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* refs/heads/tmp-c71ad0f:
BACKPORT: arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions
staging: android: ashmem: lseek failed due to no FMODE_LSEEK.
ANDROID: sdcardfs: update module info
ANDROID: sdcardfs: use d_splice_alias
ANDROID: sdcardfs: add read_iter/write_iter opeations
ANDROID: sdcardfs: fix ->llseek to update upper and lower offset
ANDROID: sdcardfs: copy lower inode attributes in ->ioctl
ANDROID: sdcardfs: remove unnecessary call to do_munmap
Merge 4.4.59 into android-4.4
UPSTREAM: ipv6 addrconf: implement RFC7559 router solicitation backoff
android: base-cfg: enable CONFIG_INET_DIAG_DESTROY
ANDROID: android-base.cfg: add CONFIG_MODULES option
ANDROID: android-base.cfg: add CONFIG_IKCONFIG option
ANDROID: android-base.cfg: properly sort the file
ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.
ANDROID: sort android-recommended.cfg
UPSTREAM: config/android: Remove CONFIG_IPV6_PRIVACY
UPSTREAM: config: android: set SELinux as default security mode
config: android: move device mapper options to recommended
ANDROID: ARM64: Allow to choose appended kernel image
UPSTREAM: arm64: vdso: constify vm_special_mapping used for aarch32 vectors page
UPSTREAM: arm64: vdso: add __init section marker to alloc_vectors_page
UPSTREAM: ARM: 8597/1: VDSO: put RO and RO after init objects into proper sections
UPSTREAM: arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO
UPSTREAM: arm64: Refactor vDSO time functions
UPSTREAM: arm64: fix vdso-offsets.h dependency
UPSTREAM: kbuild: drop FORCE from PHONY targets
UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn()
UPSTREAM: ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check
Linux 4.4.58
crypto: algif_hash - avoid zero-sized array
fbcon: Fix vc attr at deinit
serial: 8250_pci: Detach low-level driver during PCI error recovery
ACPI / blacklist: Make Dell Latitude 3350 ethernet work
ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
uvcvideo: uvc_scan_fallback() for webcams with broken chain
s390/zcrypt: Introduce CEX6 toleration
block: allow WRITE_SAME commands with the SG_IO ioctl
vfio/spapr: Postpone allocation of userspace version of TCE table
PCI: Do any VF BAR updates before enabling the BARs
PCI: Ignore BAR updates on virtual functions
PCI: Update BARs using property bits appropriate for type
PCI: Don't update VF BARs while VF memory space is enabled
PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE
PCI: Add comments about ROM BAR updating
PCI: Remove pci_resource_bar() and pci_iov_resource_bar()
PCI: Separate VF BAR updates from standard BAR updates
x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic
igb: add i211 to i210 PHY workaround
igb: Workaround for igb i210 firmware issue
xen: do not re-use pirq number cached in pci device msi msg data
xfs: clear _XBF_PAGES from buffers when readahead page
USB: usbtmc: add missing endpoint sanity check
nl80211: fix dumpit error path RTNL deadlocks
xfs: fix up xfs_swap_extent_forks inline extent handling
xfs: don't allow di_size with high bit set
libceph: don't set weight to IN when OSD is destroyed
raid10: increment write counter after bio is split
cpufreq: Restore policy min/max limits on CPU online
ARM: dts: at91: sama5d2: add dma properties to UART nodes
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
iommu/vt-d: Fix NULL pointer dereference in device_to_iommu
xen/acpi: upload PM state from init-domain to Xen
mmc: sdhci: Do not disable interrupts while waiting for clock
ext4: mark inode dirty after converting inline directory
parport: fix attempt to write duplicate procfiles
iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
iio: adc: ti_am335x_adc: fix fifo overrun recovery
mmc: ushc: fix NULL-deref at probe
uwb: hwa-rc: fix NULL-deref at probe
uwb: i1480-dfu: fix NULL-deref at probe
usb: hub: Fix crash after failure to read BOS descriptor
usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
USB: wusbcore: fix NULL-deref at probe
USB: idmouse: fix NULL-deref at probe
USB: lvtest: fix NULL-deref at probe
USB: uss720: fix NULL-deref at probe
usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
ACM gadget: fix endianness in notifications
USB: serial: qcserial: add Dell DW5811e
USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
ALSA: hda - Adding a group of pin definition to fix headset problem
ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call
ALSA: seq: Fix racy cell insertions during snd_seq_pool_done()
Input: sur40 - validate number of endpoints before using them
Input: kbtab - validate number of endpoints before using them
Input: cm109 - validate number of endpoints before using them
Input: yealink - validate number of endpoints before using them
Input: hanwang - validate number of endpoints before using them
Input: ims-pcu - validate number of endpoints before using them
Input: iforce - validate number of endpoints before using them
Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
tcp: initialize icsk_ack.lrcvtime at session start time
socket, bpf: fix sk_filter use after free in sk_clone_lock
ipv4: provide stronger user input validation in nl_fib_input()
net: bcmgenet: remove bcmgenet_internal_phy_setup()
net/mlx5e: Count LRO packets correctly
net/mlx5: Increase number of max QPs in default profile
net: unix: properly re-increment inflight counter of GC discarded candidates
amd-xgbe: Fix jumbo MTU processing on newer hardware
net: properly release sk_frag.page
net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled
net/openvswitch: Set the ipv6 source tunnel key address attribute correctly
Linux 4.4.57
ext4: fix fencepost in s_first_meta_bg validation
percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
gfs2: Avoid alignment hole in struct lm_lockname
isdn/gigaset: fix NULL-deref at probe
target: Fix VERIFY_16 handling in sbc_parse_cdb
scsi: libiscsi: add lock around task lists to fix list corruption regression
scsi: lpfc: Add shutdown method for kexec
target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export
md/raid1/10: fix potential deadlock
powerpc/boot: Fix zImage TOC alignment
cpufreq: Fix and clean up show_cpuinfo_cur_freq()
perf/core: Fix event inheritance on fork()
give up on gcc ilog2() constant optimizations
kernek/fork.c: allocate idle task for a CPU always on its local node
hv_netvsc: use skb_get_hash() instead of a homegrown implementation
tpm_tis: Use devm_free_irq not free_irq
drm/amdgpu: add missing irq.h include
s390/pci: fix use after free in dma_init
KVM: PPC: Book3S PR: Fix illegal opcode emulation
xen/qspinlock: Don't kick CPU if IRQ is not initialized
Drivers: hv: avoid vfree() on crash
Drivers: hv: balloon: don't crash when memory is added in non-sorted order
pinctrl: cherryview: Do not mask all interrupts in probe
ACPI / video: skip evaluating _DOD when it does not exist
cxlflash: Increase cmd_per_lun for better throughput
crypto: mcryptd - Fix load failure
crypto: cryptd - Assign statesize properly
crypto: ghash-clmulni - Fix load failure
USB: don't free bandwidth_mutex too early
usb: core: hub: hub_port_init lock controller instead of bus
ANDROID: sdcardfs: Fix style issues in macros
ANDROID: sdcardfs: Use seq_puts over seq_printf
ANDROID: sdcardfs: Use to kstrout
ANDROID: sdcardfs: Use pr_[...] instead of printk
ANDROID: sdcardfs: remove unneeded null check
ANDROID: sdcardfs: Fix style issues with comments
ANDROID: sdcardfs: Fix formatting
ANDROID: sdcardfs: correct order of descriptors
fix the deadlock in xt_qtaguid when enable DDEBUG
net: ipv6: Add sysctl for minimum prefix len acceptable in RIOs.
Linux 4.4.56
futex: Add missing error handling to FUTEX_REQUEUE_PI
futex: Fix potential use-after-free in FUTEX_REQUEUE_PI
x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm
x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y
fscrypto: lock inode while setting encryption policy
fscrypt: fix renaming and linking special files
net sched actions: decrement module reference count after table flush.
dccp: fix memory leak during tear-down of unsuccessful connection request
dccp/tcp: fix routing redirect race
bridge: drop netfilter fake rtable unconditionally
ipv6: avoid write to a possibly cloned skb
ipv6: make ECMP route replacement less greedy
mpls: Send route delete notifications when router module is unloaded
act_connmark: avoid crashing on malformed nlattrs with null parms
uapi: fix linux/packet_diag.h userspace compilation error
vrf: Fix use-after-free in vrf_xmit
dccp: fix use-after-free in dccp_feat_activate_values
net: fix socket refcounting in skb_complete_tx_timestamp()
net: fix socket refcounting in skb_complete_wifi_ack()
tcp: fix various issues for sockets morphing to listen state
dccp: Unlock sock before calling sk_free()
net: net_enable_timestamp() can be called from irq contexts
net: don't call strlen() on the user buffer in packet_bind_spkt()
l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
ipv4: mask tos for input route
vti6: return GRE_KEY for vti6
vxlan: correctly validate VXLAN ID against VXLAN_N_VID
netlink: remove mmapped netlink support
ANDROID: mmc: core: export emmc revision
BACKPORT: mmc: core: Export device lifetime information through sysfs
ANDROID: android-verity: do not compile as independent module
ANDROID: sched: fix duplicate sched_group_energy const specifiers
config: disable CONFIG_USELIB and CONFIG_FHANDLE
ANDROID: power: align wakeup_sources format
ANDROID: dm: android-verity: allow disable dm-verity for Treble VTS
uid_sys_stats: change to use rt_mutex
ANDROID: vfs: user permission2 in notify_change2
ANDROID: sdcardfs: Fix gid issue
ANDROID: sdcardfs: Use tabs instead of spaces in multiuser.h
ANDROID: sdcardfs: Remove uninformative prints
ANDROID: sdcardfs: move path_put outside of spinlock
ANDROID: sdcardfs: Use case insensitive hash function
ANDROID: sdcardfs: declare MODULE_ALIAS_FS
ANDROID: sdcardfs: Get the blocksize from the lower fs
ANDROID: sdcardfs: Use d_invalidate instead of drop_recurisve
ANDROID: sdcardfs: Switch to internal case insensitive compare
ANDROID: sdcardfs: Use spin_lock_nested
ANDROID: sdcardfs: Replace get/put with d_lock
ANDROID: sdcardfs: rate limit warning print
ANDROID: sdcardfs: Fix case insensitive lookup
ANDROID: uid_sys_stats: account for fsync syscalls
ANDROID: sched: add a counter to track fsync
ANDROID: uid_sys_stats: fix negative write bytes.
ANDROID: uid_sys_stats: allow writing same state
ANDROID: uid_sys_stats: rename uid_cputime.c to uid_sys_stats.c
ANDROID: uid_cputime: add per-uid IO usage accounting
DTB: Add EAS compatible Juno Energy model to 'juno.dts'
arm64: dts: juno: Add idle-states to device tree
ANDROID: Replace spaces by '_' for some android filesystem tracepoints.
usb: gadget: f_accessory: Fix for UsbAccessory clean unbind.
android: binder: move global binder state into context struct.
android: binder: add padding to binder_fd_array_object.
binder: use group leader instead of open thread
nf: IDLETIMER: Use fullsock when querying uid
nf: IDLETIMER: Fix use after free condition during work
ANDROID: dm: android-verity: fix table_make_digest() error handling
ANDROID: usb: gadget: function: Fix commenting style
cpufreq: interactive governor drops bits in time calculation
ANDROID: sdcardfs: support direct-IO (DIO) operations
ANDROID: sdcardfs: implement vm_ops->page_mkwrite
ANDROID: sdcardfs: Don't bother deleting freelist
ANDROID: sdcardfs: Add missing path_put
ANDROID: sdcardfs: Fix incorrect hash
ANDROID: ext4 crypto: Disables zeroing on truncation when there's no key
ANDROID: ext4: add a non-reversible key derivation method
ANDROID: ext4: allow encrypting filenames using HEH algorithm
ANDROID: arm64/crypto: add ARMv8-CE optimized poly_hash algorithm
ANDROID: crypto: heh - factor out poly_hash algorithm
ANDROID: crypto: heh - Add Hash-Encrypt-Hash (HEH) algorithm
ANDROID: crypto: gf128mul - Add ble multiplication functions
ANDROID: crypto: gf128mul - Refactor gf128 overflow macros and tables
UPSTREAM: crypto: gf128mul - Zero memory when freeing multiplication table
ANDROID: crypto: shash - Add crypto_grab_shash() and crypto_spawn_shash_alg()
ANDROID: crypto: allow blkcipher walks over ablkcipher data
UPSTREAM: arm/arm64: crypto: assure that ECB modes don't require an IV
ANDROID: Refactor fs readpage/write tracepoints.
ANDROID: export security_path_chown
Squashfs: optimize reading uncompressed data
Squashfs: implement .readpages()
Squashfs: replace buffer_head with BIO
Squashfs: refactor page_actor
Squashfs: remove the FILE_CACHE option
ANDROID: android-recommended.cfg: CONFIG_CPU_SW_DOMAIN_PAN=y
FROMLIST: 9p: fix a potential acl leak
BACKPORT: posix_acl: Clear SGID bit when setting file permissions
UPSTREAM: udp: properly support MSG_PEEK with truncated buffers
UPSTREAM: arm64: Allow hw watchpoint of length 3,5,6 and 7
BACKPORT: arm64: hw_breakpoint: Handle inexact watchpoint addresses
UPSTREAM: arm64: Allow hw watchpoint at varied offset from base address
BACKPORT: hw_breakpoint: Allow watchpoint of length 3,5,6 and 7
ANDROID: sdcardfs: Switch strcasecmp for internal call
ANDROID: sdcardfs: switch to full_name_hash and qstr
ANDROID: sdcardfs: Add GID Derivation to sdcardfs
ANDROID: sdcardfs: Remove redundant operation
ANDROID: sdcardfs: add support for user permission isolation
ANDROID: sdcardfs: Refactor configfs interface
ANDROID: sdcardfs: Allow non-owners to touch
ANDROID: binder: fix format specifier for type binder_size_t
ANDROID: fs: Export vfs_rmdir2
ANDROID: fs: Export free_fs_struct and set_fs_pwd
BACKPORT: Input: xpad - validate USB endpoint count during probe
BACKPORT: Input: xpad - fix oops when attaching an unknown Xbox One gamepad
ANDROID: mnt: remount should propagate to slaves of slaves
ANDROID: sdcardfs: Switch ->d_inode to d_inode()
ANDROID: sdcardfs: Fix locking issue with permision fix up
ANDROID: sdcardfs: Change magic value
ANDROID: sdcardfs: Use per mount permissions
ANDROID: sdcardfs: Add gid and mask to private mount data
ANDROID: sdcardfs: User new permission2 functions
ANDROID: vfs: Add setattr2 for filesystems with per mount permissions
ANDROID: vfs: Add permission2 for filesystems with per mount permissions
ANDROID: vfs: Allow filesystems to access their private mount data
ANDROID: mnt: Add filesystem private data to mount points
ANDROID: sdcardfs: Move directory unlock before touch
ANDROID: sdcardfs: fix external storage exporting incorrect uid
ANDROID: sdcardfs: Added top to sdcardfs_inode_info
ANDROID: sdcardfs: Switch package list to RCU
ANDROID: sdcardfs: Fix locking for permission fix up
ANDROID: sdcardfs: Check for other cases on path lookup
ANDROID: sdcardfs: override umask on mkdir and create
arm64: kernel: Fix build warning
DEBUG: sched/fair: Fix sched_load_avg_cpu events for task_groups
DEBUG: sched/fair: Fix missing sched_load_avg_cpu events
UPSTREAM: l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()
UPSTREAM: packet: fix race condition in packet_set_ring
UPSTREAM: netlink: Fix dump skb leak/double free
UPSTREAM: net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
MIPS: Prevent "restoration" of MSA context in non-MSA kernels
net: socket: don't set sk_uid to garbage value in ->setattr()
ANDROID: configs: CONFIG_ARM64_SW_TTBR0_PAN=y
UPSTREAM: arm64: Disable PAN on uaccess_enable()
UPSTREAM: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN
UPSTREAM: arm64: xen: Enable user access before a privcmd hvc call
UPSTREAM: arm64: Handle faults caused by inadvertent user access with PAN enabled
BACKPORT: arm64: Disable TTBR0_EL1 during normal kernel execution
BACKPORT: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1
BACKPORT: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro
BACKPORT: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
UPSTREAM: arm64: alternative: add auto-nop infrastructure
UPSTREAM: arm64: barriers: introduce nops and __nops macros for NOP sequences
Revert "FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros"
Revert "FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro"
Revert "FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1"
Revert "FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution"
Revert "FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled"
Revert "FROMLIST: arm64: xen: Enable user access before a privcmd hvc call"
Revert "FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN"
ANDROID: sched/walt: fix build failure if FAIR_GROUP_SCHED=n
ANDROID: trace: net: use %pK for kernel pointers
ANDROID: android-base: Enable QUOTA related configs
net: ipv4: Don't crash if passing a null sk to ip_rt_update_pmtu.
net: inet: Support UID-based routing in IP protocols.
net: core: add UID to flows, rules, and routes
net: core: Add a UID field to struct sock.
Revert "net: core: Support UID-based routing."
UPSTREAM: efi/arm64: Don't apply MEMBLOCK_NOMAP to UEFI memory map mapping
UPSTREAM: arm64: mm: always take dirty state from new pte in ptep_set_access_flags
UPSTREAM: arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
UPSTREAM: arm64: Fix typo in the pmdp_huge_get_and_clear() definition
UPSTREAM: arm64: enable CONFIG_DEBUG_RODATA by default
goldfish: enable CONFIG_INET_DIAG_DESTROY
sched/walt: kill {min,max}_capacity
sched: fix wrong truncation of walt_avg
build: fix build config kernel_dir
ANDROID: dm verity: add minimum prefetch size
build: add build server configs for goldfish
usb: gadget: Fix compilation problem with tx_qlen field
Conflicts:
android/configs/android-base.cfg
arch/arm64/Makefile
arch/arm64/include/asm/cpufeature.h
arch/arm64/kernel/vdso/gettimeofday.S
arch/arm64/mm/cache.S
drivers/md/Kconfig
drivers/misc/Makefile
drivers/mmc/host/sdhci.c
drivers/usb/core/hcd.c
drivers/usb/gadget/function/u_ether.c
fs/sdcardfs/derived_perm.c
fs/sdcardfs/file.c
fs/sdcardfs/inode.c
fs/sdcardfs/lookup.c
fs/sdcardfs/main.c
fs/sdcardfs/multiuser.h
fs/sdcardfs/packagelist.c
fs/sdcardfs/sdcardfs.h
fs/sdcardfs/super.c
include/linux/mmc/card.h
include/linux/mmc/mmc.h
include/trace/events/android_fs.h
include/trace/events/android_fs_template.h
drivers/android/binder.c
fs/exec.c
fs/ext4/crypto_key.c
fs/ext4/ext4.h
fs/ext4/inline.c
fs/ext4/inode.c
fs/ext4/readpage.c
fs/f2fs/data.c
fs/f2fs/inline.c
fs/mpage.c
include/linux/dcache.h
include/trace/events/sched.h
include/uapi/linux/ipv6.h
net/ipv4/tcp_ipv4.c
net/netfilter/xt_IDLETIMER.c
Change-Id: Ie345db6a14869fe0aa794aef4b71b5d0d503690b
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.59:
xfrm: policy: init locks early
xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL replay_window
xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size harder
virtio_balloon: init 1st buffer in stats vq
pinctrl: qcom: Don't clear status bit on irq_unmask
c6x/ptrace: Remove useless PTRACE_SETREGSET implementation
h8300/ptrace: Fix incorrect register transfer count
mips/ptrace: Preserve previous registers for short regset write
sparc/ptrace: Preserve previous registers for short regset write
metag/ptrace: Preserve previous registers for short regset write
metag/ptrace: Provide default TXSTATUS for short NT_PRSTATUS
metag/ptrace: Reject partial NT_METAG_RPIPE writes
fscrypt: remove broken support for detecting keyring key revocation
sched/rt: Add a missing rescheduling point
Linux 4.4.59
Change-Id: Ifa35307b133cbf29d0a0084bb78a7b0436182b53
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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This implements:
https://tools.ietf.org/html/rfc7559
Backoff is performed according to RFC3315 section 14:
https://tools.ietf.org/html/rfc3315#section-14
We allow setting /proc/sys/net/ipv6/conf/*/router_solicitations
to a negative value meaning an unlimited number of retransmits,
and we make this the new default (inline with the RFC).
We also add a new setting:
/proc/sys/net/ipv6/conf/*/router_solicitation_max_interval
defaulting to 1 hour (per RFC recommendation).
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Acked-by: Erik Kline <ek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit bd11f0741fa5a2c296629898ad07759dd12b35bb in
DaveM's net-next/master, should make Linus' tree in 4.9-rc1)
Change-Id: Ia32cdc5c61481893ef8040734e014bf2229fc39e
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Changes in 4.4.48:
net/openvswitch: Set the ipv6 source tunnel key address attribute correctly
net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled
net: properly release sk_frag.page
amd-xgbe: Fix jumbo MTU processing on newer hardware
net: unix: properly re-increment inflight counter of GC discarded candidates
net/mlx5: Increase number of max QPs in default profile
net/mlx5e: Count LRO packets correctly
net: bcmgenet: remove bcmgenet_internal_phy_setup()
ipv4: provide stronger user input validation in nl_fib_input()
socket, bpf: fix sk_filter use after free in sk_clone_lock
tcp: initialize icsk_ack.lrcvtime at session start time
Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
Input: iforce - validate number of endpoints before using them
Input: ims-pcu - validate number of endpoints before using them
Input: hanwang - validate number of endpoints before using them
Input: yealink - validate number of endpoints before using them
Input: cm109 - validate number of endpoints before using them
Input: kbtab - validate number of endpoints before using them
Input: sur40 - validate number of endpoints before using them
ALSA: seq: Fix racy cell insertions during snd_seq_pool_done()
ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call
ALSA: hda - Adding a group of pin definition to fix headset problem
USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
USB: serial: qcserial: add Dell DW5811e
ACM gadget: fix endianness in notifications
usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
USB: uss720: fix NULL-deref at probe
USB: lvtest: fix NULL-deref at probe
USB: idmouse: fix NULL-deref at probe
USB: wusbcore: fix NULL-deref at probe
usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
usb: hub: Fix crash after failure to read BOS descriptor
uwb: i1480-dfu: fix NULL-deref at probe
uwb: hwa-rc: fix NULL-deref at probe
mmc: ushc: fix NULL-deref at probe
iio: adc: ti_am335x_adc: fix fifo overrun recovery
iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
parport: fix attempt to write duplicate procfiles
ext4: mark inode dirty after converting inline directory
mmc: sdhci: Do not disable interrupts while waiting for clock
xen/acpi: upload PM state from init-domain to Xen
iommu/vt-d: Fix NULL pointer dereference in device_to_iommu
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
ARM: dts: at91: sama5d2: add dma properties to UART nodes
cpufreq: Restore policy min/max limits on CPU online
raid10: increment write counter after bio is split
libceph: don't set weight to IN when OSD is destroyed
xfs: don't allow di_size with high bit set
xfs: fix up xfs_swap_extent_forks inline extent handling
nl80211: fix dumpit error path RTNL deadlocks
USB: usbtmc: add missing endpoint sanity check
xfs: clear _XBF_PAGES from buffers when readahead page
xen: do not re-use pirq number cached in pci device msi msg data
igb: Workaround for igb i210 firmware issue
igb: add i211 to i210 PHY workaround
x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic
PCI: Separate VF BAR updates from standard BAR updates
PCI: Remove pci_resource_bar() and pci_iov_resource_bar()
PCI: Add comments about ROM BAR updating
PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE
PCI: Don't update VF BARs while VF memory space is enabled
PCI: Update BARs using property bits appropriate for type
PCI: Ignore BAR updates on virtual functions
PCI: Do any VF BAR updates before enabling the BARs
vfio/spapr: Postpone allocation of userspace version of TCE table
block: allow WRITE_SAME commands with the SG_IO ioctl
s390/zcrypt: Introduce CEX6 toleration
uvcvideo: uvc_scan_fallback() for webcams with broken chain
ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
ACPI / blacklist: Make Dell Latitude 3350 ethernet work
serial: 8250_pci: Detach low-level driver during PCI error recovery
fbcon: Fix vc attr at deinit
crypto: algif_hash - avoid zero-sized array
Linux 4.4.58
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit ea90e0dc8cecba6359b481e24d9c37160f6f524f upstream.
Sowmini pointed out Dmitry's RTNL deadlock report to me, and it turns out
to be perfectly accurate - there are various error paths that miss unlock
of the RTNL.
To fix those, change the locking a bit to not be conditional in all those
nl80211_prepare_*_dump() functions, but make those require the RTNL to
start with, and fix the buggy error paths. This also let me use sparse
(by appropriately overriding the rtnl_lock/rtnl_unlock functions) to
validate the changes.
Reported-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b581a5854eee4b7851dedb0f8c2ceb54fb902c06 upstream.
Since ceph.git commit 4e28f9e63644 ("osd/OSDMap: clear osd_info,
osd_xinfo on osd deletion"), weight is set to IN when OSD is deleted.
This changes the result of applying an incremental for clients, not
just OSDs. Because CRUSH computations are obviously affected,
pre-4e28f9e63644 servers disagree with post-4e28f9e63644 clients on
object placement, resulting in misdirected requests.
Mirrors ceph.git commit a6009d1039a55e2c77f431662b3d6cc5a8e8e63f.
Fixes: 930c53286977 ("libceph: apply new_state before new_up_client on incrementals")
Link: http://tracker.ceph.com/issues/19122
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 15bb7745e94a665caf42bfaabf0ce062845b533b ]
icsk_ack.lrcvtime has a 0 value at socket creation time.
tcpi_last_data_recv can have bogus value if no payload is ever received.
This patch initializes icsk_ack.lrcvtime for active sessions
in tcp_finish_connect(), and for passive sessions in
tcp_create_openreq_child()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@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 a97e50cc4cb67e1e7bff56f6b41cda62ca832336 ]
In sk_clone_lock(), we create a new socket and inherit most of the
parent's members via sock_copy() which memcpy()'s various sections.
Now, in case the parent socket had a BPF socket filter attached,
then newsk->sk_filter points to the same instance as the original
sk->sk_filter.
sk_filter_charge() is then called on the newsk->sk_filter to take a
reference and should that fail due to hitting max optmem, we bail
out and release the newsk instance.
The issue is that commit 278571baca2a ("net: filter: simplify socket
charging") wrongly combined the dismantle path with the failure path
of xfrm_sk_clone_policy(). This means, even when charging failed, we
call sk_free_unlock_clone() on the newsk, which then still points to
the same sk_filter as the original sk.
Thus, sk_free_unlock_clone() calls into __sk_destruct() eventually
where it tests for present sk_filter and calls sk_filter_uncharge()
on it, which potentially lets sk_omem_alloc wrap around and releases
the eBPF prog and sk_filter structure from the (still intact) parent.
Fix it by making sure that when sk_filter_charge() failed, we reset
newsk->sk_filter back to NULL before passing to sk_free_unlock_clone(),
so that we don't mess with the parents sk_filter.
Only if xfrm_sk_clone_policy() fails, we did reach the point where
either the parent's filter was NULL and as a result newsk's as well
or where we previously had a successful sk_filter_charge(), thus for
that case, we do need sk_filter_uncharge() to release the prior taken
reference on sk_filter.
Fixes: 278571baca2a ("net: filter: simplify socket charging")
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit c64c0b3cac4c5b8cb093727d2c19743ea3965c0b ]
Alexander reported a KMSAN splat caused by reads of uninitialized
field (tb_id_in) from user provided struct fib_result_nl
It turns out nl_fib_input() sanity tests on user input is a bit
wrong :
User can pretend nlh->nlmsg_len is big enough, but provide
at sendmsg() time a too small buffer.
Reported-by: Alexander Potapenko <glider@google.com>
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 7df9c24625b9981779afb8fcdbe2bb4765e61147 ]
Dmitry has reported that a BUG_ON() condition in unix_notinflight()
may be triggered by a simple code that forwards unix socket in an
SCM_RIGHTS message.
That is caused by incorrect unix socket GC implementation in unix_gc().
The GC first collects list of candidates, then (a) decrements their
"children's" inflight counter, (b) checks which inflight counters are
now 0, and then (c) increments all inflight counters back.
(a) and (c) are done by calling scan_children() with inc_inflight or
dec_inflight as the second argument.
Commit 6209344f5a37 ("net: unix: fix inflight counting bug in garbage
collector") changed scan_children() such that it no longer considers
sockets that do not have UNIX_GC_CANDIDATE flag. It also added a block
of code that that unsets this flag _before_ invoking
scan_children(, dec_iflight, ). This may lead to incorrect inflight
counters for some sockets.
This change fixes this bug by changing order of operations:
UNIX_GC_CANDIDATE is now unset only after all inflight counters are
restored to the original state.
kernel BUG at net/unix/garbage.c:149!
RIP: 0010:[<ffffffff8717ebf4>] [<ffffffff8717ebf4>]
unix_notinflight+0x3b4/0x490 net/unix/garbage.c:149
Call Trace:
[<ffffffff8716cfbf>] unix_detach_fds.isra.19+0xff/0x170 net/unix/af_unix.c:1487
[<ffffffff8716f6a9>] unix_destruct_scm+0xf9/0x210 net/unix/af_unix.c:1496
[<ffffffff86a90a01>] skb_release_head_state+0x101/0x200 net/core/skbuff.c:655
[<ffffffff86a9808a>] skb_release_all+0x1a/0x60 net/core/skbuff.c:668
[<ffffffff86a980ea>] __kfree_skb+0x1a/0x30 net/core/skbuff.c:684
[<ffffffff86a98284>] kfree_skb+0x184/0x570 net/core/skbuff.c:705
[<ffffffff871789d5>] unix_release_sock+0x5b5/0xbd0 net/unix/af_unix.c:559
[<ffffffff87179039>] unix_release+0x49/0x90 net/unix/af_unix.c:836
[<ffffffff86a694b2>] sock_release+0x92/0x1f0 net/socket.c:570
[<ffffffff86a6962b>] sock_close+0x1b/0x20 net/socket.c:1017
[<ffffffff81a76b8e>] __fput+0x34e/0x910 fs/file_table.c:208
[<ffffffff81a771da>] ____fput+0x1a/0x20 fs/file_table.c:244
[<ffffffff81483ab0>] task_work_run+0x1a0/0x280 kernel/task_work.c:116
[< inline >] exit_task_work include/linux/task_work.h:21
[<ffffffff8141287a>] do_exit+0x183a/0x2640 kernel/exit.c:828
[<ffffffff8141383e>] do_group_exit+0x14e/0x420 kernel/exit.c:931
[<ffffffff814429d3>] get_signal+0x663/0x1880 kernel/signal.c:2307
[<ffffffff81239b45>] do_signal+0xc5/0x2190 arch/x86/kernel/signal.c:807
[<ffffffff8100666a>] exit_to_usermode_loop+0x1ea/0x2d0
arch/x86/entry/common.c:156
[< inline >] prepare_exit_to_usermode arch/x86/entry/common.c:190
[<ffffffff81009693>] syscall_return_slowpath+0x4d3/0x570
arch/x86/entry/common.c:259
[<ffffffff881478e6>] entry_SYSCALL_64_fastpath+0xc4/0xc6
Link: https://lkml.org/lkml/2017/3/6/252
Signed-off-by: Andrey Ulanov <andreyu@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: 6209344 ("net: unix: fix inflight counting bug in garbage collector")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 22a0e18eac7a9e986fec76c60fa4a2926d1291e2 ]
I mistakenly added the code to release sk->sk_frag in
sk_common_release() instead of sk_destruct()
TCP sockets using sk->sk_allocation == GFP_ATOMIC do no call
sk_common_release() at close time, thus leaking one (order-3) page.
iSCSI is using such sockets.
Fixes: 5640f7685831 ("net: use a per task frag allocator")
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 3d20f1f7bd575d147ffa75621fa560eea0aec690 ]
When dealing with ipv6 source tunnel key address attribute
(OVS_TUNNEL_KEY_ATTR_IPV6_SRC) we are wrongly setting the tunnel
dst ip, fix that.
Fixes: 6b26ba3a7d95 ('openvswitch: netlink attributes for IPv6 tunneling')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Paul Blakey <paulb@mellanox.com>
Acked-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When DDEBUG is enabled, the prdebug_full_state() function will try to
recursively aquire the spinlock of sock_tag_list and causing deadlock. A
check statement is added before it aquire the spinlock to differentiate
the behavior depend on the caller of the function.
Bug: 36559739
Test: Compile and run test under system/extra/test/iptables/
Change-Id: Ie3397fbaa207e14fe214d47aaf5e8ca1f4a712ee
Signed-off-by: Chenbo Feng <fengc@google.com>
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This commit adds a new sysctl accept_ra_rt_info_min_plen that
defines the minimum acceptable prefix length of Route Information
Options. The new sysctl is intended to be used together with
accept_ra_rt_info_max_plen to configure a range of acceptable
prefix lengths. It is useful to prevent misconfigurations from
unintentionally blackholing too much of the IPv6 address space
(e.g., home routers announcing RIOs for fc00::/7, which is
incorrect).
[backport of net-next bbea124bc99df968011e76eba105fe964a4eceab]
Bug: 33333670
Test: net_test passes
Signed-off-by: Joel Scherpelz <jscherpelz@google.com>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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am: c10ffe988f
Change-Id: Ie90a3e257c06baeb2c1e8b190da986990a5c2e7c
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[ Upstream commit edb9d1bff4bbe19b8ae0e71b1f38732591a9eeb2 ]
When tc actions are loaded as a module and no actions have been installed,
flushing them would result in actions removed from the memory, but modules
reference count not being decremented, so that the modules would not be
unloaded.
Following is example with GACT action:
% sudo modprobe act_gact
% lsmod
Module Size Used by
act_gact 16384 0
%
% sudo tc actions ls action gact
%
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 1
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 2
% sudo rmmod act_gact
rmmod: ERROR: Module act_gact is in use
....
After the fix:
% lsmod
Module Size Used by
act_gact 16384 0
%
% sudo tc actions add action pass index 1
% sudo tc actions add action pass index 2
% sudo tc actions add action pass index 3
% lsmod
Module Size Used by
act_gact 16384 3
%
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 0
%
% sudo tc actions flush action gact
% lsmod
Module Size Used by
act_gact 16384 0
% sudo rmmod act_gact
% lsmod
Module Size Used by
%
Fixes: f97017cdefef ("net-sched: Fix actions flushing")
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 676fe97852
Change-Id: Ibf191dd00ac72ee187beff00a46be207778ea912
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[ Upstream commit 72ef9c4125c7b257e3a714d62d778ab46583d6a3 ]
This patch fixes a memory leak, which happens if the connection request
is not fulfilled between parsing the DCCP options and handling the SYN
(because e.g. the backlog is full), because we forgot to free the
list of ack vectors.
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 4ab956b561
Change-Id: I9cb352108500198e4d94eb8e08b53065e29e31d4
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[ Upstream commit 45caeaa5ac0b4b11784ac6f932c0ad4c6b67cda0 ]
As Eric Dumazet pointed out this also needs to be fixed in IPv6.
v2: Contains the IPv6 tcp/Ipv6 dccp patches as well.
We have seen a few incidents lately where a dst_enty has been freed
with a dangling TCP socket reference (sk->sk_dst_cache) pointing to that
dst_entry. If the conditions/timings are right a crash then ensues when the
freed dst_entry is referenced later on. A Common crashing back trace is:
#8 [] page_fault at ffffffff8163e648
[exception RIP: __tcp_ack_snd_check+74]
.
.
#9 [] tcp_rcv_established at ffffffff81580b64
#10 [] tcp_v4_do_rcv at ffffffff8158b54a
#11 [] tcp_v4_rcv at ffffffff8158cd02
#12 [] ip_local_deliver_finish at ffffffff815668f4
#13 [] ip_local_deliver at ffffffff81566bd9
#14 [] ip_rcv_finish at ffffffff8156656d
#15 [] ip_rcv at ffffffff81566f06
#16 [] __netif_receive_skb_core at ffffffff8152b3a2
#17 [] __netif_receive_skb at ffffffff8152b608
#18 [] netif_receive_skb at ffffffff8152b690
#19 [] vmxnet3_rq_rx_complete at ffffffffa015eeaf [vmxnet3]
#20 [] vmxnet3_poll_rx_only at ffffffffa015f32a [vmxnet3]
#21 [] net_rx_action at ffffffff8152bac2
#22 [] __do_softirq at ffffffff81084b4f
#23 [] call_softirq at ffffffff8164845c
#24 [] do_softirq at ffffffff81016fc5
#25 [] irq_exit at ffffffff81084ee5
#26 [] do_IRQ at ffffffff81648ff8
Of course it may happen with other NIC drivers as well.
It's found the freed dst_entry here:
224 static bool tcp_in_quickack_mode(struct sock *sk)↩
225 {↩
226 ▹ const struct inet_connection_sock *icsk = inet_csk(sk);↩
227 ▹ const struct dst_entry *dst = __sk_dst_get(sk);↩
228 ↩
229 ▹ return (dst && dst_metric(dst, RTAX_QUICKACK)) ||↩
230 ▹ ▹ (icsk->icsk_ack.quick && !icsk->icsk_ack.pingpong);↩
231 }↩
But there are other backtraces attributed to the same freed dst_entry in
netfilter code as well.
All the vmcores showed 2 significant clues:
- Remote hosts behind the default gateway had always been redirected to a
different gateway. A rtable/dst_entry will be added for that host. Making
more dst_entrys with lower reference counts. Making this more probable.
- All vmcores showed a postitive LockDroppedIcmps value, e.g:
LockDroppedIcmps 267
A closer look at the tcp_v4_err() handler revealed that do_redirect() will run
regardless of whether user space has the socket locked. This can result in a
race condition where the same dst_entry cached in sk->sk_dst_entry can be
decremented twice for the same socket via:
do_redirect()->__sk_dst_check()-> dst_release().
Which leads to the dst_entry being prematurely freed with another socket
pointing to it via sk->sk_dst_cache and a subsequent crash.
To fix this skip do_redirect() if usespace has the socket locked. Instead let
the redirect take place later when user space does not have the socket
locked.
The dccp/IPv6 code is very similar in this respect, so fixing it there too.
As Eric Garver pointed out the following commit now invalidates routes. Which
can set the dst->obsolete flag so that ipv4_dst_check() returns null and
triggers the dst_release().
Fixes: ceb3320610d6 ("ipv4: Kill routes during PMTU/redirect updates.")
Cc: Eric Garver <egarver@redhat.com>
Cc: Hannes Sowa <hsowa@redhat.com>
Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 56f9b9502f
Change-Id: I286db307416cce649790533419ec6a735bbcbb3d
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[ Upstream commit a13b2082ece95247779b9995c4e91b4246bed023 ]
Andreas reports kernel oops during rmmod of the br_netfilter module.
Hannes debugged the oops down to a NULL rt6info->rt6i_indev.
Problem is that br_netfilter has the nasty concept of adding a fake
rtable to skb->dst; this happens in a br_netfilter prerouting hook.
A second hook (in bridge LOCAL_IN) is supposed to remove these again
before the skb is handed up the stack.
However, on module unload hooks get unregistered which means an
skb could traverse the prerouting hook that attaches the fake_rtable,
while the 'fake rtable remove' hook gets removed from the hooklist
immediately after.
Fixes: 34666d467cbf1e2e3c7 ("netfilter: bridge: move br_netfilter out of the core")
Reported-by: Andreas Karis <akaris@redhat.com>
Debugged-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: aed728c38c
Change-Id: I7bbff2dcff94ea2804d3f21cd0341379332a47e6
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[ Upstream commit 79e49503efe53a8c51d8b695bedc8a346c5e4a87 ]
ip6_fragment, in case skb has a fraglist, checks if the
skb is cloned. If it is, it will move to the 'slow path' and allocates
new skbs for each fragment.
However, right before entering the slowpath loop, it updates the
nexthdr value of the last ipv6 extension header to NEXTHDR_FRAGMENT,
to account for the fragment header that will be inserted in the new
ipv6-fragment skbs.
In case original skb is cloned this munges nexthdr value of another
skb. Avoid this by doing the nexthdr update for each of the new fragment
skbs separately.
This was observed with tcpdump on a bridge device where netfilter ipv6
reassembly is active: tcpdump shows malformed fragment headers as
the l4 header (icmpv6, tcp, etc). is decoded as a fragment header.
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reported-by: Andreas Karis <akaris@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 5f8bc3856e
Change-Id: I6abea1ee369e3ae901dbb615991a112621da03f9
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[ Upstream commit 67e194007be08d071294456274dd53e0a04fdf90 ]
Commit 27596472473a ("ipv6: fix ECMP route replacement") introduced a
loop that removes all siblings of an ECMP route that is being
replaced. However, this loop doesn't stop when it has replaced
siblings, and keeps removing other routes with a higher metric.
We also end up triggering the WARN_ON after the loop, because after
this nsiblings < 0.
Instead, stop the loop when we have taken care of all routes with the
same metric as the route being replaced.
Reproducer:
===========
#!/bin/sh
ip netns add ns1
ip netns add ns2
ip -net ns1 link set lo up
for x in 0 1 2 ; do
ip link add veth$x netns ns2 type veth peer name eth$x netns ns1
ip -net ns1 link set eth$x up
ip -net ns2 link set veth$x up
done
ip -net ns1 -6 r a 2000::/64 nexthop via fe80::0 dev eth0 \
nexthop via fe80::1 dev eth1 nexthop via fe80::2 dev eth2
ip -net ns1 -6 r a 2000::/64 via fe80::42 dev eth0 metric 256
ip -net ns1 -6 r a 2000::/64 via fe80::43 dev eth0 metric 2048
echo "before replace, 3 routes"
ip -net ns1 -6 r | grep -v '^fe80\|^ff00'
echo
ip -net ns1 -6 r c 2000::/64 nexthop via fe80::4 dev eth0 \
nexthop via fe80::5 dev eth1 nexthop via fe80::6 dev eth2
echo "after replace, only 2 routes, metric 2048 is gone"
ip -net ns1 -6 r | grep -v '^fe80\|^ff00'
Fixes: 27596472473a ("ipv6: fix ECMP route replacement")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: b57955ea30
Change-Id: Ica14abfb917ddcf236459f3e6886234a9daac40b
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[ Upstream commit e37791ec1ad785b59022ae211f63a16189bacebf ]
When the mpls_router module is unloaded, mpls routes are deleted but
notifications are not sent to userspace leaving userspace caches
out of sync. Add the call to mpls_notify_route in mpls_net_exit as
routes are freed.
Fixes: 0189197f44160 ("mpls: Basic routing support")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 710fbeb3f5
Change-Id: Ie14c5fad2baf06f9d7669ef68b16023bd165af17
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[ Upstream commit 52491c7607c5527138095edf44c53169dc1ddb82 ]
tcf_connmark_init does not check in its configuration if TCA_CONNMARK_PARMS
is set, resulting in a null pointer dereference when trying to access it.
[501099.043007] BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
[501099.043039] IP: [<ffffffffc10c60fb>] tcf_connmark_init+0x8b/0x180 [act_connmark]
...
[501099.044334] Call Trace:
[501099.044345] [<ffffffffa47270e8>] ? tcf_action_init_1+0x198/0x1b0
[501099.044363] [<ffffffffa47271b0>] ? tcf_action_init+0xb0/0x120
[501099.044380] [<ffffffffa47250a4>] ? tcf_exts_validate+0xc4/0x110
[501099.044398] [<ffffffffc0f5fa97>] ? u32_set_parms+0xa7/0x270 [cls_u32]
[501099.044417] [<ffffffffc0f60bf0>] ? u32_change+0x680/0x87b [cls_u32]
[501099.044436] [<ffffffffa4725d1d>] ? tc_ctl_tfilter+0x4dd/0x8a0
[501099.044454] [<ffffffffa44a23a1>] ? security_capable+0x41/0x60
[501099.044471] [<ffffffffa470ca01>] ? rtnetlink_rcv_msg+0xe1/0x220
[501099.044490] [<ffffffffa470c920>] ? rtnl_newlink+0x870/0x870
[501099.044507] [<ffffffffa472cc61>] ? netlink_rcv_skb+0xa1/0xc0
[501099.044524] [<ffffffffa47073f4>] ? rtnetlink_rcv+0x24/0x30
[501099.044541] [<ffffffffa472c634>] ? netlink_unicast+0x184/0x230
[501099.044558] [<ffffffffa472c9d8>] ? netlink_sendmsg+0x2f8/0x3b0
[501099.044576] [<ffffffffa46d8880>] ? sock_sendmsg+0x30/0x40
[501099.044592] [<ffffffffa46d8e03>] ? SYSC_sendto+0xd3/0x150
[501099.044608] [<ffffffffa425fda1>] ? __do_page_fault+0x2d1/0x510
[501099.044626] [<ffffffffa47fbd7b>] ? system_call_fast_compare_end+0xc/0x9b
Fixes: 22a5dc0e5e3e ("net: sched: Introduce connmark action")
Signed-off-by: Étienne Noss <etienne.noss@wifirst.fr>
Signed-off-by: Victorien Molle <victorien.molle@wifirst.fr>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: d0ebde92fb
Change-Id: I80863cbb814b1486069ee311e3f8543c7d34b74a
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[ Upstream commit 62f8f4d9066c1c6f2474845d1ca7e2891f2ae3fd ]
Dmitry reported crashes in DCCP stack [1]
Problem here is that when I got rid of listener spinlock, I missed the
fact that DCCP stores a complex state in struct dccp_request_sock,
while TCP does not.
Since multiple cpus could access it at the same time, we need to add
protection.
[1]
BUG: KASAN: use-after-free in dccp_feat_activate_values+0x967/0xab0
net/dccp/feat.c:1541 at addr ffff88003713be68
Read of size 8 by task syz-executor2/8457
CPU: 2 PID: 8457 Comm: syz-executor2 Not tainted 4.10.0-rc7+ #127
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:15 [inline]
dump_stack+0x292/0x398 lib/dump_stack.c:51
kasan_object_err+0x1c/0x70 mm/kasan/report.c:162
print_address_description mm/kasan/report.c:200 [inline]
kasan_report_error mm/kasan/report.c:289 [inline]
kasan_report.part.1+0x20e/0x4e0 mm/kasan/report.c:311
kasan_report mm/kasan/report.c:332 [inline]
__asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:332
dccp_feat_activate_values+0x967/0xab0 net/dccp/feat.c:1541
dccp_create_openreq_child+0x464/0x610 net/dccp/minisocks.c:121
dccp_v6_request_recv_sock+0x1f6/0x1960 net/dccp/ipv6.c:457
dccp_check_req+0x335/0x5a0 net/dccp/minisocks.c:186
dccp_v6_rcv+0x69e/0x1d00 net/dccp/ipv6.c:711
ip6_input_finish+0x46d/0x17a0 net/ipv6/ip6_input.c:279
NF_HOOK include/linux/netfilter.h:257 [inline]
ip6_input+0xdb/0x590 net/ipv6/ip6_input.c:322
dst_input include/net/dst.h:507 [inline]
ip6_rcv_finish+0x289/0x890 net/ipv6/ip6_input.c:69
NF_HOOK include/linux/netfilter.h:257 [inline]
ipv6_rcv+0x12ec/0x23d0 net/ipv6/ip6_input.c:203
__netif_receive_skb_core+0x1ae5/0x3400 net/core/dev.c:4190
__netif_receive_skb+0x2a/0x170 net/core/dev.c:4228
process_backlog+0xe5/0x6c0 net/core/dev.c:4839
napi_poll net/core/dev.c:5202 [inline]
net_rx_action+0xe70/0x1900 net/core/dev.c:5267
__do_softirq+0x2fb/0xb7d kernel/softirq.c:284
do_softirq_own_stack+0x1c/0x30 arch/x86/entry/entry_64.S:902
</IRQ>
do_softirq.part.17+0x1e8/0x230 kernel/softirq.c:328
do_softirq kernel/softirq.c:176 [inline]
__local_bh_enable_ip+0x1f2/0x200 kernel/softirq.c:181
local_bh_enable include/linux/bottom_half.h:31 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:971 [inline]
ip6_finish_output2+0xbb0/0x23d0 net/ipv6/ip6_output.c:123
ip6_finish_output+0x302/0x960 net/ipv6/ip6_output.c:148
NF_HOOK_COND include/linux/netfilter.h:246 [inline]
ip6_output+0x1cb/0x8d0 net/ipv6/ip6_output.c:162
ip6_xmit+0xcdf/0x20d0 include/net/dst.h:501
inet6_csk_xmit+0x320/0x5f0 net/ipv6/inet6_connection_sock.c:179
dccp_transmit_skb+0xb09/0x1120 net/dccp/output.c:141
dccp_xmit_packet+0x215/0x760 net/dccp/output.c:280
dccp_write_xmit+0x168/0x1d0 net/dccp/output.c:362
dccp_sendmsg+0x79c/0xb10 net/dccp/proto.c:796
inet_sendmsg+0x164/0x5b0 net/ipv4/af_inet.c:744
sock_sendmsg_nosec net/socket.c:635 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:645
SYSC_sendto+0x660/0x810 net/socket.c:1687
SyS_sendto+0x40/0x50 net/socket.c:1655
entry_SYSCALL_64_fastpath+0x1f/0xc2
RIP: 0033:0x4458b9
RSP: 002b:00007f8ceb77bb58 EFLAGS: 00000282 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 00000000004458b9
RDX: 0000000000000023 RSI: 0000000020e60000 RDI: 0000000000000017
RBP: 00000000006e1b90 R08: 00000000200f9fe1 R09: 0000000000000020
R10: 0000000000008010 R11: 0000000000000282 R12: 00000000007080a8
R13: 0000000000000000 R14: 00007f8ceb77c9c0 R15: 00007f8ceb77c700
Object at ffff88003713be50, in cache kmalloc-64 size: 64
Allocated:
PID = 8446
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
save_stack+0x43/0xd0 mm/kasan/kasan.c:502
set_track mm/kasan/kasan.c:514 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:605
kmem_cache_alloc_trace+0x82/0x270 mm/slub.c:2738
kmalloc include/linux/slab.h:490 [inline]
dccp_feat_entry_new+0x214/0x410 net/dccp/feat.c:467
dccp_feat_push_change+0x38/0x220 net/dccp/feat.c:487
__feat_register_sp+0x223/0x2f0 net/dccp/feat.c:741
dccp_feat_propagate_ccid+0x22b/0x2b0 net/dccp/feat.c:949
dccp_feat_server_ccid_dependencies+0x1b3/0x250 net/dccp/feat.c:1012
dccp_make_response+0x1f1/0xc90 net/dccp/output.c:423
dccp_v6_send_response+0x4ec/0xc20 net/dccp/ipv6.c:217
dccp_v6_conn_request+0xaba/0x11b0 net/dccp/ipv6.c:377
dccp_rcv_state_process+0x51e/0x1650 net/dccp/input.c:606
dccp_v6_do_rcv+0x213/0x350 net/dccp/ipv6.c:632
sk_backlog_rcv include/net/sock.h:893 [inline]
__sk_receive_skb+0x36f/0xcc0 net/core/sock.c:479
dccp_v6_rcv+0xba5/0x1d00 net/dccp/ipv6.c:742
ip6_input_finish+0x46d/0x17a0 net/ipv6/ip6_input.c:279
NF_HOOK include/linux/netfilter.h:257 [inline]
ip6_input+0xdb/0x590 net/ipv6/ip6_input.c:322
dst_input include/net/dst.h:507 [inline]
ip6_rcv_finish+0x289/0x890 net/ipv6/ip6_input.c:69
NF_HOOK include/linux/netfilter.h:257 [inline]
ipv6_rcv+0x12ec/0x23d0 net/ipv6/ip6_input.c:203
__netif_receive_skb_core+0x1ae5/0x3400 net/core/dev.c:4190
__netif_receive_skb+0x2a/0x170 net/core/dev.c:4228
process_backlog+0xe5/0x6c0 net/core/dev.c:4839
napi_poll net/core/dev.c:5202 [inline]
net_rx_action+0xe70/0x1900 net/core/dev.c:5267
__do_softirq+0x2fb/0xb7d kernel/softirq.c:284
Freed:
PID = 15
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
save_stack+0x43/0xd0 mm/kasan/kasan.c:502
set_track mm/kasan/kasan.c:514 [inline]
kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:578
slab_free_hook mm/slub.c:1355 [inline]
slab_free_freelist_hook mm/slub.c:1377 [inline]
slab_free mm/slub.c:2954 [inline]
kfree+0xe8/0x2b0 mm/slub.c:3874
dccp_feat_entry_destructor.part.4+0x48/0x60 net/dccp/feat.c:418
dccp_feat_entry_destructor net/dccp/feat.c:416 [inline]
dccp_feat_list_pop net/dccp/feat.c:541 [inline]
dccp_feat_activate_values+0x57f/0xab0 net/dccp/feat.c:1543
dccp_create_openreq_child+0x464/0x610 net/dccp/minisocks.c:121
dccp_v6_request_recv_sock+0x1f6/0x1960 net/dccp/ipv6.c:457
dccp_check_req+0x335/0x5a0 net/dccp/minisocks.c:186
dccp_v6_rcv+0x69e/0x1d00 net/dccp/ipv6.c:711
ip6_input_finish+0x46d/0x17a0 net/ipv6/ip6_input.c:279
NF_HOOK include/linux/netfilter.h:257 [inline]
ip6_input+0xdb/0x590 net/ipv6/ip6_input.c:322
dst_input include/net/dst.h:507 [inline]
ip6_rcv_finish+0x289/0x890 net/ipv6/ip6_input.c:69
NF_HOOK include/linux/netfilter.h:257 [inline]
ipv6_rcv+0x12ec/0x23d0 net/ipv6/ip6_input.c:203
__netif_receive_skb_core+0x1ae5/0x3400 net/core/dev.c:4190
__netif_receive_skb+0x2a/0x170 net/core/dev.c:4228
process_backlog+0xe5/0x6c0 net/core/dev.c:4839
napi_poll net/core/dev.c:5202 [inline]
net_rx_action+0xe70/0x1900 net/core/dev.c:5267
__do_softirq+0x2fb/0xb7d kernel/softirq.c:284
Memory state around the buggy address:
ffff88003713bd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88003713bd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88003713be00: fc fc fc fc fc fc fc fc fc fc fb fb fb fb fb fb
^
Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: ec4d8692b7
Change-Id: Idc05607ffe99175575d7f07e3138e2f4496a5110
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[ Upstream commit 9ac25fc063751379cb77434fef9f3b088cd3e2f7 ]
TX skbs do not necessarily hold a reference on skb->sk->sk_refcnt
By the time TX completion happens, sk_refcnt might be already 0.
sock_hold()/sock_put() would then corrupt critical state, like
sk_wmem_alloc and lead to leaks or use after free.
Fixes: 62bccb8cdb69 ("net-timestamp: Make the clone operation stand-alone from phy timestamping")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 9e7683301b
Change-Id: I00fea5d105075ad526ca753b463f91bcd5db30d0
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[ Upstream commit dd4f10722aeb10f4f582948839f066bebe44e5fb ]
TX skbs do not necessarily hold a reference on skb->sk->sk_refcnt
By the time TX completion happens, sk_refcnt might be already 0.
sock_hold()/sock_put() would then corrupt critical state, like
sk_wmem_alloc.
Fixes: bf7fa551e0ce ("mac80211: Resolve sk_refcnt/sk_wmem_alloc issue in wifi ack path")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 2681a7853a
Change-Id: I9dd8b9c075e54c8b5fbff08ff06dcd74c7e56d4a
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[ Upstream commit 02b2faaf0af1d85585f6d6980e286d53612acfc2 ]
Dmitry Vyukov reported a divide by 0 triggered by syzkaller, exploiting
tcp_disconnect() path that was never really considered and/or used
before syzkaller ;)
I was not able to reproduce the bug, but it seems issues here are the
three possible actions that assumed they would never trigger on a
listener.
1) tcp_write_timer_handler
2) tcp_delack_timer_handler
3) MTU reduction
Only IPv6 MTU reduction was properly testing TCP_CLOSE and TCP_LISTEN
states from tcp_v6_mtu_reduced()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 9216632bf4
Change-Id: Id3dda6def7939123cc232d10fefcd0bb2b020ccc
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[ Upstream commit d5afb6f9b6bb2c57bd0c05e76e12489dc0d037d9 ]
The code where sk_clone() came from created a new socket and locked it,
but then, on the error path didn't unlock it.
This problem stayed there for a long while, till b0691c8ee7c2 ("net:
Unlock sock before calling sk_free()") fixed it, but unfortunately the
callers of sk_clone() (now sk_clone_locked()) were not audited and the
one in dccp_create_openreq_child() remained.
Now in the age of the syskaller fuzzer, this was finally uncovered, as
reported by Dmitry:
---- 8< ----
I've got the following report while running syzkaller fuzzer on
86292b33d4b7 ("Merge branch 'akpm' (patches from Andrew)")
[ BUG: held lock freed! ]
4.10.0+ #234 Not tainted
-------------------------
syz-executor6/6898 is freeing memory
ffff88006286cac0-ffff88006286d3b7, with a lock still held there!
(slock-AF_INET6){+.-...}, at: [<ffffffff8362c2c9>] spin_lock
include/linux/spinlock.h:299 [inline]
(slock-AF_INET6){+.-...}, at: [<ffffffff8362c2c9>]
sk_clone_lock+0x3d9/0x12c0 net/core/sock.c:1504
5 locks held by syz-executor6/6898:
#0: (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffff839a34b4>] lock_sock
include/net/sock.h:1460 [inline]
#0: (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffff839a34b4>]
inet_stream_connect+0x44/0xa0 net/ipv4/af_inet.c:681
#1: (rcu_read_lock){......}, at: [<ffffffff83bc1c2a>]
inet6_csk_xmit+0x12a/0x5d0 net/ipv6/inet6_connection_sock.c:126
#2: (rcu_read_lock){......}, at: [<ffffffff8369b424>] __skb_unlink
include/linux/skbuff.h:1767 [inline]
#2: (rcu_read_lock){......}, at: [<ffffffff8369b424>] __skb_dequeue
include/linux/skbuff.h:1783 [inline]
#2: (rcu_read_lock){......}, at: [<ffffffff8369b424>]
process_backlog+0x264/0x730 net/core/dev.c:4835
#3: (rcu_read_lock){......}, at: [<ffffffff83aeb5c0>]
ip6_input_finish+0x0/0x1700 net/ipv6/ip6_input.c:59
#4: (slock-AF_INET6){+.-...}, at: [<ffffffff8362c2c9>] spin_lock
include/linux/spinlock.h:299 [inline]
#4: (slock-AF_INET6){+.-...}, at: [<ffffffff8362c2c9>]
sk_clone_lock+0x3d9/0x12c0 net/core/sock.c:1504
Fix it just like was done by b0691c8ee7c2 ("net: Unlock sock before calling
sk_free()").
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170301153510.GE15145@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: a70c328597
Change-Id: I79a15d07b95126c554366c5b9c266cdb73e8f823
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[ Upstream commit 13baa00ad01bb3a9f893e3a08cbc2d072fc0c15d ]
It is now very clear that silly TCP listeners might play with
enabling/disabling timestamping while new children are added
to their accept queue.
Meaning net_enable_timestamp() can be called from BH context
while current state of the static key is not enabled.
Lets play safe and allow all contexts.
The work queue is scheduled only under the problematic cases,
which are the static key enable/disable transition, to not slow down
critical paths.
This extends and improves what we did in commit 5fa8bbda38c6 ("net: use
a work queue to defer net_disable_timestamp() work")
Fixes: b90e5794c5bd ("net: dont call jump_label_dec from irq context")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: f331d6445a
Change-Id: If72ad0b49abc6132a8e67dede206504aa3985da9
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[ Upstream commit 540e2894f7905538740aaf122bd8e0548e1c34a4 ]
KMSAN (KernelMemorySanitizer, a new error detection tool) reports use of
uninitialized memory in packet_bind_spkt():
Acked-by: Eric Dumazet <edumazet@google.com>
==================================================================
BUG: KMSAN: use of unitialized memory
CPU: 0 PID: 1074 Comm: packet Not tainted 4.8.0-rc6+ #1891
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
0000000000000000 ffff88006b6dfc08 ffffffff82559ae8 ffff88006b6dfb48
ffffffff818a7c91 ffffffff85b9c870 0000000000000092 ffffffff85b9c550
0000000000000000 0000000000000092 00000000ec400911 0000000000000002
Call Trace:
[< inline >] __dump_stack lib/dump_stack.c:15
[<ffffffff82559ae8>] dump_stack+0x238/0x290 lib/dump_stack.c:51
[<ffffffff818a6626>] kmsan_report+0x276/0x2e0 mm/kmsan/kmsan.c:1003
[<ffffffff818a783b>] __msan_warning+0x5b/0xb0
mm/kmsan/kmsan_instr.c:424
[< inline >] strlen lib/string.c:484
[<ffffffff8259b58d>] strlcpy+0x9d/0x200 lib/string.c:144
[<ffffffff84b2eca4>] packet_bind_spkt+0x144/0x230
net/packet/af_packet.c:3132
[<ffffffff84242e4d>] SYSC_bind+0x40d/0x5f0 net/socket.c:1370
[<ffffffff84242a22>] SyS_bind+0x82/0xa0 net/socket.c:1356
[<ffffffff8515991b>] entry_SYSCALL_64_fastpath+0x13/0x8f
arch/x86/entry/entry_64.o:?
chained origin: 00000000eba00911
[<ffffffff810bb787>] save_stack_trace+0x27/0x50
arch/x86/kernel/stacktrace.c:67
[< inline >] kmsan_save_stack_with_flags mm/kmsan/kmsan.c:322
[< inline >] kmsan_save_stack mm/kmsan/kmsan.c:334
[<ffffffff818a59f8>] kmsan_internal_chain_origin+0x118/0x1e0
mm/kmsan/kmsan.c:527
[<ffffffff818a7773>] __msan_set_alloca_origin4+0xc3/0x130
mm/kmsan/kmsan_instr.c:380
[<ffffffff84242b69>] SYSC_bind+0x129/0x5f0 net/socket.c:1356
[<ffffffff84242a22>] SyS_bind+0x82/0xa0 net/socket.c:1356
[<ffffffff8515991b>] entry_SYSCALL_64_fastpath+0x13/0x8f
arch/x86/entry/entry_64.o:?
origin description: ----address@SYSC_bind (origin=00000000eb400911)
==================================================================
(the line numbers are relative to 4.8-rc6, but the bug persists
upstream)
, when I run the following program as root:
=====================================
#include <string.h>
#include <sys/socket.h>
#include <netpacket/packet.h>
#include <net/ethernet.h>
int main() {
struct sockaddr addr;
memset(&addr, 0xff, sizeof(addr));
addr.sa_family = AF_PACKET;
int fd = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ALL));
bind(fd, &addr, sizeof(addr));
return 0;
}
=====================================
This happens because addr.sa_data copied from the userspace is not
zero-terminated, and copying it with strlcpy() in packet_bind_spkt()
results in calling strlen() on the kernel copy of that non-terminated
buffer.
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 2cd0afc64e
Change-Id: Ib7bcb274c63e13807b1e25f74b6018866e2d8eb1
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[ Upstream commit 51fb60eb162ab84c5edf2ae9c63cf0b878e5547e ]
l2tp_ip_backlog_recv may not return -1 if the packet gets dropped.
The return value is passed up to ip_local_deliver_finish, which treats
negative values as an IP protocol number for resubmission.
Signed-off-by: Paul Hüber <phueber@kernsp.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: 354f79125f
Change-Id: I39b7ce23fe7319187421d3e6f0cdd91b16d1fb8c
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[ Upstream commit 6e28099d38c0e50d62c1afc054e37e573adf3d21 ]
Restore the lost masking of TOS in input route code to
allow ip rules to match it properly.
Problem [1] noticed by Shmulik Ladkani <shmulik.ladkani@gmail.com>
[1] http://marc.info/?t=137331755300040&r=1&w=2
Fixes: 89aef8921bfb ("ipv4: Delete routing cache.")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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am: f1b3aae1f1
Change-Id: I62e249897c31124ca45296c2563c9e3d665e49fb
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