem by extending exit_shm mechanism to
handle shm's destroy from several IPC ns'es.
To achieve that we do several things:
1. add a namespace (non-refcounted) pointer to the struct shmid_kernel
2. during new shm object creation (newseg()/shmget syscall) we
initialize this pointer by current task IPC ns
3. exit_shm() fully reworked such that it traverses over all shp's in
task->sysvshm.shm_clist and gets IPC namespace not from current task
as it was before but from shp's object itself, then call
shm_destroy(shp, ns).
Note: We need to be really careful here, because as it was said before
(1), our pointer to IPC ns non-refcnt'ed. To be on the safe side we
using special helper get_ipc_ns_not_zero() which allows to get IPC ns
refcounter only if IPC ns not in the "state of destruction".
Q/A
Q: Why can we access shp->ns memory using non-refcounted pointer?
A: Because shp object lifetime is always shorther than IPC namespace
lifetime, so, if we get shp object from the task->sysvshm.shm_clist
while holding task_lock(task) nobody can steal our namespace.
Q: Does this patch change semantics of unshare/setns/clone syscalls?
A: No. It's just fixes non-covered case when process may leave IPC
namespace without getting task->sysvshm.shm_clist list cleaned up.
Link: https://lkml.kernel.org/r/67bb03e5-f79c-1815-e2bf-949c67047418@colorfullife.com
Link: https://lkml.kernel.org/r/20211109151501.4921-1-manfred@colorfullife.com
Fixes: ab602f79915 ("shm: make exit_shm work proportional to task activity")
Co-developed-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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lineage-18.1-caf-msm8998
* common/android-4.4-p:
Linux 4.4.293
usb: max-3421: Use driver data instead of maintaining a list of bound devices
ASoC: DAPM: Cover regression by kctl change notification fix
batman-adv: Avoid WARN_ON timing related checks
batman-adv: Don't always reallocate the fragmentation skb head
batman-adv: Reserve needed_*room for fragments
batman-adv: Consider fragmentation for needed_headroom
batman-adv: set .owner to THIS_MODULE
batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh
batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN
batman-adv: Prevent duplicated softif_vlan entry
batman-adv: Fix multicast TT issues with bogus ROAM flags
batman-adv: Keep fragments equally sized
drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
drm/udl: fix control-message timeout
cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
parisc/sticon: fix reverse colors
btrfs: fix memory ordering between normal and ordered work functions
mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
hexagon: export raw I/O routines for modules
tun: fix bonding active backup with arp monitoring
NFC: reorder the logic in nfc_{un,}register_device
NFC: reorganize the functions in nci_request
platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
mips: bcm63xx: add support for clk_get_parent()
net: bnx2x: fix variable dereferenced before check
sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
sh: define __BIG_ENDIAN for math-emu
sh: fix kconfig unmet dependency warning for FRAME_POINTER
maple: fix wrong return value of maple_bus_init().
sh: check return code of request_irq
powerpc/dcr: Use cmplwi instead of 3-argument cmpli
ALSA: gus: fix null pointer dereference on pointer block
powerpc/5200: dts: fix memory node unit name
scsi: target: Fix alua_tg_pt_gps_count tracking
scsi: target: Fix ordered tag handling
MIPS: sni: Fix the build
tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
usb: host: ohci-tmio: check return value after calling platform_get_resource()
ARM: dts: omap: fix gpmc,mux-add-data type
scsi: advansys: Fix kernel pointer leak
usb: musb: tusb6010: check return value after calling platform_get_resource()
scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
net: batman-adv: fix error handling
PCI/MSI: Destroy sysfs before freeing entries
parisc/entry: fix trace test in syscall exit path
PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
ARM: 9156/1: drop cc-option fallbacks for architecture selection
USB: chipidea: fix interrupt deadlock
vsock: prevent unnecessary refcnt inc for nonblocking connect
nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
llc: fix out-of-bound array index in llc_sk_dev_hash()
bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
net: davinci_emac: Fix interrupt pacing disable
xen-pciback: Fix return in pm_ctrl_init()
scsi: qla2xxx: Turn off target reset during issue_lip
watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
m68k: set a default value for MEMORY_RESERVE
netfilter: nfnetlink_queue: fix OOB when mac header was cleared
dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
RDMA/mlx4: Return missed an error if device doesn't support steering
scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
power: supply: rt5033_battery: Change voltage values to µV
usb: gadget: hid: fix error code in do_config()
serial: 8250_dw: Drop wrong use of ACPI_PTR()
video: fbdev: chipsfb: use memset_io() instead of memset()
memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
JFS: fix memleak in jfs_mount
scsi: dc395: Fix error case unwinding
ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
crypto: pcrypt - Delay write to padata->info
libertas: Fix possible memory leak in probe and disconnect
libertas_tf: Fix possible memory leak in probe and disconnect
smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
mwifiex: Send DELBA requests according to spec
platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
drm/msm: uninitialized variable in msm_gem_import()
memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
memstick: avoid out-of-range warning
b43: fix a lower bounds test
b43legacy: fix a lower bounds test
crypto: qat - detect PFVF collision after ACK
ath9k: Fix potential interrupt storm on queue reset
cpuidle: Fix kobject memory leaks in error paths
media: si470x: Avoid card name truncation
media: dvb-usb: fix ununit-value in az6027_rc_query
parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
parisc: fix warning in flush_tlb_all
ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
ARM: clang: Do not rely on lr register for stacktrace
smackfs: use __GFP_NOFAIL for smk_cipso_doi()
iwlwifi: mvm: disable RX-diversity in powersave
PM: hibernate: Get block device exclusively in swsusp_check()
mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
lib/xz: Validate the value before assigning it to an enum variable
lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
memstick: r592: Fix a UAF bug when removing the driver
ACPI: battery: Accept charges over the design capacity as full
ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
tracefs: Have tracefs directories not set OTH permission bits by default
media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
ACPICA: Avoid evaluating methods too early during system resume
ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
media: mceusb: return without resubmitting URB in case of -EPROTO error.
media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
media: uvcvideo: Set capability in s_param
media: netup_unidvb: handle interrupt properly according to the firmware
media: mt9p031: Fix corrupted frame after restarting stream
x86: Increase exception stack sizes
smackfs: Fix use-after-free in netlbl_catmap_walk()
MIPS: lantiq: dma: reset correct number of channel
MIPS: lantiq: dma: add small delay after reset
platform/x86: wmi: do not fail if disabling fails
Bluetooth: fix use-after-free error in lock_sock_nested()
Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
USB: iowarrior: fix control-message timeouts
USB: serial: keyspan: fix memleak on probe errors
iio: dac: ad5446: Fix ad5622_write() return value
quota: correct error number in free_dqentry()
quota: check block number when reading the block in quota file
ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
ALSA: mixer: oss: Fix racy access to slots
power: supply: max17042_battery: use VFSOC for capacity when no rsns
power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
signal: Remove the bogus sigkill_pending in ptrace_stop
mwifiex: Read a PCI register after writing the TX ring write pointer
wcn36xx: Fix HT40 capability for 2Ghz band
PCI: Mark Atheros QCA6174 to avoid bus reset
ath6kl: fix control-message timeout
ath6kl: fix division by zero in send path
mwifiex: fix division by zero in fw download path
EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
hwmon: (pmbus/lm25066) Add offset coefficients
btrfs: fix lost error handling when replaying directory deletes
vmxnet3: do not stop tx queues after netif_device_detach()
spi: spl022: fix Microwire full duplex mode
xen/netfront: stop tx queues during live migration
mmc: winbond: don't build on M68K
hyperv/vmbus: include linux/bitops.h
x86/irq: Ensure PI wakeup handler is unregistered before module unload
ALSA: timer: Unconditionally unlink slave instances, too
ALSA: timer: Fix use-after-free problem
ALSA: synth: missing check for possible NULL after the call to kstrdup
ALSA: line6: fix control and interrupt message timeouts
ALSA: 6fire: fix control and bulk message timeouts
ALSA: ua101: fix division by zero at probe
media: ite-cir: IR receiver stop working after receive overflow
parisc: Fix ptrace check on syscall return
mmc: dw_mmc: Dont wait for DRTO on Write RSP error
ocfs2: fix data corruption on truncate
libata: fix read log timeout value
Input: i8042 - Add quirk for Fujitsu Lifebook T725
Input: elantench - fix misreporting trackpoint coordinates
xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
binder: use cred instead of task for selinux checks
binder: use euid from cred instead of using task
FROMGIT: binder: fix test regression due to sender_euid change
BACKPORT: binder: use cred instead of task for selinux checks
BACKPORT: binder: use euid from cred instead of using task
BACKPORT: ip_gre: add validation for csum_start
Linux 4.4.292
rsi: fix control-message timeout
staging: rtl8192u: fix control-message timeouts
staging: r8712u: fix control-message timeout
comedi: vmk80xx: fix bulk and interrupt message timeouts
comedi: vmk80xx: fix bulk-buffer overflow
comedi: vmk80xx: fix transfer-buffer overflows
staging: comedi: drivers: replace le16_to_cpu() with usb_endpoint_maxp()
comedi: ni_usb6501: fix NULL-deref in command paths
comedi: dt9812: fix DMA buffers on stack
isofs: Fix out of bound access for corrupted isofs image
usb: hso: fix error handling code of hso_create_net_device
printk/console: Allow to disable console output by using console="" or console=null
usb-storage: Add compatibility quirk flags for iODD 2531/2541
usb: gadget: Mark USB_FSL_QE broken on 64-bit
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
IB/qib: Use struct_size() helper
net: hso: register netdev later to avoid a race condition
ARM: 9120/1: Revert "amba: make use of -1 IRQs warn"
scsi: core: Put LLD module refcnt after SCSI device is released
Linux 4.4.291
sctp: add vtag check in sctp_sf_violation
sctp: use init_tag from inithdr for ABORT chunk
nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST
regmap: Fix possible double-free in regcache_rbtree_exit()
net: lan78xx: fix division by zero in send path
mmc: sdhci: Map more voltage level to SDHCI_POWER_330
mmc: dw_mmc: exynos: fix the finding clock sample value
mmc: vub300: fix control-message timeouts
Revert "net: mdiobus: Fix memory leak in __mdiobus_register"
nfc: port100: fix using -ERRNO as command type mask
ata: sata_mv: Fix the error handling of mv_chip_id()
usbnet: fix error return code in usbnet_probe()
usbnet: sanity check for maxpacket
ARM: 8819/1: Remove '-p' from LDFLAGS
ARM: 9139/1: kprobes: fix arch_init_kprobes() prototype
ARM: 9134/1: remove duplicate memcpy() definition
ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned
Linux 4.4.290
ARM: 9122/1: select HAVE_FUTEX_CMPXCHG
tracing: Have all levels of checks prevent recursion
net: mdiobus: Fix memory leak in __mdiobus_register
ALSA: hda: avoid write to STATESTS if controller is in reset
platform/x86: intel_scu_ipc: Update timeout value in comment
isdn: mISDN: Fix sleeping function called from invalid context
ARM: dts: spear3xx: Fix gmac node
netfilter: Kconfig: use 'default y' instead of 'm' for bool config option
isdn: cpai: check ctr->cnr to avoid array index out of bound
nfc: nci: fix the UAF of rf_conn_info object
ovl: fix missing negative dentry check in ovl_rename()
ASoC: DAPM: Fix missing kctl change notifications
ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset
elfcore: correct reference to CONFIG_UML
ocfs2: mount fails with buffer overflow in strlen
can: peak_pci: peak_pci_remove(): fix UAF
can: peak_usb: pcan_usb_fd_decode_status(): fix back to ERROR_ACTIVE state notification
can: rcar_can: fix suspend/resume
NIOS2: irqflags: rename a redefined register name
netfilter: ipvs: make global sysctl readonly in non-init netns
NFSD: Keep existing listeners on portlist error
r8152: select CRC32 and CRYPTO/CRYPTO_HASH/CRYPTO_SHA256
drm/msm: Fix null pointer dereference on pointer edp
pata_legacy: fix a couple uninitialized variable bugs
NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()
nfc: fix error handling of nfc_proto_register()
ethernet: s2io: fix setting mac address during resume
net: encx24j600: check error in devm_regmap_init_encx24j600
net: korina: select CRC32
net: arc: select CRC32
iio: ssp_sensors: fix error code in ssp_print_mcu_debug()
iio: ssp_sensors: add more range checking in ssp_parse_dataframe()
iio: adc128s052: Fix the error handling path of 'adc128_probe()'
nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells
USB: serial: option: add Telit LE910Cx composition 0x1204
USB: serial: qcserial: add EM9191 QDL support
Input: xpad - add support for another USB ID of Nacon GC-100
efi/cper: use stack buffer for error record decoding
cb710: avoid NULL pointer subtraction
xhci: Enable trust tx length quirk for Fresco FL11 USB controller
s390: fix strrchr() implementation
ALSA: seq: Fix a potential UAF by wrong private_free call order
Conflicts:
drivers/gpu/drm/msm/msm_gem.c
net/bluetooth/l2cap_sock.c
Change-Id: Ia008e8ba419fa5604b5780265564ba80d05fbafa
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Changes in 4.4.293
binder: use euid from cred instead of using task
binder: use cred instead of task for selinux checks
xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
Input: elantench - fix misreporting trackpoint coordinates
Input: i8042 - Add quirk for Fujitsu Lifebook T725
libata: fix read log timeout value
ocfs2: fix data corruption on truncate
mmc: dw_mmc: Dont wait for DRTO on Write RSP error
parisc: Fix ptrace check on syscall return
media: ite-cir: IR receiver stop working after receive overflow
ALSA: ua101: fix division by zero at probe
ALSA: 6fire: fix control and bulk message timeouts
ALSA: line6: fix control and interrupt message timeouts
ALSA: synth: missing check for possible NULL after the call to kstrdup
ALSA: timer: Fix use-after-free problem
ALSA: timer: Unconditionally unlink slave instances, too
x86/irq: Ensure PI wakeup handler is unregistered before module unload
hyperv/vmbus: include linux/bitops.h
mmc: winbond: don't build on M68K
xen/netfront: stop tx queues during live migration
spi: spl022: fix Microwire full duplex mode
vmxnet3: do not stop tx queues after netif_device_detach()
btrfs: fix lost error handling when replaying directory deletes
hwmon: (pmbus/lm25066) Add offset coefficients
EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
mwifiex: fix division by zero in fw download path
ath6kl: fix division by zero in send path
ath6kl: fix control-message timeout
PCI: Mark Atheros QCA6174 to avoid bus reset
wcn36xx: Fix HT40 capability for 2Ghz band
mwifiex: Read a PCI register after writing the TX ring write pointer
signal: Remove the bogus sigkill_pending in ptrace_stop
power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
power: supply: max17042_battery: use VFSOC for capacity when no rsns
ALSA: mixer: oss: Fix racy access to slots
ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
quota: check block number when reading the block in quota file
quota: correct error number in free_dqentry()
iio: dac: ad5446: Fix ad5622_write() return value
USB: serial: keyspan: fix memleak on probe errors
USB: iowarrior: fix control-message timeouts
Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
Bluetooth: fix use-after-free error in lock_sock_nested()
platform/x86: wmi: do not fail if disabling fails
MIPS: lantiq: dma: add small delay after reset
MIPS: lantiq: dma: reset correct number of channel
smackfs: Fix use-after-free in netlbl_catmap_walk()
x86: Increase exception stack sizes
media: mt9p031: Fix corrupted frame after restarting stream
media: netup_unidvb: handle interrupt properly according to the firmware
media: uvcvideo: Set capability in s_param
media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
media: mceusb: return without resubmitting URB in case of -EPROTO error.
ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
ACPICA: Avoid evaluating methods too early during system resume
media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
tracefs: Have tracefs directories not set OTH permission bits by default
ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
ACPI: battery: Accept charges over the design capacity as full
memstick: r592: Fix a UAF bug when removing the driver
lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
lib/xz: Validate the value before assigning it to an enum variable
mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
PM: hibernate: Get block device exclusively in swsusp_check()
iwlwifi: mvm: disable RX-diversity in powersave
smackfs: use __GFP_NOFAIL for smk_cipso_doi()
ARM: clang: Do not rely on lr register for stacktrace
ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
parisc: fix warning in flush_tlb_all
parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
media: dvb-usb: fix ununit-value in az6027_rc_query
media: si470x: Avoid card name truncation
cpuidle: Fix kobject memory leaks in error paths
ath9k: Fix potential interrupt storm on queue reset
crypto: qat - detect PFVF collision after ACK
b43legacy: fix a lower bounds test
b43: fix a lower bounds test
memstick: avoid out-of-range warning
memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
drm/msm: uninitialized variable in msm_gem_import()
net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
mwifiex: Send DELBA requests according to spec
smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
libertas_tf: Fix possible memory leak in probe and disconnect
libertas: Fix possible memory leak in probe and disconnect
crypto: pcrypt - Delay write to padata->info
ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
scsi: dc395: Fix error case unwinding
JFS: fix memleak in jfs_mount
memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
video: fbdev: chipsfb: use memset_io() instead of memset()
serial: 8250_dw: Drop wrong use of ACPI_PTR()
usb: gadget: hid: fix error code in do_config()
power: supply: rt5033_battery: Change voltage values to µV
scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
RDMA/mlx4: Return missed an error if device doesn't support steering
dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
netfilter: nfnetlink_queue: fix OOB when mac header was cleared
m68k: set a default value for MEMORY_RESERVE
watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
scsi: qla2xxx: Turn off target reset during issue_lip
xen-pciback: Fix return in pm_ctrl_init()
net: davinci_emac: Fix interrupt pacing disable
bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
llc: fix out-of-bound array index in llc_sk_dev_hash()
nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
vsock: prevent unnecessary refcnt inc for nonblocking connect
USB: chipidea: fix interrupt deadlock
ARM: 9156/1: drop cc-option fallbacks for architecture selection
mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
parisc/entry: fix trace test in syscall exit path
PCI/MSI: Destroy sysfs before freeing entries
net: batman-adv: fix error handling
scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
usb: musb: tusb6010: check return value after calling platform_get_resource()
scsi: advansys: Fix kernel pointer leak
ARM: dts: omap: fix gpmc,mux-add-data type
usb: host: ohci-tmio: check return value after calling platform_get_resource()
tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
MIPS: sni: Fix the build
scsi: target: Fix ordered tag handling
scsi: target: Fix alua_tg_pt_gps_count tracking
powerpc/5200: dts: fix memory node unit name
ALSA: gus: fix null pointer dereference on pointer block
powerpc/dcr: Use cmplwi instead of 3-argument cmpli
sh: check return code of request_irq
maple: fix wrong return value of maple_bus_init().
sh: fix kconfig unmet dependency warning for FRAME_POINTER
sh: define __BIG_ENDIAN for math-emu
mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
net: bnx2x: fix variable dereferenced before check
mips: bcm63xx: add support for clk_get_parent()
platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
NFC: reorganize the functions in nci_request
NFC: reorder the logic in nfc_{un,}register_device
tun: fix bonding active backup with arp monitoring
hexagon: export raw I/O routines for modules
mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
btrfs: fix memory ordering between normal and ordered work functions
parisc/sticon: fix reverse colors
cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
drm/udl: fix control-message timeout
drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
batman-adv: Keep fragments equally sized
batman-adv: Fix multicast TT issues with bogus ROAM flags
batman-adv: Prevent duplicated softif_vlan entry
batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN
batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh
batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
batman-adv: set .owner to THIS_MODULE
batman-adv: Consider fragmentation for needed_headroom
batman-adv: Reserve needed_*room for fragments
batman-adv: Don't always reallocate the fragmentation skb head
batman-adv: Avoid WARN_ON timing related checks
ASoC: DAPM: Cover regression by kctl change notification fix
usb: max-3421: Use driver data instead of maintaining a list of bound devices
Linux 4.4.293
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I233cfa7b0fe613afd388fcc316caf184005eaee9
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commit 68dbbe7d5b4fde736d104cbbc9a2fce875562012 upstream.
Some ATA drives are very slow to respond to READ_LOG_EXT and
READ_LOG_DMA_EXT commands issued from ata_dev_configure() when the
device is revalidated right after resuming a system or inserting the
ATA adapter driver (e.g. ahci). The default 5s timeout
(ATA_EH_CMD_DFL_TIMEOUT) used for these commands is too short, causing
errors during the device configuration. Ex:
...
ata9: SATA max UDMA/133 abar m524288@0x9d200000 port 0x9d200400 irq 209
ata9: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
ata9.00: ATA-9: XXX XXXXXXXXXXXXXXX, XXXXXXXX, max UDMA/133
ata9.00: qc timeout (cmd 0x2f)
ata9.00: Read log page 0x00 failed, Emask 0x4
ata9.00: Read log page 0x00 failed, Emask 0x40
ata9.00: NCQ Send/Recv Log not supported
ata9.00: Read log page 0x08 failed, Emask 0x40
ata9.00: 27344764928 sectors, multi 16: LBA48 NCQ (depth 32), AA
ata9.00: Read log page 0x00 failed, Emask 0x40
ata9.00: ATA Identify Device Log not supported
ata9.00: failed to set xfermode (err_mask=0x40)
ata9: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
ata9.00: configured for UDMA/133
...
The timeout error causes a soft reset of the drive link, followed in
most cases by a successful revalidation as that give enough time to the
drive to become fully ready to quickly process the read log commands.
However, in some cases, this also fails resulting in the device being
dropped.
Fix this by using adding the ata_eh_revalidate_timeouts entries for the
READ_LOG_EXT and READ_LOG_DMA_EXT commands. This defines a timeout
increased to 15s, retriable one time.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 52f88693378a58094c538662ba652aff0253c4fe upstream.
Since binder was integrated with selinux, it has passed
'struct task_struct' associated with the binder_proc
to represent the source and target of transactions.
The conversion of task to SID was then done in the hook
implementations. It turns out that there are race conditions
which can result in an incorrect security context being used.
Fix by using the 'struct cred' saved during binder_open and pass
it to the selinux subsystem.
Cc: stable@vger.kernel.org # 5.14 (need backport for earlier stables)
Fixes: 79af73079d75 ("Add security hooks to binder and implement the hooks for SELinux.")
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 52f88693378a58094c538662ba652aff0253c4fe upstream.
Since binder was integrated with selinux, it has passed
'struct task_struct' associated with the binder_proc
to represent the source and target of transactions.
The conversion of task to SID was then done in the hook
implementations. It turns out that there are race conditions
which can result in an incorrect security context being used.
Fix by using the 'struct cred' saved during binder_open and pass
it to the selinux subsystem.
Cc: stable@vger.kernel.org # 5.14 (need backport for earlier stables)
Fixes: 79af73079d75 ("Add security hooks to binder and implement the hooks for SELinux.")
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Change-Id: Id7157515d2b08f11683aeb8ad9b8f1da075d34e7
[tkjos@ Fixed minor conflicts]
Bug: 200688826
Signed-off-by: Todd Kjos <tkjos@google.com>
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Changes in 4.4.290
ALSA: seq: Fix a potential UAF by wrong private_free call order
s390: fix strrchr() implementation
xhci: Enable trust tx length quirk for Fresco FL11 USB controller
cb710: avoid NULL pointer subtraction
efi/cper: use stack buffer for error record decoding
Input: xpad - add support for another USB ID of Nacon GC-100
USB: serial: qcserial: add EM9191 QDL support
USB: serial: option: add Telit LE910Cx composition 0x1204
nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells
iio: adc128s052: Fix the error handling path of 'adc128_probe()'
iio: ssp_sensors: add more range checking in ssp_parse_dataframe()
iio: ssp_sensors: fix error code in ssp_print_mcu_debug()
net: arc: select CRC32
net: korina: select CRC32
net: encx24j600: check error in devm_regmap_init_encx24j600
ethernet: s2io: fix setting mac address during resume
nfc: fix error handling of nfc_proto_register()
NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()
NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
pata_legacy: fix a couple uninitialized variable bugs
drm/msm: Fix null pointer dereference on pointer edp
r8152: select CRC32 and CRYPTO/CRYPTO_HASH/CRYPTO_SHA256
NFSD: Keep existing listeners on portlist error
netfilter: ipvs: make global sysctl readonly in non-init netns
NIOS2: irqflags: rename a redefined register name
can: rcar_can: fix suspend/resume
can: peak_usb: pcan_usb_fd_decode_status(): fix back to ERROR_ACTIVE state notification
can: peak_pci: peak_pci_remove(): fix UAF
ocfs2: mount fails with buffer overflow in strlen
elfcore: correct reference to CONFIG_UML
ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset
ASoC: DAPM: Fix missing kctl change notifications
ovl: fix missing negative dentry check in ovl_rename()
nfc: nci: fix the UAF of rf_conn_info object
isdn: cpai: check ctr->cnr to avoid array index out of bound
netfilter: Kconfig: use 'default y' instead of 'm' for bool config option
ARM: dts: spear3xx: Fix gmac node
isdn: mISDN: Fix sleeping function called from invalid context
platform/x86: intel_scu_ipc: Update timeout value in comment
ALSA: hda: avoid write to STATESTS if controller is in reset
net: mdiobus: Fix memory leak in __mdiobus_register
tracing: Have all levels of checks prevent recursion
ARM: 9122/1: select HAVE_FUTEX_CMPXCHG
Linux 4.4.290
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I97fdd4fb10f590df04407cb87713af101af36f67
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commit b0e901280d9860a0a35055f220e8e457f300f40a upstream.
Commit 6e7b64b9dd6d ("elfcore: fix building with clang") introduces
special handling for two architectures, ia64 and User Mode Linux.
However, the wrong name, i.e., CONFIG_UM, for the intended Kconfig
symbol for User-Mode Linux was used.
Although the directory for User Mode Linux is ./arch/um; the Kconfig
symbol for this architecture is called CONFIG_UML.
Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs:
UM
Referencing files: include/linux/elfcore.h
Similar symbols: UML, NUMA
Correct the name of the config to the intended one.
[akpm@linux-foundation.org: fix um/x86_64, per Catalin]
Link: https://lkml.kernel.org/r/20211006181119.2851441-1-catalin.marinas@arm.com
Link: https://lkml.kernel.org/r/YV6pejGzLy5ppEpt@arm.com
Link: https://lkml.kernel.org/r/20211006082209.417-1-lukas.bulwahn@gmail.com
Fixes: 6e7b64b9dd6d ("elfcore: fix building with clang")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Barret Rhoden <brho@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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lineage-18.1-caf-msm8998
# By Sergey Shtylyov (9) and others
# Via Greg Kroah-Hartman
* common/android-4.4-p:
Linux 4.4.288
libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
usb: testusb: Fix for showing the connection speed
scsi: sd: Free scsi_disk device via put_device()
ext2: fix sleeping in atomic bugs on error
sparc64: fix pci_iounmap() when CONFIG_PCI is not set
xen-netback: correct success/error reporting for the SKB-with-fraglist case
af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
Linux 4.4.287
Revert "arm64: Mark __stack_chk_guard as __ro_after_init"
Linux 4.4.286
cred: allow get_cred() and put_cred() to be given NULL.
HID: usbhid: free raw_report buffers in usbhid_stop
netfilter: ipset: Fix oversized kvmalloc() calls
HID: betop: fix slab-out-of-bounds Write in betop_probe
arm64: Extend workaround for erratum 1024718 to all versions of Cortex-A55
EDAC/synopsys: Fix wrong value type assignment for edac_mode
ext4: fix potential infinite loop in ext4_dx_readdir()
ipack: ipoctal: fix module reference leak
ipack: ipoctal: fix missing allocation-failure check
ipack: ipoctal: fix tty-registration error handling
ipack: ipoctal: fix tty registration race
ipack: ipoctal: fix stack information leak
e100: fix buffer overrun in e100_get_regs
e100: fix length calculation in e100_get_regs_len
ipvs: check that ip_vs_conn_tab_bits is between 8 and 20
mac80211: fix use-after-free in CCMP/GCMP RX
tty: Fix out-of-bound vmalloc access in imageblit
qnx4: work around gcc false positive warning bug
spi: Fix tegra20 build with CONFIG_PM=n
net: 6pack: Fix tx timeout and slot time
alpha: Declare virt_to_phys and virt_to_bus parameter as pointer to volatile
arm64: Mark __stack_chk_guard as __ro_after_init
parisc: Use absolute_pointer() to define PAGE0
qnx4: avoid stringop-overread errors
sparc: avoid stringop-overread errors
net: i825xx: Use absolute_pointer for memcpy from fixed memory location
compiler.h: Introduce absolute_pointer macro
m68k: Double cast io functions to unsigned long
blktrace: Fix uaf in blk_trace access after removing by sysfs
scsi: iscsi: Adjust iface sysfs attr detection
net/mlx4_en: Don't allow aRFS for encapsulated packets
net: hso: fix muxed tty registration
USB: serial: option: add device id for Foxconn T99W265
USB: serial: option: remove duplicate USB device ID
USB: serial: option: add Telit LN920 compositions
USB: serial: mos7840: remove duplicated 0xac24 device ID
USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
xen/x86: fix PV trap handling on secondary processors
cifs: fix incorrect check for null pointer in header_assemble
usb: musb: tusb6010: uninitialized data in tusb_fifo_write_unaligned()
usb: gadget: r8a66597: fix a loop in set_feature()
Linux 4.4.285
sctp: validate from_addr_param return
drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV
blk-throttle: fix UAF by deleteing timer in blk_throtl_exit()
nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group
nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group
nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group
nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group
nilfs2: fix NULL pointer in nilfs_##name##_attr_release
nilfs2: fix memory leak in nilfs_sysfs_create_device_group
ceph: lockdep annotations for try_nonblocking_invalidate
dmaengine: ioat: depends on !UML
parisc: Move pci_dev_is_behind_card_dino to where it is used
dmaengine: acpi: Avoid comparison GSI with Linux vIRQ
dmaengine: acpi-dma: check for 64-bit MMIO address
profiling: fix shift-out-of-bounds bugs
prctl: allow to setup brk for et_dyn executables
9p/trans_virtio: Remove sysfs file on probe failure
thermal/drivers/exynos: Fix an error code in exynos_tmu_probe()
sctp: add param size validation for SCTP_PARAM_SET_PRIMARY
sctp: validate chunk size in __rcv_asconf_lookup
PM / wakeirq: Fix unbalanced IRQ enable for wakeirq
s390/bpf: Fix optimizing out zero-extensions
Linux 4.4.284
s390/bpf: Fix 64-bit subtraction of the -0x80000000 constant
net: renesas: sh_eth: Fix freeing wrong tx descriptor
qlcnic: Remove redundant unlock in qlcnic_pinit_from_rom
ARC: export clear_user_page() for modules
mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'
PCI: Sync __pci_register_driver() stub for CONFIG_PCI=n
ethtool: Fix an error code in cxgb2.c
dt-bindings: mtd: gpmc: Fix the ECC bytes vs. OOB bytes equation
x86/mm: Fix kern_addr_valid() to cope with existing but not present entries
net/af_unix: fix a data-race in unix_dgram_poll
tipc: increase timeout in tipc_sk_enqueue()
r6040: Restore MDIO clock frequency after MAC reset
net/l2tp: Fix reference count leak in l2tp_udp_recv_core
dccp: don't duplicate ccid when cloning dccp sock
ptp: dp83640: don't define PAGE0
net-caif: avoid user-triggerable WARN_ON(1)
bnx2x: Fix enabling network interfaces without VFs
platform/chrome: cros_ec_proto: Send command again when timeout occurs
parisc: fix crash with signals and alloca
net: fix NULL pointer reference in cipso_v4_doi_free
ath9k: fix OOB read ar9300_eeprom_restore_internal
parport: remove non-zero check on count
Revert "USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set"
cifs: fix wrong release in sess_alloc_buffer() failed path
mmc: rtsx_pci: Fix long reads when clock is prescaled
gfs2: Don't call dlm after protocol is unmounted
rpc: fix gss_svc_init cleanup on failure
ARM: tegra: tamonten: Fix UART pad setting
gpu: drm: amd: amdgpu: amdgpu_i2c: fix possible uninitialized-variable access in amdgpu_i2c_router_select_ddc_port()
Bluetooth: skip invalid hci_sync_conn_complete_evt
serial: 8250_pci: make setup_port() parameters explicitly unsigned
hvsi: don't panic on tty_register_driver failure
xtensa: ISS: don't panic in rs_init
serial: 8250: Define RX trigger levels for OxSemi 950 devices
s390/jump_label: print real address in a case of a jump label bug
ipv4: ip_output.c: Fix out-of-bounds warning in ip_copy_addrs()
video: fbdev: riva: Error out if 'pixclock' equals zero
video: fbdev: kyro: Error out if 'pixclock' equals zero
video: fbdev: asiliantfb: Error out if 'pixclock' equals zero
bpf/tests: Do not PASS tests without actually testing the result
bpf/tests: Fix copy-and-paste error in double word test
tty: serial: jsm: hold port lock when reporting modem line changes
usb: gadget: u_ether: fix a potential null pointer dereference
usb: host: fotg210: fix the actual_length of an iso packet
Smack: Fix wrong semantics in smk_access_entry()
netlink: Deal with ESRCH error in nlmsg_notify()
video: fbdev: kyro: fix a DoS bug by restricting user input
iio: dac: ad5624r: Fix incorrect handling of an optional regulator.
PCI: Use pci_update_current_state() in pci_enable_device_flags()
crypto: mxs-dcp - Use sg_mapping_iter to copy data
pinctrl: single: Fix error return code in pcs_parse_bits_in_pinctrl_entry()
openrisc: don't printk() unconditionally
PCI: Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure
PCI: Restrict ASMedia ASM1062 SATA Max Payload Size Supported
ARM: 9105/1: atags_to_fdt: don't warn about stack size
libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs
media: rc-loopback: return number of emitters rather than error
media: uvc: don't do DMA on stack
VMCI: fix NULL pointer dereference when unmapping queue pair
power: supply: max17042: handle fails of reading status register
xen: fix setting of max_pfn in shared_info
PCI/MSI: Skip masking MSI-X on Xen PV
rtc: tps65910: Correct driver module alias
fbmem: don't allow too huge resolutions
clk: kirkwood: Fix a clocking boot regression
KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted
tty: Fix data race between tiocsti() and flush_to_ldisc()
ipv4: make exception cache less predictible
bcma: Fix memory leak for internally-handled cores
ath6kl: wmi: fix an error code in ath6kl_wmi_sync_point()
usb: ehci-orion: Handle errors of clk_prepare_enable() in probe
i2c: mt65xx: fix IRQ check
CIFS: Fix a potencially linear read overflow
mmc: moxart: Fix issue with uninitialized dma_slave_config
mmc: dw_mmc: Fix issue with uninitialized dma_slave_config
i2c: s3c2410: fix IRQ check
i2c: iop3xx: fix deferred probing
Bluetooth: add timeout sanity check to hci_inquiry
usb: gadget: mv_u3d: request_irq() after initializing UDC
usb: phy: tahvo: add IRQ check
usb: host: ohci-tmio: add IRQ check
Bluetooth: Move shutdown callback before flushing tx and rx queue
usb: phy: twl6030: add IRQ checks
usb: phy: fsl-usb: add IRQ check
usb: gadget: udc: at91: add IRQ check
drm/msm/dsi: Fix some reference counted resource leaks
Bluetooth: fix repeated calls to sco_sock_kill
arm64: dts: exynos: correct GIC CPU interfaces address range on Exynos7
Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow
PCI: PM: Enable PME if it can be signaled from D3cold
i2c: highlander: add IRQ check
net: cipso: fix warnings in netlbl_cipsov4_add_std
tcp: seq_file: Avoid skipping sk during tcp_seek_last_pos
Bluetooth: sco: prevent information leak in sco_conn_defer_accept()
media: go7007: remove redundant initialization
media: dvb-usb: fix uninit-value in vp702x_read_mac_addr
media: dvb-usb: fix uninit-value in dvb_usb_adapter_dvb_init
certs: Trigger creation of RSA module signing key if it's not an RSA key
m68k: emu: Fix invalid free in nfeth_cleanup()
udf_get_extendedattr() had no boundary checks.
crypto: qat - fix reuse of completion variable
crypto: qat - do not ignore errors from enable_vf2pf_comms()
libata: fix ata_host_start()
power: supply: max17042_battery: fix typo in MAx17042_TOFF
crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop()
crypto: mxs-dcp - Check for DMA mapping errors
PCI: Call Max Payload Size-related fixup quirks early
x86/reboot: Limit Dell Optiplex 990 quirk to early BIOS versions
Revert "btrfs: compression: don't try to compress if we don't have enough pages"
mm/page_alloc: speed up the iteration of max_order
net: ll_temac: Remove left-over debug message
powerpc/boot: Delete unneeded .globl _zimage_start
powerpc/module64: Fix comment in R_PPC64_ENTRY handling
mm/kmemleak.c: make cond_resched() rate-limiting more efficient
s390/disassembler: correct disassembly lines alignment
ipv4/icmp: l3mdev: Perform icmp error route lookup on source device routing table (v2)
tc358743: fix register i2c_rd/wr function fix
PM / wakeirq: Enable dedicated wakeirq for suspend
USB: serial: mos7720: improve OOM-handling in read_mos_reg()
usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled
igmp: Add ip_mc_list lock in ip_check_mc_rcu
media: stkwebcam: fix memory leak in stk_camera_probe
ath9k: Postpone key cache entry deletion for TXQ frames reference it
ath: Modify ath_key_delete() to not need full key entry
ath: Export ath_hw_keysetmac()
ath9k: Clear key cache explicitly on disabling hardware
ath: Use safer key clearing with key cache entries
ALSA: pcm: fix divide error in snd_pcm_lib_ioctl
ARM: 8918/2: only build return_address() if needed
cryptoloop: add a deprecation warning
qede: Fix memset corruption
ARC: fix allnoconfig build warning
xtensa: fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG
ext4: fix race writing to an inline_data file while its xattrs are changing
Change-Id: I0d3200388e095f977c784cba314b9cc061848c7a
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Changes in 4.4.288
af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
xen-netback: correct success/error reporting for the SKB-with-fraglist case
sparc64: fix pci_iounmap() when CONFIG_PCI is not set
ext2: fix sleeping in atomic bugs on error
scsi: sd: Free scsi_disk device via put_device()
usb: testusb: Fix for showing the connection speed
libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD.
Linux 4.4.288
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id6d93b8ff677b720c77d0f1384141464e0aaf1e8
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commit 7a8526a5cd51cf5f070310c6c37dd7293334ac49 upstream.
Many users are reporting that the Samsung 860 and 870 SSD are having
various issues when combined with AMD/ATI (vendor ID 0x1002) SATA
controllers and only completely disabling NCQ helps to avoid these
issues.
Always disabling NCQ for Samsung 860/870 SSDs regardless of the host
SATA adapter vendor will cause I/O performance degradation with well
behaved adapters. To limit the performance impact to ATI adapters,
introduce the ATA_HORKAGE_NO_NCQ_ON_ATI flag to force disable NCQ
only for these adapters.
Also, two libata.force parameters (noncqati and ncqati) are introduced
to disable and enable the NCQ for the system which equipped with ATI
SATA adapter and Samsung 860 and 870 SSDs. The user can determine NCQ
function to be enabled or disabled according to the demand.
After verifying the chipset from the user reports, the issue appears
on AMD/ATI SB7x0/SB8x0/SB9x0 SATA Controllers and does not appear on
recent AMD SATA adapters. The vendor ID of ATI should be 0x1002.
Therefore, ATA_HORKAGE_NO_NCQ_ON_AMD was modified to
ATA_HORKAGE_NO_NCQ_ON_ATI.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201693
Signed-off-by: Kate Hsuan <hpa@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210903094411.58749-1-hpa@redhat.com
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Krzysztof Olędzki <ole@ans.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.286
usb: gadget: r8a66597: fix a loop in set_feature()
usb: musb: tusb6010: uninitialized data in tusb_fifo_write_unaligned()
cifs: fix incorrect check for null pointer in header_assemble
xen/x86: fix PV trap handling on secondary processors
USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
USB: serial: mos7840: remove duplicated 0xac24 device ID
USB: serial: option: add Telit LN920 compositions
USB: serial: option: remove duplicate USB device ID
USB: serial: option: add device id for Foxconn T99W265
net: hso: fix muxed tty registration
net/mlx4_en: Don't allow aRFS for encapsulated packets
scsi: iscsi: Adjust iface sysfs attr detection
blktrace: Fix uaf in blk_trace access after removing by sysfs
m68k: Double cast io functions to unsigned long
compiler.h: Introduce absolute_pointer macro
net: i825xx: Use absolute_pointer for memcpy from fixed memory location
sparc: avoid stringop-overread errors
qnx4: avoid stringop-overread errors
parisc: Use absolute_pointer() to define PAGE0
arm64: Mark __stack_chk_guard as __ro_after_init
alpha: Declare virt_to_phys and virt_to_bus parameter as pointer to volatile
net: 6pack: Fix tx timeout and slot time
spi: Fix tegra20 build with CONFIG_PM=n
qnx4: work around gcc false positive warning bug
tty: Fix out-of-bound vmalloc access in imageblit
mac80211: fix use-after-free in CCMP/GCMP RX
ipvs: check that ip_vs_conn_tab_bits is between 8 and 20
e100: fix length calculation in e100_get_regs_len
e100: fix buffer overrun in e100_get_regs
ipack: ipoctal: fix stack information leak
ipack: ipoctal: fix tty registration race
ipack: ipoctal: fix tty-registration error handling
ipack: ipoctal: fix missing allocation-failure check
ipack: ipoctal: fix module reference leak
ext4: fix potential infinite loop in ext4_dx_readdir()
EDAC/synopsys: Fix wrong value type assignment for edac_mode
arm64: Extend workaround for erratum 1024718 to all versions of Cortex-A55
HID: betop: fix slab-out-of-bounds Write in betop_probe
netfilter: ipset: Fix oversized kvmalloc() calls
HID: usbhid: free raw_report buffers in usbhid_stop
cred: allow get_cred() and put_cred() to be given NULL.
Linux 4.4.286
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3180bfeaddc99c8d216f932c9f149060cc60f16e
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commit f06bc03339ad4c1baa964a5f0606247ac1c3c50b upstream.
It is common practice for helpers like this to silently,
accept a NULL pointer.
get_rpccred() and put_rpccred() used by NFS act this way
and using the same interface will ease the conversion
for NFS, and simplify the resulting code.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit f6b5f1a56987de837f8e25cd560847106b8632a8 ]
absolute_pointer() disassociates a pointer from its originating symbol
type and context. Use it to prevent compiler warnings/errors such as
drivers/net/ethernet/i825xx/82596.c: In function 'i82596_probe':
arch/m68k/include/asm/string.h:72:25: error:
'__builtin_memcpy' reading 6 bytes from a region of size 0 [-Werror=stringop-overread]
Such warnings may be reported by gcc 11.x for string and memory
operations on fixed addresses.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Changes in 4.4.284
ext4: fix race writing to an inline_data file while its xattrs are changing
xtensa: fix kconfig unmet dependency warning for HAVE_FUTEX_CMPXCHG
ARC: fix allnoconfig build warning
qede: Fix memset corruption
cryptoloop: add a deprecation warning
ARM: 8918/2: only build return_address() if needed
ALSA: pcm: fix divide error in snd_pcm_lib_ioctl
ath: Use safer key clearing with key cache entries
ath9k: Clear key cache explicitly on disabling hardware
ath: Export ath_hw_keysetmac()
ath: Modify ath_key_delete() to not need full key entry
ath9k: Postpone key cache entry deletion for TXQ frames reference it
media: stkwebcam: fix memory leak in stk_camera_probe
igmp: Add ip_mc_list lock in ip_check_mc_rcu
usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled
USB: serial: mos7720: improve OOM-handling in read_mos_reg()
PM / wakeirq: Enable dedicated wakeirq for suspend
tc358743: fix register i2c_rd/wr function fix
ipv4/icmp: l3mdev: Perform icmp error route lookup on source device routing table (v2)
s390/disassembler: correct disassembly lines alignment
mm/kmemleak.c: make cond_resched() rate-limiting more efficient
powerpc/module64: Fix comment in R_PPC64_ENTRY handling
powerpc/boot: Delete unneeded .globl _zimage_start
net: ll_temac: Remove left-over debug message
mm/page_alloc: speed up the iteration of max_order
Revert "btrfs: compression: don't try to compress if we don't have enough pages"
x86/reboot: Limit Dell Optiplex 990 quirk to early BIOS versions
PCI: Call Max Payload Size-related fixup quirks early
crypto: mxs-dcp - Check for DMA mapping errors
crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop()
power: supply: max17042_battery: fix typo in MAx17042_TOFF
libata: fix ata_host_start()
crypto: qat - do not ignore errors from enable_vf2pf_comms()
crypto: qat - fix reuse of completion variable
udf_get_extendedattr() had no boundary checks.
m68k: emu: Fix invalid free in nfeth_cleanup()
certs: Trigger creation of RSA module signing key if it's not an RSA key
media: dvb-usb: fix uninit-value in dvb_usb_adapter_dvb_init
media: dvb-usb: fix uninit-value in vp702x_read_mac_addr
media: go7007: remove redundant initialization
Bluetooth: sco: prevent information leak in sco_conn_defer_accept()
tcp: seq_file: Avoid skipping sk during tcp_seek_last_pos
net: cipso: fix warnings in netlbl_cipsov4_add_std
i2c: highlander: add IRQ check
PCI: PM: Enable PME if it can be signaled from D3cold
Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow
arm64: dts: exynos: correct GIC CPU interfaces address range on Exynos7
Bluetooth: fix repeated calls to sco_sock_kill
drm/msm/dsi: Fix some reference counted resource leaks
usb: gadget: udc: at91: add IRQ check
usb: phy: fsl-usb: add IRQ check
usb: phy: twl6030: add IRQ checks
Bluetooth: Move shutdown callback before flushing tx and rx queue
usb: host: ohci-tmio: add IRQ check
usb: phy: tahvo: add IRQ check
usb: gadget: mv_u3d: request_irq() after initializing UDC
Bluetooth: add timeout sanity check to hci_inquiry
i2c: iop3xx: fix deferred probing
i2c: s3c2410: fix IRQ check
mmc: dw_mmc: Fix issue with uninitialized dma_slave_config
mmc: moxart: Fix issue with uninitialized dma_slave_config
CIFS: Fix a potencially linear read overflow
i2c: mt65xx: fix IRQ check
usb: ehci-orion: Handle errors of clk_prepare_enable() in probe
ath6kl: wmi: fix an error code in ath6kl_wmi_sync_point()
bcma: Fix memory leak for internally-handled cores
ipv4: make exception cache less predictible
tty: Fix data race between tiocsti() and flush_to_ldisc()
KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted
clk: kirkwood: Fix a clocking boot regression
fbmem: don't allow too huge resolutions
rtc: tps65910: Correct driver module alias
PCI/MSI: Skip masking MSI-X on Xen PV
xen: fix setting of max_pfn in shared_info
power: supply: max17042: handle fails of reading status register
VMCI: fix NULL pointer dereference when unmapping queue pair
media: uvc: don't do DMA on stack
media: rc-loopback: return number of emitters rather than error
libata: add ATA_HORKAGE_NO_NCQ_TRIM for Samsung 860 and 870 SSDs
ARM: 9105/1: atags_to_fdt: don't warn about stack size
PCI: Restrict ASMedia ASM1062 SATA Max Payload Size Supported
PCI: Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure
openrisc: don't printk() unconditionally
pinctrl: single: Fix error return code in pcs_parse_bits_in_pinctrl_entry()
crypto: mxs-dcp - Use sg_mapping_iter to copy data
PCI: Use pci_update_current_state() in pci_enable_device_flags()
iio: dac: ad5624r: Fix incorrect handling of an optional regulator.
video: fbdev: kyro: fix a DoS bug by restricting user input
netlink: Deal with ESRCH error in nlmsg_notify()
Smack: Fix wrong semantics in smk_access_entry()
usb: host: fotg210: fix the actual_length of an iso packet
usb: gadget: u_ether: fix a potential null pointer dereference
tty: serial: jsm: hold port lock when reporting modem line changes
bpf/tests: Fix copy-and-paste error in double word test
bpf/tests: Do not PASS tests without actually testing the result
video: fbdev: asiliantfb: Error out if 'pixclock' equals zero
video: fbdev: kyro: Error out if 'pixclock' equals zero
video: fbdev: riva: Error out if 'pixclock' equals zero
ipv4: ip_output.c: Fix out-of-bounds warning in ip_copy_addrs()
s390/jump_label: print real address in a case of a jump label bug
serial: 8250: Define RX trigger levels for OxSemi 950 devices
xtensa: ISS: don't panic in rs_init
hvsi: don't panic on tty_register_driver failure
serial: 8250_pci: make setup_port() parameters explicitly unsigned
Bluetooth: skip invalid hci_sync_conn_complete_evt
gpu: drm: amd: amdgpu: amdgpu_i2c: fix possible uninitialized-variable access in amdgpu_i2c_router_select_ddc_port()
ARM: tegra: tamonten: Fix UART pad setting
rpc: fix gss_svc_init cleanup on failure
gfs2: Don't call dlm after protocol is unmounted
mmc: rtsx_pci: Fix long reads when clock is prescaled
cifs: fix wrong release in sess_alloc_buffer() failed path
Revert "USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set"
parport: remove non-zero check on count
ath9k: fix OOB read ar9300_eeprom_restore_internal
net: fix NULL pointer reference in cipso_v4_doi_free
parisc: fix crash with signals and alloca
platform/chrome: cros_ec_proto: Send command again when timeout occurs
bnx2x: Fix enabling network interfaces without VFs
net-caif: avoid user-triggerable WARN_ON(1)
ptp: dp83640: don't define PAGE0
dccp: don't duplicate ccid when cloning dccp sock
net/l2tp: Fix reference count leak in l2tp_udp_recv_core
r6040: Restore MDIO clock frequency after MAC reset
tipc: increase timeout in tipc_sk_enqueue()
net/af_unix: fix a data-race in unix_dgram_poll
x86/mm: Fix kern_addr_valid() to cope with existing but not present entries
dt-bindings: mtd: gpmc: Fix the ECC bytes vs. OOB bytes equation
ethtool: Fix an error code in cxgb2.c
PCI: Sync __pci_register_driver() stub for CONFIG_PCI=n
mtd: rawnand: cafe: Fix a resource leak in the error handling path of 'cafe_nand_probe()'
ARC: export clear_user_page() for modules
qlcnic: Remove redundant unlock in qlcnic_pinit_from_rom
net: renesas: sh_eth: Fix freeing wrong tx descriptor
s390/bpf: Fix 64-bit subtraction of the -0x80000000 constant
Linux 4.4.284
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Idf3220461e42648ba134a245e9670231dbd18b5c
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[ Upstream commit 817f9916a6e96ae43acdd4e75459ef4f92d96eb1 ]
The CONFIG_PCI=y case got a new parameter long time ago. Sync the stub as
well.
[bhelgaas: add parameter names]
Fixes: 725522b5453d ("PCI: add the sysfs driver name to all modules")
Link: https://lore.kernel.org/r/20210813153619.89574-1-andriy.shevchenko@linux.intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 04f08eb44b5011493d77b602fdec29ff0f5c6cd5 upstream.
syzbot reported another data-race in af_unix [1]
Lets change __skb_insert() to use WRITE_ONCE() when changing
skb head qlen.
Also, change unix_dgram_poll() to use lockless version
of unix_recvq_full()
It is verry possible we can switch all/most unix_recvq_full()
to the lockless version, this will be done in a future kernel version.
[1] HEAD commit: 8596e589b787732c8346f0482919e83cc9362db1
BUG: KCSAN: data-race in skb_queue_tail / unix_dgram_poll
write to 0xffff88814eeb24e0 of 4 bytes by task 25815 on cpu 0:
__skb_insert include/linux/skbuff.h:1938 [inline]
__skb_queue_before include/linux/skbuff.h:2043 [inline]
__skb_queue_tail include/linux/skbuff.h:2076 [inline]
skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3264
unix_dgram_sendmsg+0xff2/0x1600 net/unix/af_unix.c:1850
sock_sendmsg_nosec net/socket.c:703 [inline]
sock_sendmsg net/socket.c:723 [inline]
____sys_sendmsg+0x360/0x4d0 net/socket.c:2392
___sys_sendmsg net/socket.c:2446 [inline]
__sys_sendmmsg+0x315/0x4b0 net/socket.c:2532
__do_sys_sendmmsg net/socket.c:2561 [inline]
__se_sys_sendmmsg net/socket.c:2558 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2558
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
read to 0xffff88814eeb24e0 of 4 bytes by task 25834 on cpu 1:
skb_queue_len include/linux/skbuff.h:1869 [inline]
unix_recvq_full net/unix/af_unix.c:194 [inline]
unix_dgram_poll+0x2bc/0x3e0 net/unix/af_unix.c:2777
sock_poll+0x23e/0x260 net/socket.c:1288
vfs_poll include/linux/poll.h:90 [inline]
ep_item_poll fs/eventpoll.c:846 [inline]
ep_send_events fs/eventpoll.c:1683 [inline]
ep_poll fs/eventpoll.c:1798 [inline]
do_epoll_wait+0x6ad/0xf00 fs/eventpoll.c:2226
__do_sys_epoll_wait fs/eventpoll.c:2238 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2233 [inline]
__x64_sys_epoll_wait+0xf6/0x120 fs/eventpoll.c:2233
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0x0000001b -> 0x00000001
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 25834 Comm: syz-executor.1 Tainted: G W 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: 86b18aaa2b5b ("skbuff: fix a data race in skb_queue_len()")
Cc: Qian Cai <cai@lca.pw>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ed0d0a0506025f06061325cedae1bbebd081620a ]
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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lineage-18.1-caf-msm8998
# By Thomas Gleixner (11) and others
# Via Greg Kroah-Hartman
* google/common/android-4.4-p:
Linux 4.4.283
Revert "floppy: reintroduce O_NDELAY fix"
fbmem: add margin check to fb_check_caps()
vt_kdsetmode: extend console locking
vringh: Use wiov->used to check for read/write desc order
virtio: Improve vq->broken access to avoid any compiler optimization
net: marvell: fix MVNETA_TX_IN_PRGRS bit number
e1000e: Fix the max snoop/no-snoop latency for 10M
USB: serial: option: add new VID/PID to support Fibocom FG150
Revert "USB: serial: ch341: fix character loss at high transfer rates"
can: usb: esd_usb2: esd_usb2_rx_event(): fix the interchange of the CAN RX and TX error counters
Linux 4.4.282
mmc: dw_mmc: Fix occasional hang after tuning on eMMC
ASoC: intel: atom: Fix breakage for PCM buffer address setup
ipack: tpci200: fix many double free issues in tpci200_pci_probe
ALSA: hda - fix the 'Capture Switch' value change notifications
mmc: dw_mmc: Fix hang on data CRC error
mmc: dw_mmc: call the dw_mci_prep_stop_abort() by default
mmc: dw_mmc: Wait for data transfer after response errors.
net: qlcnic: add missed unlock in qlcnic_83xx_flash_read32
net: 6pack: fix slab-out-of-bounds in decode_data
dccp: add do-while-0 stubs for dccp_pr_debug macros
Bluetooth: hidp: use correct wait queue when removing ctrl_wait
scsi: core: Avoid printing an error if target_alloc() returns -ENXIO
scsi: megaraid_mm: Fix end of loop tests for list_for_each_entry()
dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available
ARM: dts: am43x-epos-evm: Reduce i2c0 bus speed for tps65218
dmaengine: usb-dmac: Fix PM reference leak in usb_dmac_probe()
KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl (CVE-2021-3653)
vmlinux.lds.h: Handle clang's module.{c,d}tor sections
PCI/MSI: Enforce MSI[X] entry updates to be visible
PCI/MSI: Enforce that MSI-X table entry is masked for update
PCI/MSI: Mask all unused MSI-X entries
PCI/MSI: Protect msi_desc::masked for multi-MSI
PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown()
PCI/MSI: Correct misleading comments
PCI/MSI: Do not set invalid bits in MSI mask
PCI/MSI: Enable and mask MSI-X early
x86/tools: Fix objdump version check again
xen/events: Fix race in set_evtchn_to_irq
net: Fix memory leak in ieee802154_raw_deliver
i2c: dev: zero out array used for i2c reads from userspace
ASoC: intel: atom: Fix reference to PCM buffer address
ANDROID: xt_quota2: set usersize in xt_match registration object
ANDROID: xt_quota2: clear quota2_log message before sending
ANDROID: xt_quota2: remove trailing junk which might have a digit in it
UPSTREAM: netfilter: x_tables: fix pointer leaks to userspace
Linux 4.4.281
ovl: prevent private clone if bind mount is not allowed
net: xilinx_emaclite: Do not print real IOMEM pointer
USB:ehci:fix Kunpeng920 ehci hardware problem
pipe: increase minimum default pipe size to 2 pages
net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset
alpha: Send stop IPI to send to online CPUs
reiserfs: check directory items on read from disk
reiserfs: add check for root_inode in reiserfs_fill_super
pcmcia: i82092: fix a null pointer dereference bug
MIPS: Malta: Do not byte-swap accesses to the CBUS UART
serial: 8250: Mask out floating 16/32-bit bus bits
media: rtl28xxu: fix zero-length control request
scripts/tracing: fix the bug that can't parse raw_trace_func
USB: serial: ftdi_sio: add device ID for Auto-M3 OP-COM v2
USB: serial: ch341: fix character loss at high transfer rates
USB: serial: option: add Telit FD980 composition 0x1056
Bluetooth: defer cleanup of resources in hci_unregister_dev()
net: vxge: fix use-after-free in vxge_device_unregister
net: pegasus: fix uninit-value in get_interrupt_interval
bnx2x: fix an error code in bnx2x_nic_load()
mips: Fix non-POSIX regexp
net: natsemi: Fix missing pci_disable_device() in probe and remove
media: videobuf2-core: dequeue if start_streaming fails
scsi: sr: Return correct event when media event code is 3
ALSA: seq: Fix racy deletion of subscriber
Linux 4.4.280
rcu: Update documentation of rcu_read_unlock()
futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock()
futex: Avoid freeing an active timer
futex: Handle transient "ownerless" rtmutex state correctly
rtmutex: Make wait_lock irq safe
futex: Futex_unlock_pi() determinism
futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock()
futex: Pull rt_mutex_futex_unlock() out from under hb->lock
futex,rt_mutex: Introduce rt_mutex_init_waiter()
futex: Cleanup refcounting
futex: Rename free_pi_state() to put_pi_state()
Linux 4.4.279
can: raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
Revert "Bluetooth: Shutdown controller after workqueues are flushed or cancelled"
net: Fix zero-copy head len calculation.
r8152: Fix potential PM refcount imbalance
regulator: rt5033: Fix n_voltages settings for BUCK and LDO
btrfs: mark compressed range uptodate only if all bio succeed
Conflicts:
net/bluetooth/hci_core.c
net/netfilter/xt_quota2.c
Change-Id: I66e2384c8cc40448a7bff34bb935c74e6103e924
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Changes in 4.4.282
ASoC: intel: atom: Fix reference to PCM buffer address
i2c: dev: zero out array used for i2c reads from userspace
net: Fix memory leak in ieee802154_raw_deliver
xen/events: Fix race in set_evtchn_to_irq
x86/tools: Fix objdump version check again
PCI/MSI: Enable and mask MSI-X early
PCI/MSI: Do not set invalid bits in MSI mask
PCI/MSI: Correct misleading comments
PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown()
PCI/MSI: Protect msi_desc::masked for multi-MSI
PCI/MSI: Mask all unused MSI-X entries
PCI/MSI: Enforce that MSI-X table entry is masked for update
PCI/MSI: Enforce MSI[X] entry updates to be visible
vmlinux.lds.h: Handle clang's module.{c,d}tor sections
KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl (CVE-2021-3653)
dmaengine: usb-dmac: Fix PM reference leak in usb_dmac_probe()
ARM: dts: am43x-epos-evm: Reduce i2c0 bus speed for tps65218
dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available
scsi: megaraid_mm: Fix end of loop tests for list_for_each_entry()
scsi: core: Avoid printing an error if target_alloc() returns -ENXIO
Bluetooth: hidp: use correct wait queue when removing ctrl_wait
dccp: add do-while-0 stubs for dccp_pr_debug macros
net: 6pack: fix slab-out-of-bounds in decode_data
net: qlcnic: add missed unlock in qlcnic_83xx_flash_read32
mmc: dw_mmc: Wait for data transfer after response errors.
mmc: dw_mmc: call the dw_mci_prep_stop_abort() by default
mmc: dw_mmc: Fix hang on data CRC error
ALSA: hda - fix the 'Capture Switch' value change notifications
ipack: tpci200: fix many double free issues in tpci200_pci_probe
ASoC: intel: atom: Fix breakage for PCM buffer address setup
mmc: dw_mmc: Fix occasional hang after tuning on eMMC
Linux 4.4.282
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifed03ee647494ce96ad9673a133a9b77649b5c12
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commit 77e89afc25f30abd56e76a809ee2884d7c1b63ce upstream.
Multi-MSI uses a single MSI descriptor and there is a single mask register
when the device supports per vector masking. To avoid reading back the mask
register the value is cached in the MSI descriptor and updates are done by
clearing and setting bits in the cache and writing it to the device.
But nothing protects msi_desc::masked and the mask register from being
modified concurrently on two different CPUs for two different Linux
interrupts which belong to the same multi-MSI descriptor.
Add a lock to struct device and protect any operation on the mask and the
mask register with it.
This makes the update of msi_desc::masked unconditional, but there is no
place which requires a modification of the hardware register without
updating the masked cache.
msi_mask_irq() is now an empty wrapper which will be cleaned up in follow
up changes.
The problem goes way back to the initial support of multi-MSI, but picking
the commit which introduced the mask cache is a valid cut off point
(2.6.30).
Fixes: f2440d9acbe8 ("PCI MSI: Refactor interrupt masking code")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210729222542.726833414@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.280
futex: Rename free_pi_state() to put_pi_state()
futex: Cleanup refcounting
futex,rt_mutex: Introduce rt_mutex_init_waiter()
futex: Pull rt_mutex_futex_unlock() out from under hb->lock
futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock()
futex: Futex_unlock_pi() determinism
rtmutex: Make wait_lock irq safe
futex: Handle transient "ownerless" rtmutex state correctly
futex: Avoid freeing an active timer
futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock()
rcu: Update documentation of rcu_read_unlock()
Linux 4.4.280
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib8bf7ba366087b2442c4de8a078f0a252b076c51
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