| Commit message (Collapse) | Author | Age |
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[ Upstream commit ba1cc08d9488c94cb8d94f545305688b72a2a300 ]
fib6_net_exit only frees the main and local tables. If another table was
created with fib6_alloc_table, we leak it when the netns is destroyed.
Fix this in the same way ip_fib_net_exit cleans up tables, by walking
through the whole hashtable of fib6_table's. We can get rid of the
special cases for local and main, since they're also part of the
hashtable.
Reproducer:
ip netns add x
ip -net x -6 rule add from 6003:1::/64 table 100
ip netns del x
Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: 58f09b78b730 ("[NETNS][IPV6] ip6_fib - make it per network namespace")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5a63643e583b6a9789d7a225ae076fb4e603991c ]
This reverts commit 1d6119baf0610f813eb9d9580eb4fd16de5b4ceb.
After reverting commit 6d7b857d541e ("net: use lib/percpu_counter API
for fragmentation mem accounting") then here is no need for this
fix-up patch. As percpu_counter is no longer used, it cannot
memory leak it any-longer.
Fixes: 6d7b857d541e ("net: use lib/percpu_counter API for fragmentation mem accounting")
Fixes: 1d6119baf061 ("net: fix percpu memory leaks")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.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 fb452a1aa3fd4034d7999e309c5466ff2d7005aa ]
This reverts commit 6d7b857d541ecd1d9bd997c97242d4ef94b19de2.
There is a bug in fragmentation codes use of the percpu_counter API,
that can cause issues on systems with many CPUs.
The frag_mem_limit() just reads the global counter (fbc->count),
without considering other CPUs can have upto batch size (130K) that
haven't been subtracted yet. Due to the 3MBytes lower thresh limit,
this become dangerous at >=24 CPUs (3*1024*1024/130000=24).
The correct API usage would be to use __percpu_counter_compare() which
does the right thing, and takes into account the number of (online)
CPUs and batch size, to account for this and call __percpu_counter_sum()
when needed.
We choose to revert the use of the lib/percpu_counter API for frag
memory accounting for several reasons:
1) On systems with CPUs > 24, the heavier fully locked
__percpu_counter_sum() is always invoked, which will be more
expensive than the atomic_t that is reverted to.
Given systems with more than 24 CPUs are becoming common this doesn't
seem like a good option. To mitigate this, the batch size could be
decreased and thresh be increased.
2) The add_frag_mem_limit+sub_frag_mem_limit pairs happen on the RX
CPU, before SKBs are pushed into sockets on remote CPUs. Given
NICs can only hash on L2 part of the IP-header, the NIC-RXq's will
likely be limited. Thus, a fair chance that atomic add+dec happen
on the same CPU.
Revert note that commit 1d6119baf061 ("net: fix percpu memory leaks")
removed init_frag_mem_limit() and instead use inet_frags_init_net().
After this revert, inet_frags_uninit_net() becomes empty.
Fixes: 6d7b857d541e ("net: use lib/percpu_counter API for fragmentation mem accounting")
Fixes: 1d6119baf061 ("net: fix percpu memory leaks")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-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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[ Upstream commit 499350a5a6e7512d9ed369ed63a4244b6536f4f8 ]
When tcp_disconnect() is called, inet_csk_delack_init() sets
icsk->icsk_ack.rcv_mss to 0.
This could potentially cause tcp_recvmsg() => tcp_cleanup_rbuf() =>
__tcp_select_window() call path to have division by 0 issue.
So this patch initializes rcv_mss to TCP_MIN_MSS instead of 0.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@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 4e587ea71bf924f7dac621f1351653bd41e446cb ]
Commit c5cff8561d2d adds rcu grace period before freeing fib6_node. This
generates a new sparse warning on rt->rt6i_node related code:
net/ipv6/route.c:1394:30: error: incompatible types in comparison
expression (different address spaces)
./include/net/ip6_fib.h:187:14: error: incompatible types in comparison
expression (different address spaces)
This commit adds "__rcu" tag for rt6i_node and makes sure corresponding
rcu API is used for it.
After this fix, sparse no longer generates the above warning.
Fixes: c5cff8561d2d ("ipv6: add rcu grace period before freeing fib6_node")
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.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 c5cff8561d2d0006e972bd114afd51f082fee77c ]
We currently keep rt->rt6i_node pointing to the fib6_node for the route.
And some functions make use of this pointer to dereference the fib6_node
from rt structure, e.g. rt6_check(). However, as there is neither
refcount nor rcu taken when dereferencing rt->rt6i_node, it could
potentially cause crashes as rt->rt6i_node could be set to NULL by other
CPUs when doing a route deletion.
This patch introduces an rcu grace period before freeing fib6_node and
makes sure the functions that dereference it takes rcu_read_lock().
Note: there is no "Fixes" tag because this bug was there in a very
early stage.
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.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 3de33e1ba0506723ab25734e098cf280ecc34756 ]
A packet length of exactly IPV6_MAXPLEN is allowed, we should
refuse parsing options only if the size is 64KiB or more.
While at it, remove one extra variable and one assignment which
were also introduced by the commit that introduced the size
check. Checking the sum 'offset + len' and only later adding
'len' to 'offset' doesn't provide any advantage over directly
summing to 'offset' and checking it.
Fixes: 6399f1fae4ec ("ipv6: avoid overflow of offset in ip6_find_1stfragopt")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* refs/heads/tmp-29d0b65
Linux 4.4.88
xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
NFS: Fix 2 use after free issues in the I/O code
ARM: 8692/1: mm: abort uaccess retries upon fatal signal
Bluetooth: Properly check L2CAP config option output buffer length
ALSA: msnd: Optimize / harden DSP and MIDI loops
locktorture: Fix potential memory leak with rw lock test
btrfs: resume qgroup rescan on rw remount
drm/bridge: adv7511: Re-write the i2c address before EDID probing
drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled
drm: adv7511: really enable interrupts for EDID detection
scsi: sg: recheck MMAP_IO request length with lock held
scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE
cs5536: add support for IDE controller variant
workqueue: Fix flag collision
drm/nouveau/pci/msi: disable MSI on big-endian platforms by default
mwifiex: correct channel stat buffer overflows
dlm: avoid double-free on error path in dlm_device_{register,unregister}
Bluetooth: Add support of 13d3:3494 RTL8723BE device
rtlwifi: rtl_pci_probe: Fix fail path of _rtl_pci_find_adapter
Input: trackpoint - assume 3 buttons when buttons detection fails
ath10k: fix memory leak in rx ring buffer allocation
intel_th: pci: Add Cannon Lake PCH-LP support
intel_th: pci: Add Cannon Lake PCH-H support
driver core: bus: Fix a potential double free
staging/rts5208: fix incorrect shift to extract upper nybble
USB: core: Avoid race of async_completed() w/ usbdev_release()
usb:xhci:Fix regression when ATI chipsets detected
usb: Add device quirk for Logitech HD Pro Webcam C920-C
USB: serial: option: add support for D-Link DWM-157 C1
usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
ANDROID: sdcardfs: Add missing break
ANDROID: Sdcardfs: Move gid derivation under flag
ANDROID: mnt: Fix freeing of mount data
drivers: cpufreq: checks to avoid kernel crash in cpufreq_interactive
ANDROID: Use sk_uid to replace uid get from socket file
ANDROID: nf: xt_qtaguid: fix handling for cases where tunnels are used.
Revert "ANDROID: Use sk_uid to replace uid get from socket file"
ANDROID: fiq_debugger: Fix minor bug in code
Conflicts:
drivers/cpufreq/cpufreq_interactive.c
drivers/net/wireless/ath/ath10k/core.c
drivers/staging/android/fiq_debugger/fiq_debugger.c
net/netfilter/xt_qtaguid.c
Change-Id: I49c67ff84d4bee0799691cc1ee0a023e2dd13e66
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.88
usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
USB: serial: option: add support for D-Link DWM-157 C1
usb: Add device quirk for Logitech HD Pro Webcam C920-C
usb:xhci:Fix regression when ATI chipsets detected
USB: core: Avoid race of async_completed() w/ usbdev_release()
staging/rts5208: fix incorrect shift to extract upper nybble
driver core: bus: Fix a potential double free
intel_th: pci: Add Cannon Lake PCH-H support
intel_th: pci: Add Cannon Lake PCH-LP support
ath10k: fix memory leak in rx ring buffer allocation
Input: trackpoint - assume 3 buttons when buttons detection fails
rtlwifi: rtl_pci_probe: Fix fail path of _rtl_pci_find_adapter
Bluetooth: Add support of 13d3:3494 RTL8723BE device
dlm: avoid double-free on error path in dlm_device_{register,unregister}
mwifiex: correct channel stat buffer overflows
drm/nouveau/pci/msi: disable MSI on big-endian platforms by default
workqueue: Fix flag collision
cs5536: add support for IDE controller variant
scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE
scsi: sg: recheck MMAP_IO request length with lock held
drm: adv7511: really enable interrupts for EDID detection
drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled
drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
drm/bridge: adv7511: Re-write the i2c address before EDID probing
btrfs: resume qgroup rescan on rw remount
locktorture: Fix potential memory leak with rw lock test
ALSA: msnd: Optimize / harden DSP and MIDI loops
Bluetooth: Properly check L2CAP config option output buffer length
ARM: 8692/1: mm: abort uaccess retries upon fatal signal
NFS: Fix 2 use after free issues in the I/O code
xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
Linux 4.4.88
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit e860d2c904d1a9f38a24eb44c9f34b8f915a6ea3 upstream.
Validate the output buffer length for L2CAP config requests and responses
to avoid overflowing the stack buffer used for building the option blocks.
Signed-off-by: Ben Seri <ben@armis.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Retrieve socket uid from the sk_uid field added to struct sk instead of
read it from sk->socket->file. It prevent the packet been dropped when
the socket file doesn't exist.
Bug: 37524657
Signed-off-by: Chenbo Feng <fengc@google.com>
Change-Id: Ic58239c1f9aa7e0eb1d4d1c09d40b845fd4e8e57
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* fix skb->dev vs par->in/out
When there is some forwarding going on, it introduces extra state
around devs associated with xt_action_param->in/out and sk_buff->dev.
E.g.
par->in and par->out are both set, or
skb->dev and par->out are both set (and different)
This would lead qtaguid to make the wrong assumption about the
direction and update the wrong device stats.
Now we rely more on par->in/out.
* Fix handling when qtaguid is used as "owner"
When qtaguid is used as an owner module, and sk_socket->file is
not there (happens when tunnels are involved), it would
incorrectly do a tag stats update.
* Correct debug messages.
Bug: 11687690
Change-Id: I2b1ff8bd7131969ce9e25f8291d83a6280b3ba7f
CRs-Fixed: 747810
Signed-off-by: JP Abgrall <jpa@google.com>
Git-commit: 2b71479d6f5fe8f33b335f713380f72037244395
Git-repo: https://www.codeaurora.org/cgit/quic/la/kernel/mediatek
[imaund@codeaurora.org: Resolved trivial context conflicts.]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
[bflowers@codeaurora.org: Resolved merge conflicts]
Signed-off-by: Bryse Flowers <bflowers@codeaurora.org>
Signed-off-by: Chenbo Feng <fengc@google.com>
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This reverts commit 623f33f213deb39994decbdc7d3b8cea82c4d558.
Bug: 37524657
Change-Id: I214dbf417e720c032d28d62b8a74ece5de9cd919
Signed-off-by: Chenbo Feng <fengc@google.com>
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* refs/heads/tmp-a8935c9:
Linux 4.4.87
crypto: algif_skcipher - only call put_page on referenced and used pages
epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove()
kvm: arm/arm64: Force reading uncached stage2 PGD
kvm: arm/arm64: Fix race in resetting stage2 PGD
drm/ttm: Fix accounting error when fail to get pages for pool
xfrm: policy: check policy direction value
wl1251: add a missing spin_lock_init()
CIFS: remove endian related sparse warning
CIFS: Fix maximum SMB2 header size
alpha: uapi: Add support for __SANE_USERSPACE_TYPES__
cpuset: Fix incorrect memory_pressure control file mapping
cpumask: fix spurious cpumask_of_node() on non-NUMA multi-node configs
ceph: fix readpage from fscache
i2c: ismt: Return EMSGSIZE for block reads with bogus length
i2c: ismt: Don't duplicate the receive length for block reads
irqchip: mips-gic: SYNC after enabling GIC region
ANDROID: cpufreq-dt: Set sane defaults for schedutil rate limits
BACKPORT: cpufreq: schedutil: Use policy-dependent transition delays
FROMLIST: binder: fix an ret value override
FROMLIST: binder: fix memory corruption in binder_transaction binder
Linux 4.4.86
drm/i915: fix compiler warning in drivers/gpu/drm/i915/intel_uncore.c
scsi: sg: reset 'res_in_use' after unlinking reserved array
scsi: sg: protect accesses to 'reserved' page array
arm64: fpsimd: Prevent registers leaking across exec
x86/io: Add "memory" clobber to insb/insw/insl/outsb/outsw/outsl
arm64: mm: abort uaccess retries upon fatal signal
lpfc: Fix Device discovery failures during switch reboot test.
p54: memset(0) whole array
lightnvm: initialize ppa_addr in dev_to_generic_addr()
gcov: support GCC 7.1
gcov: add support for gcc version >= 6
i2c: jz4780: drop superfluous init
btrfs: remove duplicate const specifier
ALSA: au88x0: Fix zero clear of stream->resources
scsi: isci: avoid array subscript warning
sched: WALT: fix window mis-alignment
sched: EAS: kill incorrect nohz idle cpu kick
sched: EAS: fix incorrect energy delta calculation due to rounding error
sched: EAS/WALT: take into account of waking task's load
cpufreq: sched: WALT: don't apply capacity margin twice
sched: WALT: fix potential overflow
sched: EAS: schedfreq: fix CPU util over estimation
sched: EAS/WALT: use cr_avg instead of prev_runnable_sum
sched: WALT: fix broken cumulative runnable average accounting
sched: deadline: WALT: account cumulative runnable avg
FROMLIST: android: binder: Add page usage in binder stats
FROMLIST: android: binder: Add shrinker tracepoints
FROMLIST: android: binder: Add global lru shrinker to binder
FROMLIST: android: binder: Move buffer out of area shared with user space
FROMLIST: android: binder: Add allocator selftest
FROMLIST: android: binder: Refactor prev and next buffer into a helper function
android: android-base.config: enable IP6_NF_MATCH_RPFILTER
UPSTREAM: cpufreq: schedutil: Use unsigned int for iowait boost
UPSTREAM: cpufreq: schedutil: Make iowait boost more energy efficient
Conflicts:
drivers/cpufreq/cpufreq-dt.c
kernel/sched/deadline.c
kernel/sched/fair.c
kernel/sched/sched.h
Change-Id: Iee31db3fd1a0d1650ebf3d6de307a4e4637120b4
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.87
irqchip: mips-gic: SYNC after enabling GIC region
i2c: ismt: Don't duplicate the receive length for block reads
i2c: ismt: Return EMSGSIZE for block reads with bogus length
ceph: fix readpage from fscache
cpumask: fix spurious cpumask_of_node() on non-NUMA multi-node configs
cpuset: Fix incorrect memory_pressure control file mapping
alpha: uapi: Add support for __SANE_USERSPACE_TYPES__
CIFS: Fix maximum SMB2 header size
CIFS: remove endian related sparse warning
wl1251: add a missing spin_lock_init()
xfrm: policy: check policy direction value
drm/ttm: Fix accounting error when fail to get pages for pool
kvm: arm/arm64: Fix race in resetting stage2 PGD
kvm: arm/arm64: Force reading uncached stage2 PGD
epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove()
crypto: algif_skcipher - only call put_page on referenced and used pages
Linux 4.4.87
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 7bab09631c2a303f87a7eb7e3d69e888673b9b7e upstream.
The 'dir' parameter in xfrm_migrate() is a user-controlled byte which is used
as an array index. This can lead to an out-of-bound access, kernel lockup and
DoS. Add a check for the 'dir' value.
This fixes CVE-2017-11600.
References: https://bugzilla.redhat.com/show_bug.cgi?id=1474928
Fixes: 80c9abaabf42 ("[XFRM]: Extension for dynamic update of endpoint address(es)")
Reported-by: "bo Zhang" <zhangbo5891001@gmail.com>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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An out of bounds error was detected on an ARM64 target with
Android based kernel 4.9. This occurs while trying to
restore mark on a skb from an inet request socket.
BUG: KASAN: slab-out-of-bounds in socket_match.isra.2+0xc8/0x1f0 net/netfilter/xt_socket.c:248
Read of size 4 at addr ffffffc06a8d824c by task syz-fuzzer/1532
CPU: 7 PID: 1532 Comm: syz-fuzzer Tainted: G W O 4.9.41+ #1
Call trace:
[<ffffff900808d2f8>] dump_backtrace+0x0/0x440 arch/arm64/kernel/traps.c:76
[<ffffff900808d760>] show_stack+0x28/0x38 arch/arm64/kernel/traps.c:226
[<ffffff90085f7dc8>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffff90085f7dc8>] dump_stack+0xe4/0x134 lib/dump_stack.c:51
[<ffffff900830f358>] print_address_description+0x68/0x258 mm/kasan/report.c:248
[<ffffff900830f770>] kasan_report_error mm/kasan/report.c:347 [inline]
[<ffffff900830f770>] kasan_report.part.2+0x228/0x2f0 mm/kasan/report.c:371
[<ffffff900830fdec>] kasan_report+0x5c/0x70 mm/kasan/report.c:372
[<ffffff900830de98>] check_memory_region_inline mm/kasan/kasan.c:308 [inline]
[<ffffff900830de98>] __asan_load4+0x88/0xa0 mm/kasan/kasan.c:740
[<ffffff90097498f8>] socket_match.isra.2+0xc8/0x1f0 net/netfilter/xt_socket.c:248
[<ffffff9009749a5c>] socket_mt4_v1_v2_v3+0x3c/0x48 net/netfilter/xt_socket.c:272
[<ffffff90097f7e4c>] ipt_do_table+0x54c/0xad8 net/ipv4/netfilter/ip_tables.c:311
[<ffffff90097fcf14>] iptable_mangle_hook+0x6c/0x220 net/ipv4/netfilter/iptable_mangle.c:90
...
Allocated by task 1532:
save_stack_trace_tsk+0x0/0x2a0 arch/arm64/kernel/stacktrace.c:131
save_stack_trace+0x28/0x38 arch/arm64/kernel/stacktrace.c:215
save_stack mm/kasan/kasan.c:495 [inline]
set_track mm/kasan/kasan.c:507 [inline]
kasan_kmalloc+0xd8/0x188 mm/kasan/kasan.c:599
kasan_slab_alloc+0x14/0x20 mm/kasan/kasan.c:537
slab_post_alloc_hook mm/slab.h:417 [inline]
slab_alloc_node mm/slub.c:2728 [inline]
slab_alloc mm/slub.c:2736 [inline]
kmem_cache_alloc+0x14c/0x2e8 mm/slub.c:2741
reqsk_alloc include/net/request_sock.h:87 [inline]
inet_reqsk_alloc+0x4c/0x238 net/ipv4/tcp_input.c:6236
tcp_conn_request+0x2b0/0xea8 net/ipv4/tcp_input.c:6341
tcp_v4_conn_request+0xe0/0x100 net/ipv4/tcp_ipv4.c:1256
tcp_rcv_state_process+0x384/0x18a8 net/ipv4/tcp_input.c:5926
tcp_v4_do_rcv+0x2f0/0x3e0 net/ipv4/tcp_ipv4.c:1430
tcp_v4_rcv+0x1278/0x1350 net/ipv4/tcp_ipv4.c:1709
ip_local_deliver_finish+0x174/0x3e0 net/ipv4/ip_input.c:216
CRs-Fixed: 2113103
Change-Id: I1e81238aa2b8abe768d460674978f554b6c3ca48
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Update upper bound of 5GHz channels for country MY from 5815 to 5835
Change-Id: Ib11cfa97316b90bc4ffb50420c84df187ff80a7f
CRs-Fixed: 2103994
Signed-off-by: Will Huang <wilhuang@codeaurora.org>
Signed-off-by: Ashish Kumar Dhanotiya <adhanoti@codeaurora.org>
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Update max tx power of country BZ/IN/KN/PA/TT/UZ/VE
Update max bandwidth of country CA
Add country GI/IQ
Remove channel 14 of country JP
Change-Id: Iacbb07b222d1c15e9109d8bbfac797fd889444a0
CRs-Fixed: 2094357
Signed-off-by: Will Huang <wilhuang@codeaurora.org>
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While trying an ESP transport mode encryption for UDPv6 packets of
datagram size 1436 with MTU 1500, checksum error was observed in
the secondary fragment.
This error occurs due to the UDP payload checksum being missed out
when computing the full checksum for these packets in
udp6_hwcsum_outgoing().
CRs-Fixed: 2087660
Change-Id: I8f9066a5fa731a7c81b6713dc93b1cf4824646f0
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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With support for new AKM suites (example FILS-SHA256), the KEK length
can now be more than NL80211_KEK_LEN and the KCK length can be zero.
Add changes in cfg80211 to specify the length of KEK, and make KCK
optional. Make NL80211_REKEY_DATA_KEK as NLA_BINARY to enforce a maximum
length check.
Also add macro CFG80211_REKEY_DATA_KEK_LEN to indicate support for
including KEK length in rekey data.
CRs-Fixed: 2087759
Change-Id: Ica8dbb8614e0a9c3905e125b4a5254e43821984e
Signed-off-by: Vidyullatha Kanchanapally <vidyullatha@codeaurora.org>
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Use NL80211_CMD_UPDATE_CONNECT_PARAMS to update new ERP information,
Association IEs and the Authentication type to driver / firmware which
will be used in subsequent roamings.
CRs-Fixed: 2087764
Change-Id: Ic296b66a39b9ceb8de992a9f37112439389946a2
Signed-off-by: Vidyullatha Kanchanapally <vidyullatha@codeaurora.org>
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* refs/heads/tmp-610af85
Linux 4.4.85
ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal
ACPI: ioapic: Clear on-stack resource before using it
ntb_transport: fix bug calculating num_qps_mw
ntb_transport: fix qp count bug
ASoC: rsnd: don't call update callback if it was NULL
ASoC: rsnd: ssi: 24bit data needs right-aligned settings
ASoC: rsnd: Add missing initialization of ADG req_rate
ASoC: rsnd: avoid pointless loop in rsnd_mod_interrupt()
ASoC: rsnd: disable SRC.out only when stop timing
ASoC: simple-card: don't fail if sysclk setting is not supported
staging: rtl8188eu: add RNX-N150NUB support
iio: hid-sensor-trigger: Fix the race with user space powering up sensors
iio: imu: adis16480: Fix acceleration scale factor for adis16480
ANDROID: binder: fix proc->tsk check.
binder: Use wake up hint for synchronous transactions.
binder: use group leader instead of open thread
Bluetooth: bnep: fix possible might sleep error in bnep_session
Bluetooth: cmtp: fix possible might sleep error in cmtp_session
Bluetooth: hidp: fix possible might sleep error in hidp_session_thread
perf/core: Fix group {cpu,task} validation
nfsd: Limit end of page list when decoding NFSv4 WRITE
cifs: return ENAMETOOLONG for overlong names in cifs_open()/cifs_lookup()
cifs: Fix df output for users with quota limits
tracing: Fix freeing of filter in create_filter() when set_str is false
drm: rcar-du: Fix H/V sync signal polarity configuration
drm: rcar-du: Fix display timing controller parameter
drm: rcar-du: Fix crash in encoder failure error path
drm: rcar-du: lvds: Rename PLLEN bit to PLLON
drm: rcar-du: lvds: Fix PLL frequency-related configuration
drm/atomic: If the atomic check fails, return its value first
drm: Release driver tracking before making the object available again
i2c: designware: Fix system suspend
ARCv2: PAE40: Explicitly set MSB counterpart of SLC region ops addresses
ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)
ALSA: core: Fix unexpected error at replacing user TLV
Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310
Input: trackpoint - add new trackpoint firmware ID
mei: me: add lewisburg device ids
mei: me: add broxton pci device ids
net_sched: fix order of queue length updates in qdisc_replace()
net: sched: fix NULL pointer dereference when action calls some targets
irda: do not leak initialized list.dev to userspace
tcp: when rearming RTO, if RTO time is in past then fire RTO ASAP
ipv6: repair fib6 tree in failure case
ipv6: reset fn->rr_ptr when replacing route
tipc: fix use-after-free
sctp: fully initialize the IPv6 address in sctp_v6_to_addr()
ipv4: better IP_MAX_MTU enforcement
net_sched/sfq: update hierarchical backlog when drop packet
ipv4: fix NULL dereference in free_fib_info_rcu()
dccp: defer ccid_hc_tx_delete() at dismantle time
dccp: purge write queue in dccp_destroy_sock()
af_key: do not use GFP_KERNEL in atomic contexts
ANDROID: NFC: st21nfca: Fix memory OOB and leak issues in connectivity events handler
Linux 4.4.84
usb: qmi_wwan: add D-Link DWM-222 device ID
usb: optimize acpi companion search for usb port devices
perf/x86: Fix LBR related crashes on Intel Atom
pids: make task_tgid_nr_ns() safe
Sanitize 'move_pages()' permission checks
irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
x86/asm/64: Clear AC on NMI entries
xen: fix bio vec merging
mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes
mm/mempolicy: fix use after free when calling get_mempolicy
ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset
ALSA: seq: 2nd attempt at fixing race creating a queue
Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB
Input: elan_i2c - add ELAN0608 to the ACPI table
crypto: x86/sha1 - Fix reads beyond the number of blocks passed
parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
audit: Fix use after free in audit_remove_watch_rule()
netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister
ANDROID: check dir value of xfrm_userpolicy_id
ANDROID: NFC: Fix possible memory corruption when handling SHDLC I-Frame commands
ANDROID: nfc: fdp: Fix possible buffer overflow in WCS4000 NFC driver
ANDROID: NFC: st21nfca: Fix out of bounds kernel access when handling ATR_REQ
UPSTREAM: usb: dwc3: gadget: don't send extra ZLP
BACKPORT: usb: dwc3: gadget: handle request->zero
ANDROID: usb: gadget: assign no-op request complete callbacks
ANDROID: usb: gadget: configfs: fix null ptr in android_disconnect
ANDROID: uid_sys_stats: Fix implicit declaration of get_cmdline()
uid_sys_stats: log task io with a debug flag
Linux 4.4.83
pinctrl: samsung: Remove bogus irq_[un]mask from resource management
pinctrl: sunxi: add a missing function of A10/A20 pinctrl driver
pnfs/blocklayout: require 64-bit sector_t
iio: adc: vf610_adc: Fix VALT selection value for REFSEL bits
usb:xhci:Add quirk for Certain failing HP keyboard on reset after resume
usb: quirks: Add no-lpm quirk for Moshi USB to Ethernet Adapter
usb: core: unlink urbs from the tail of the endpoint's urb_list
USB: Check for dropped connection before switching to full speed
uas: Add US_FL_IGNORE_RESIDUE for Initio Corporation INIC-3069
iio: light: tsl2563: use correct event code
iio: accel: bmc150: Always restore device to normal mode after suspend-resume
staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read
USB: hcd: Mark secondary HCD as dead if the primary one died
usb: musb: fix tx fifo flush handling again
USB: serial: pl2303: add new ATEN device id
USB: serial: cp210x: add support for Qivicon USB ZigBee dongle
USB: serial: option: add D-Link DWM-222 device ID
nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays
fuse: initialize the flock flag in fuse_file on allocation
iscsi-target: Fix iscsi_np reset hung task during parallel delete
iscsi-target: fix memory leak in iscsit_setup_text_cmd()
mm: ratelimit PFNs busy info message
cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
ANDROID: Use sk_uid to replace uid get from socket file
UPSTREAM: arm64: smp: Prevent raw_smp_processor_id() recursion
UPSTREAM: arm64: restore get_current() optimisation
ANDROID: arm64: Fix a copy-paste error in prior init_thread_info build fix
Conflicts:
drivers/misc/Kconfig
drivers/usb/dwc3/gadget.c
include/linux/sched.h
mm/migrate.c
net/netfilter/xt_qtaguid.c
Change-Id: I3a0107fcb5c7455114b316426c9d669bb871acd1
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.85
af_key: do not use GFP_KERNEL in atomic contexts
dccp: purge write queue in dccp_destroy_sock()
dccp: defer ccid_hc_tx_delete() at dismantle time
ipv4: fix NULL dereference in free_fib_info_rcu()
net_sched/sfq: update hierarchical backlog when drop packet
ipv4: better IP_MAX_MTU enforcement
sctp: fully initialize the IPv6 address in sctp_v6_to_addr()
tipc: fix use-after-free
ipv6: reset fn->rr_ptr when replacing route
ipv6: repair fib6 tree in failure case
tcp: when rearming RTO, if RTO time is in past then fire RTO ASAP
irda: do not leak initialized list.dev to userspace
net: sched: fix NULL pointer dereference when action calls some targets
net_sched: fix order of queue length updates in qdisc_replace()
mei: me: add broxton pci device ids
mei: me: add lewisburg device ids
Input: trackpoint - add new trackpoint firmware ID
Input: elan_i2c - add ELAN0602 ACPI ID to support Lenovo Yoga310
ALSA: core: Fix unexpected error at replacing user TLV
ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)
ARCv2: PAE40: Explicitly set MSB counterpart of SLC region ops addresses
i2c: designware: Fix system suspend
drm: Release driver tracking before making the object available again
drm/atomic: If the atomic check fails, return its value first
drm: rcar-du: lvds: Fix PLL frequency-related configuration
drm: rcar-du: lvds: Rename PLLEN bit to PLLON
drm: rcar-du: Fix crash in encoder failure error path
drm: rcar-du: Fix display timing controller parameter
drm: rcar-du: Fix H/V sync signal polarity configuration
tracing: Fix freeing of filter in create_filter() when set_str is false
cifs: Fix df output for users with quota limits
cifs: return ENAMETOOLONG for overlong names in cifs_open()/cifs_lookup()
nfsd: Limit end of page list when decoding NFSv4 WRITE
perf/core: Fix group {cpu,task} validation
Bluetooth: hidp: fix possible might sleep error in hidp_session_thread
Bluetooth: cmtp: fix possible might sleep error in cmtp_session
Bluetooth: bnep: fix possible might sleep error in bnep_session
binder: use group leader instead of open thread
binder: Use wake up hint for synchronous transactions.
ANDROID: binder: fix proc->tsk check.
iio: imu: adis16480: Fix acceleration scale factor for adis16480
iio: hid-sensor-trigger: Fix the race with user space powering up sensors
staging: rtl8188eu: add RNX-N150NUB support
ASoC: simple-card: don't fail if sysclk setting is not supported
ASoC: rsnd: disable SRC.out only when stop timing
ASoC: rsnd: avoid pointless loop in rsnd_mod_interrupt()
ASoC: rsnd: Add missing initialization of ADG req_rate
ASoC: rsnd: ssi: 24bit data needs right-aligned settings
ASoC: rsnd: don't call update callback if it was NULL
ntb_transport: fix qp count bug
ntb_transport: fix bug calculating num_qps_mw
ACPI: ioapic: Clear on-stack resource before using it
ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal
Linux 4.4.85
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 25717382c1dd0ddced2059053e3ca5088665f7a5 upstream.
It looks like bnep_session has same pattern as the issue reported in
old rfcomm:
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
if (condition)
break;
// may call might_sleep here
schedule();
}
__set_current_state(TASK_RUNNING);
Which fixed at:
dfb2fae Bluetooth: Fix nested sleeps
So let's fix it at the same way, also follow the suggestion of:
https://lwn.net/Articles/628628/
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: AL Yu-Chen Cho <acho@suse.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f06d977309d09253c744e54e75c5295ecc52b7b4 upstream.
It looks like cmtp_session has same pattern as the issue reported in
old rfcomm:
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
if (condition)
break;
// may call might_sleep here
schedule();
}
__set_current_state(TASK_RUNNING);
Which fixed at:
dfb2fae Bluetooth: Fix nested sleeps
So let's fix it at the same way, also follow the suggestion of:
https://lwn.net/Articles/628628/
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: AL Yu-Chen Cho <acho@suse.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5da8e47d849d3d37b14129f038782a095b9ad049 upstream.
It looks like hidp_session_thread has same pattern as the issue reported in
old rfcomm:
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
if (condition)
break;
// may call might_sleep here
schedule();
}
__set_current_state(TASK_RUNNING);
Which fixed at:
dfb2fae Bluetooth: Fix nested sleeps
So let's fix it at the same way, also follow the suggestion of:
https://lwn.net/Articles/628628/
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Tested-by: AL Yu-Chen Cho <acho@suse.com>
Tested-by: Rohit Vaswani <rvaswani@nvidia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 4f8a881acc9d1adaf1e552349a0b1df28933a04c ]
As we know in some target's checkentry it may dereference par.entryinfo
to check entry stuff inside. But when sched action calls xt_check_target,
par.entryinfo is set with NULL. It would cause kernel panic when calling
some targets.
It can be reproduce with:
# tc qd add dev eth1 ingress handle ffff:
# tc filter add dev eth1 parent ffff: u32 match u32 0 0 action xt \
-j ECN --ecn-tcp-remove
It could also crash kernel when using target CLUSTERIP or TPROXY.
By now there's no proper value for par.entryinfo in ipt_init_target,
but it can not be set with NULL. This patch is to void all these
panics by setting it with an ipt_entry obj with all members = 0.
Note that this issue has been there since the very beginning.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
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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[ Upstream commit b024d949a3c24255a7ef1a470420eb478949aa4c ]
list.dev has not been initialized and so the copy_to_user is copying
data from the stack back to user space which is a potential
information leak. Fix this ensuring all of list is initialized to
zero.
Detected by CoverityScan, CID#1357894 ("Uninitialized scalar variable")
Signed-off-by: Colin Ian King <colin.king@canonical.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 cdbeb633ca71a02b7b63bfeb94994bf4e1a0b894 ]
In some situations tcp_send_loss_probe() can realize that it's unable
to send a loss probe (TLP), and falls back to calling tcp_rearm_rto()
to schedule an RTO timer. In such cases, sometimes tcp_rearm_rto()
realizes that the RTO was eligible to fire immediately or at some
point in the past (delta_us <= 0). Previously in such cases
tcp_rearm_rto() was scheduling such "overdue" RTOs to happen at now +
icsk_rto, which caused needless delays of hundreds of milliseconds
(and non-linear behavior that made reproducible testing
difficult). This commit changes the logic to schedule "overdue" RTOs
ASAP, rather than at now + icsk_rto.
Fixes: 6ba8a3b19e76 ("tcp: Tail loss probe (TLP)")
Suggested-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@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 348a4002729ccab8b888b38cbc099efa2f2a2036 ]
In fib6_add(), it is possible that fib6_add_1() picks an intermediate
node and sets the node's fn->leaf to NULL in order to add this new
route. However, if fib6_add_rt2node() fails to add the new
route for some reason, fn->leaf will be left as NULL and could
potentially cause crash when fn->leaf is accessed in fib6_locate().
This patch makes sure fib6_repair_tree() is called to properly repair
fn->leaf in the above failure case.
Here is the syzkaller reported general protection fault in fib6_locate:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Modules linked in:
CPU: 0 PID: 40937 Comm: syz-executor3 Not tainted
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d7d64100 ti: ffff8801d01a0000 task.ti: ffff8801d01a0000
RIP: 0010:[<ffffffff82a3e0e1>] [<ffffffff82a3e0e1>] __ipv6_prefix_equal64_half include/net/ipv6.h:475 [inline]
RIP: 0010:[<ffffffff82a3e0e1>] [<ffffffff82a3e0e1>] ipv6_prefix_equal include/net/ipv6.h:492 [inline]
RIP: 0010:[<ffffffff82a3e0e1>] [<ffffffff82a3e0e1>] fib6_locate_1 net/ipv6/ip6_fib.c:1210 [inline]
RIP: 0010:[<ffffffff82a3e0e1>] [<ffffffff82a3e0e1>] fib6_locate+0x281/0x3c0 net/ipv6/ip6_fib.c:1233
RSP: 0018:ffff8801d01a36a8 EFLAGS: 00010202
RAX: 0000000000000020 RBX: ffff8801bc790e00 RCX: ffffc90002983000
RDX: 0000000000001219 RSI: ffff8801d01a37a0 RDI: 0000000000000100
RBP: ffff8801d01a36f0 R08: 00000000000000ff R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8801d01a37a0 R15: 0000000000000000
FS: 00007f6afd68c700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004c6340 CR3: 00000000ba41f000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
ffff8801d01a37a8 ffff8801d01a3780 ffffed003a0346f5 0000000c82a23ea0
ffff8800b7bd7700 ffff8801d01a3780 ffff8800b6a1c940 ffffffff82a23ea0
ffff8801d01a3920 ffff8801d01a3748 ffffffff82a223d6 ffff8801d7d64988
Call Trace:
[<ffffffff82a223d6>] ip6_route_del+0x106/0x570 net/ipv6/route.c:2109
[<ffffffff82a23f9d>] inet6_rtm_delroute+0xfd/0x100 net/ipv6/route.c:3075
[<ffffffff82621359>] rtnetlink_rcv_msg+0x549/0x7a0 net/core/rtnetlink.c:3450
[<ffffffff8274c1d1>] netlink_rcv_skb+0x141/0x370 net/netlink/af_netlink.c:2281
[<ffffffff82613ddf>] rtnetlink_rcv+0x2f/0x40 net/core/rtnetlink.c:3456
[<ffffffff8274ad38>] netlink_unicast_kernel net/netlink/af_netlink.c:1206 [inline]
[<ffffffff8274ad38>] netlink_unicast+0x518/0x750 net/netlink/af_netlink.c:1232
[<ffffffff8274b83e>] netlink_sendmsg+0x8ce/0xc30 net/netlink/af_netlink.c:1778
[<ffffffff82564aff>] sock_sendmsg_nosec net/socket.c:609 [inline]
[<ffffffff82564aff>] sock_sendmsg+0xcf/0x110 net/socket.c:619
[<ffffffff82564d62>] sock_write_iter+0x222/0x3a0 net/socket.c:834
[<ffffffff8178523d>] new_sync_write+0x1dd/0x2b0 fs/read_write.c:478
[<ffffffff817853f4>] __vfs_write+0xe4/0x110 fs/read_write.c:491
[<ffffffff81786c38>] vfs_write+0x178/0x4b0 fs/read_write.c:538
[<ffffffff817892a9>] SYSC_write fs/read_write.c:585 [inline]
[<ffffffff817892a9>] SyS_write+0xd9/0x1b0 fs/read_write.c:577
[<ffffffff82c71e32>] entry_SYSCALL_64_fastpath+0x12/0x17
Note: there is no "Fixes" tag as this seems to be a bug introduced
very early.
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-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 383143f31d7d3525a1dbff733d52fff917f82f15 ]
syzcaller reported the following use-after-free issue in rt6_select():
BUG: KASAN: use-after-free in rt6_select net/ipv6/route.c:755 [inline] at addr ffff8800bc6994e8
BUG: KASAN: use-after-free in ip6_pol_route.isra.46+0x1429/0x1470 net/ipv6/route.c:1084 at addr ffff8800bc6994e8
Read of size 4 by task syz-executor1/439628
CPU: 0 PID: 439628 Comm: syz-executor1 Not tainted 4.3.5+ #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
0000000000000000 ffff88018fe435b0 ffffffff81ca384d ffff8801d3588c00
ffff8800bc699380 ffff8800bc699500 dffffc0000000000 ffff8801d40a47c0
ffff88018fe435d8 ffffffff81735751 ffff88018fe43660 ffff8800bc699380
Call Trace:
[<ffffffff81ca384d>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffffff81ca384d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
sctp: [Deprecated]: syz-executor0 (pid 439615) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
[<ffffffff81735751>] kasan_object_err+0x21/0x70 mm/kasan/report.c:158
[<ffffffff817359c4>] print_address_description mm/kasan/report.c:196 [inline]
[<ffffffff817359c4>] kasan_report_error+0x1b4/0x4a0 mm/kasan/report.c:285
[<ffffffff81735d93>] kasan_report mm/kasan/report.c:305 [inline]
[<ffffffff81735d93>] __asan_report_load4_noabort+0x43/0x50 mm/kasan/report.c:325
[<ffffffff82a28e39>] rt6_select net/ipv6/route.c:755 [inline]
[<ffffffff82a28e39>] ip6_pol_route.isra.46+0x1429/0x1470 net/ipv6/route.c:1084
[<ffffffff82a28fb1>] ip6_pol_route_output+0x81/0xb0 net/ipv6/route.c:1203
[<ffffffff82ab0a50>] fib6_rule_action+0x1f0/0x680 net/ipv6/fib6_rules.c:95
[<ffffffff8265cbb6>] fib_rules_lookup+0x2a6/0x7a0 net/core/fib_rules.c:223
[<ffffffff82ab1430>] fib6_rule_lookup+0xd0/0x250 net/ipv6/fib6_rules.c:41
[<ffffffff82a22006>] ip6_route_output+0x1d6/0x2c0 net/ipv6/route.c:1224
[<ffffffff829e83d2>] ip6_dst_lookup_tail+0x4d2/0x890 net/ipv6/ip6_output.c:943
[<ffffffff829e889a>] ip6_dst_lookup_flow+0x9a/0x250 net/ipv6/ip6_output.c:1079
[<ffffffff82a9f7d8>] ip6_datagram_dst_update+0x538/0xd40 net/ipv6/datagram.c:91
[<ffffffff82aa0978>] __ip6_datagram_connect net/ipv6/datagram.c:251 [inline]
[<ffffffff82aa0978>] ip6_datagram_connect+0x518/0xe50 net/ipv6/datagram.c:272
[<ffffffff82aa1313>] ip6_datagram_connect_v6_only+0x63/0x90 net/ipv6/datagram.c:284
[<ffffffff8292f790>] inet_dgram_connect+0x170/0x1f0 net/ipv4/af_inet.c:564
[<ffffffff82565547>] SYSC_connect+0x1a7/0x2f0 net/socket.c:1582
[<ffffffff8256a649>] SyS_connect+0x29/0x30 net/socket.c:1563
[<ffffffff82c72032>] entry_SYSCALL_64_fastpath+0x12/0x17
Object at ffff8800bc699380, in cache ip6_dst_cache size: 384
The root cause of it is that in fib6_add_rt2node(), when it replaces an
existing route with the new one, it does not update fn->rr_ptr.
This commit resets fn->rr_ptr to NULL when it points to a route which is
replaced in fib6_add_rt2node().
Fixes: 27596472473a ("ipv6: fix ECMP route replacement")
Signed-off-by: Wei Wang <weiwan@google.com>
Acked-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 5bfd37b4de5c98e86b12bd13be5aa46c7484a125 ]
syszkaller reported use-after-free in tipc [1]
When msg->rep skb is freed, set the pointer to NULL,
so that caller does not free it again.
[1]
==================================================================
BUG: KASAN: use-after-free in skb_push+0xd4/0xe0 net/core/skbuff.c:1466
Read of size 8 at addr ffff8801c6e71e90 by task syz-executor5/4115
CPU: 1 PID: 4115 Comm: syz-executor5 Not tainted 4.13.0-rc4+ #32
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:52
print_address_description+0x73/0x250 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x24e/0x340 mm/kasan/report.c:409
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
skb_push+0xd4/0xe0 net/core/skbuff.c:1466
tipc_nl_compat_recv+0x833/0x18f0 net/tipc/netlink_compat.c:1209
genl_family_rcv_msg+0x7b7/0xfb0 net/netlink/genetlink.c:598
genl_rcv_msg+0xb2/0x140 net/netlink/genetlink.c:623
netlink_rcv_skb+0x216/0x440 net/netlink/af_netlink.c:2397
genl_rcv+0x28/0x40 net/netlink/genetlink.c:634
netlink_unicast_kernel net/netlink/af_netlink.c:1265 [inline]
netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1291
netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1854
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
sock_write_iter+0x31a/0x5d0 net/socket.c:898
call_write_iter include/linux/fs.h:1743 [inline]
new_sync_write fs/read_write.c:457 [inline]
__vfs_write+0x684/0x970 fs/read_write.c:470
vfs_write+0x189/0x510 fs/read_write.c:518
SYSC_write fs/read_write.c:565 [inline]
SyS_write+0xef/0x220 fs/read_write.c:557
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x4512e9
RSP: 002b:00007f3bc8184c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 00000000004512e9
RDX: 0000000000000020 RSI: 0000000020fdb000 RDI: 0000000000000006
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b5e76
R13: 00007f3bc8184b48 R14: 00000000004b5e86 R15: 0000000000000000
Allocated by task 4115:
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
kmem_cache_alloc_node+0x13d/0x750 mm/slab.c:3651
__alloc_skb+0xf1/0x740 net/core/skbuff.c:219
alloc_skb include/linux/skbuff.h:903 [inline]
tipc_tlv_alloc+0x26/0xb0 net/tipc/netlink_compat.c:148
tipc_nl_compat_dumpit+0xf2/0x3c0 net/tipc/netlink_compat.c:248
tipc_nl_compat_handle net/tipc/netlink_compat.c:1130 [inline]
tipc_nl_compat_recv+0x756/0x18f0 net/tipc/netlink_compat.c:1199
genl_family_rcv_msg+0x7b7/0xfb0 net/netlink/genetlink.c:598
genl_rcv_msg+0xb2/0x140 net/netlink/genetlink.c:623
netlink_rcv_skb+0x216/0x440 net/netlink/af_netlink.c:2397
genl_rcv+0x28/0x40 net/netlink/genetlink.c:634
netlink_unicast_kernel net/netlink/af_netlink.c:1265 [inline]
netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1291
netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1854
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
sock_write_iter+0x31a/0x5d0 net/socket.c:898
call_write_iter include/linux/fs.h:1743 [inline]
new_sync_write fs/read_write.c:457 [inline]
__vfs_write+0x684/0x970 fs/read_write.c:470
vfs_write+0x189/0x510 fs/read_write.c:518
SYSC_write fs/read_write.c:565 [inline]
SyS_write+0xef/0x220 fs/read_write.c:557
entry_SYSCALL_64_fastpath+0x1f/0xbe
Freed by task 4115:
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3503 [inline]
kmem_cache_free+0x77/0x280 mm/slab.c:3763
kfree_skbmem+0x1a1/0x1d0 net/core/skbuff.c:622
__kfree_skb net/core/skbuff.c:682 [inline]
kfree_skb+0x165/0x4c0 net/core/skbuff.c:699
tipc_nl_compat_dumpit+0x36a/0x3c0 net/tipc/netlink_compat.c:260
tipc_nl_compat_handle net/tipc/netlink_compat.c:1130 [inline]
tipc_nl_compat_recv+0x756/0x18f0 net/tipc/netlink_compat.c:1199
genl_family_rcv_msg+0x7b7/0xfb0 net/netlink/genetlink.c:598
genl_rcv_msg+0xb2/0x140 net/netlink/genetlink.c:623
netlink_rcv_skb+0x216/0x440 net/netlink/af_netlink.c:2397
genl_rcv+0x28/0x40 net/netlink/genetlink.c:634
netlink_unicast_kernel net/netlink/af_netlink.c:1265 [inline]
netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1291
netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1854
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
sock_write_iter+0x31a/0x5d0 net/socket.c:898
call_write_iter include/linux/fs.h:1743 [inline]
new_sync_write fs/read_write.c:457 [inline]
__vfs_write+0x684/0x970 fs/read_write.c:470
vfs_write+0x189/0x510 fs/read_write.c:518
SYSC_write fs/read_write.c:565 [inline]
SyS_write+0xef/0x220 fs/read_write.c:557
entry_SYSCALL_64_fastpath+0x1f/0xbe
The buggy address belongs to the object at ffff8801c6e71dc0
which belongs to the cache skbuff_head_cache of size 224
The buggy address is located 208 bytes inside of
224-byte region [ffff8801c6e71dc0, ffff8801c6e71ea0)
The buggy address belongs to the page:
page:ffffea00071b9c40 count:1 mapcount:0 mapping:ffff8801c6e71000 index:0x0
flags: 0x200000000000100(slab)
raw: 0200000000000100 ffff8801c6e71000 0000000000000000 000000010000000c
raw: ffffea0007224a20 ffff8801d98caf48 ffff8801d9e79040 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8801c6e71d80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
ffff8801c6e71e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8801c6e71e80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff8801c6e71f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8801c6e71f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.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 15339e441ec46fbc3bf3486bb1ae4845b0f1bb8d ]
KMSAN reported use of uninitialized sctp_addr->v4.sin_addr.s_addr and
sctp_addr->v6.sin6_scope_id in sctp_v6_cmp_addr() (see below).
Make sure all fields of an IPv6 address are initialized, which
guarantees that the IPv4 fields are also initialized.
==================================================================
BUG: KMSAN: use of uninitialized memory in sctp_v6_cmp_addr+0x8d4/0x9f0
net/sctp/ipv6.c:517
CPU: 2 PID: 31056 Comm: syz-executor1 Not tainted 4.11.0-rc5+ #2944
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
Call Trace:
dump_stack+0x172/0x1c0 lib/dump_stack.c:42
is_logbuf_locked mm/kmsan/kmsan.c:59 [inline]
kmsan_report+0x12a/0x180 mm/kmsan/kmsan.c:938
native_save_fl arch/x86/include/asm/irqflags.h:18 [inline]
arch_local_save_flags arch/x86/include/asm/irqflags.h:72 [inline]
arch_local_irq_save arch/x86/include/asm/irqflags.h:113 [inline]
__msan_warning_32+0x61/0xb0 mm/kmsan/kmsan_instr.c:467
sctp_v6_cmp_addr+0x8d4/0x9f0 net/sctp/ipv6.c:517
sctp_v6_get_dst+0x8c7/0x1630 net/sctp/ipv6.c:290
sctp_transport_route+0x101/0x570 net/sctp/transport.c:292
sctp_assoc_add_peer+0x66d/0x16f0 net/sctp/associola.c:651
sctp_sendmsg+0x35a5/0x4f90 net/sctp/socket.c:1871
inet_sendmsg+0x498/0x670 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg net/socket.c:643 [inline]
SYSC_sendto+0x608/0x710 net/socket.c:1696
SyS_sendto+0x8a/0xb0 net/socket.c:1664
entry_SYSCALL_64_fastpath+0x13/0x94
RIP: 0033:0x44b479
RSP: 002b:00007f6213f21c08 EFLAGS: 00000286 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 000000000044b479
RDX: 0000000000000041 RSI: 0000000020edd000 RDI: 0000000000000006
RBP: 00000000007080a8 R08: 0000000020b85fe4 R09: 000000000000001c
R10: 0000000000040005 R11: 0000000000000286 R12: 00000000ffffffff
R13: 0000000000003760 R14: 00000000006e5820 R15: 0000000000ff8000
origin description: ----dst_saddr@sctp_v6_get_dst
local variable created at:
sk_fullsock include/net/sock.h:2321 [inline]
inet6_sk include/linux/ipv6.h:309 [inline]
sctp_v6_get_dst+0x91/0x1630 net/sctp/ipv6.c:241
sctp_transport_route+0x101/0x570 net/sctp/transport.c:292
==================================================================
BUG: KMSAN: use of uninitialized memory in sctp_v6_cmp_addr+0x8d4/0x9f0
net/sctp/ipv6.c:517
CPU: 2 PID: 31056 Comm: syz-executor1 Not tainted 4.11.0-rc5+ #2944
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
Call Trace:
dump_stack+0x172/0x1c0 lib/dump_stack.c:42
is_logbuf_locked mm/kmsan/kmsan.c:59 [inline]
kmsan_report+0x12a/0x180 mm/kmsan/kmsan.c:938
native_save_fl arch/x86/include/asm/irqflags.h:18 [inline]
arch_local_save_flags arch/x86/include/asm/irqflags.h:72 [inline]
arch_local_irq_save arch/x86/include/asm/irqflags.h:113 [inline]
__msan_warning_32+0x61/0xb0 mm/kmsan/kmsan_instr.c:467
sctp_v6_cmp_addr+0x8d4/0x9f0 net/sctp/ipv6.c:517
sctp_v6_get_dst+0x8c7/0x1630 net/sctp/ipv6.c:290
sctp_transport_route+0x101/0x570 net/sctp/transport.c:292
sctp_assoc_add_peer+0x66d/0x16f0 net/sctp/associola.c:651
sctp_sendmsg+0x35a5/0x4f90 net/sctp/socket.c:1871
inet_sendmsg+0x498/0x670 net/ipv4/af_inet.c:762
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg net/socket.c:643 [inline]
SYSC_sendto+0x608/0x710 net/socket.c:1696
SyS_sendto+0x8a/0xb0 net/socket.c:1664
entry_SYSCALL_64_fastpath+0x13/0x94
RIP: 0033:0x44b479
RSP: 002b:00007f6213f21c08 EFLAGS: 00000286 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 000000000044b479
RDX: 0000000000000041 RSI: 0000000020edd000 RDI: 0000000000000006
RBP: 00000000007080a8 R08: 0000000020b85fe4 R09: 000000000000001c
R10: 0000000000040005 R11: 0000000000000286 R12: 00000000ffffffff
R13: 0000000000003760 R14: 00000000006e5820 R15: 0000000000ff8000
origin description: ----dst_saddr@sctp_v6_get_dst
local variable created at:
sk_fullsock include/net/sock.h:2321 [inline]
inet6_sk include/linux/ipv6.h:309 [inline]
sctp_v6_get_dst+0x91/0x1630 net/sctp/ipv6.c:241
sctp_transport_route+0x101/0x570 net/sctp/transport.c:292
==================================================================
Signed-off-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.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 c780a049f9bf442314335372c9abc4548bfe3e44 ]
While working on yet another syzkaller report, I found
that our IP_MAX_MTU enforcements were not properly done.
gcc seems to reload dev->mtu for min(dev->mtu, IP_MAX_MTU), and
final result can be bigger than IP_MAX_MTU :/
This is a problem because device mtu can be changed on other cpus or
threads.
While this patch does not fix the issue I am working on, it is
probably worth addressing it.
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 325d5dc3f7e7c2840b65e4a2988c082c2c0025c5 ]
When sfq_enqueue() drops head packet or packet from another queue it
have to update backlog at upper qdiscs too.
Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-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 187e5b3ac84d3421d2de3aca949b2791fbcad554 ]
If fi->fib_metrics could not be allocated in fib_create_info()
we attempt to dereference a NULL pointer in free_fib_info_rcu() :
m = fi->fib_metrics;
if (m != &dst_default_metrics && atomic_dec_and_test(&m->refcnt))
kfree(m);
Before my recent patch, we used to call kfree(NULL) and nothing wrong
happened.
Instead of using RCU to defer freeing while we are under memory stress,
it seems better to take immediate action.
This was reported by syzkaller team.
Fixes: 3fb07daff8e9 ("ipv4: add reference counting to metrics")
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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[ Upstream commit 120e9dabaf551c6dc03d3a10a1f026376cb1811c ]
syszkaller team reported another problem in DCCP [1]
Problem here is that the structure holding RTO timer
(ccid2_hc_tx_rto_expire() handler) is freed too soon.
We can not use del_timer_sync() to cancel the timer
since this timer wants to grab socket lock (that would risk a dead lock)
Solution is to defer the freeing of memory when all references to
the socket were released. Socket timers do own a reference, so this
should fix the issue.
[1]
==================================================================
BUG: KASAN: use-after-free in ccid2_hc_tx_rto_expire+0x51c/0x5c0 net/dccp/ccids/ccid2.c:144
Read of size 4 at addr ffff8801d2660540 by task kworker/u4:7/3365
CPU: 1 PID: 3365 Comm: kworker/u4:7 Not tainted 4.13.0-rc4+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound call_usermodehelper_exec_work
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:52
print_address_description+0x73/0x250 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x24e/0x340 mm/kasan/report.c:409
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:429
ccid2_hc_tx_rto_expire+0x51c/0x5c0 net/dccp/ccids/ccid2.c:144
call_timer_fn+0x233/0x830 kernel/time/timer.c:1268
expire_timers kernel/time/timer.c:1307 [inline]
__run_timers+0x7fd/0xb90 kernel/time/timer.c:1601
run_timer_softirq+0x21/0x80 kernel/time/timer.c:1614
__do_softirq+0x2f5/0xba3 kernel/softirq.c:284
invoke_softirq kernel/softirq.c:364 [inline]
irq_exit+0x1cc/0x200 kernel/softirq.c:405
exiting_irq arch/x86/include/asm/apic.h:638 [inline]
smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:1044
apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:702
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:824 [inline]
RIP: 0010:__raw_write_unlock_irq include/linux/rwlock_api_smp.h:267 [inline]
RIP: 0010:_raw_write_unlock_irq+0x56/0x70 kernel/locking/spinlock.c:343
RSP: 0018:ffff8801cd50eaa8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: dffffc0000000000 RBX: ffffffff85a090c0 RCX: 0000000000000006
RDX: 1ffffffff0b595f3 RSI: 1ffff1003962f989 RDI: ffffffff85acaf98
RBP: ffff8801cd50eab0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801cc96ea60
R13: dffffc0000000000 R14: ffff8801cc96e4c0 R15: ffff8801cc96e4c0
</IRQ>
release_task+0xe9e/0x1a40 kernel/exit.c:220
wait_task_zombie kernel/exit.c:1162 [inline]
wait_consider_task+0x29b8/0x33c0 kernel/exit.c:1389
do_wait_thread kernel/exit.c:1452 [inline]
do_wait+0x441/0xa90 kernel/exit.c:1523
kernel_wait4+0x1f5/0x370 kernel/exit.c:1665
SYSC_wait4+0x134/0x140 kernel/exit.c:1677
SyS_wait4+0x2c/0x40 kernel/exit.c:1673
call_usermodehelper_exec_sync kernel/kmod.c:286 [inline]
call_usermodehelper_exec_work+0x1a0/0x2c0 kernel/kmod.c:323
process_one_work+0xbf3/0x1bc0 kernel/workqueue.c:2097
worker_thread+0x223/0x1860 kernel/workqueue.c:2231
kthread+0x35e/0x430 kernel/kthread.c:231
ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:425
Allocated by task 21267:
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
kmem_cache_alloc+0x127/0x750 mm/slab.c:3561
ccid_new+0x20e/0x390 net/dccp/ccid.c:151
dccp_hdlr_ccid+0x27/0x140 net/dccp/feat.c:44
__dccp_feat_activate+0x142/0x2a0 net/dccp/feat.c:344
dccp_feat_activate_values+0x34e/0xa90 net/dccp/feat.c:1538
dccp_rcv_request_sent_state_process net/dccp/input.c:472 [inline]
dccp_rcv_state_process+0xed1/0x1620 net/dccp/input.c:677
dccp_v4_do_rcv+0xeb/0x160 net/dccp/ipv4.c:679
sk_backlog_rcv include/net/sock.h:911 [inline]
__release_sock+0x124/0x360 net/core/sock.c:2269
release_sock+0xa4/0x2a0 net/core/sock.c:2784
inet_wait_for_connect net/ipv4/af_inet.c:557 [inline]
__inet_stream_connect+0x671/0xf00 net/ipv4/af_inet.c:643
inet_stream_connect+0x58/0xa0 net/ipv4/af_inet.c:682
SYSC_connect+0x204/0x470 net/socket.c:1642
SyS_connect+0x24/0x30 net/socket.c:1623
entry_SYSCALL_64_fastpath+0x1f/0xbe
Freed by task 3049:
save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3503 [inline]
kmem_cache_free+0x77/0x280 mm/slab.c:3763
ccid_hc_tx_delete+0xc5/0x100 net/dccp/ccid.c:190
dccp_destroy_sock+0x1d1/0x2b0 net/dccp/proto.c:225
inet_csk_destroy_sock+0x166/0x3f0 net/ipv4/inet_connection_sock.c:833
dccp_done+0xb7/0xd0 net/dccp/proto.c:145
dccp_time_wait+0x13d/0x300 net/dccp/minisocks.c:72
dccp_rcv_reset+0x1d1/0x5b0 net/dccp/input.c:160
dccp_rcv_state_process+0x8fc/0x1620 net/dccp/input.c:663
dccp_v4_do_rcv+0xeb/0x160 net/dccp/ipv4.c:679
sk_backlog_rcv include/net/sock.h:911 [inline]
__sk_receive_skb+0x33e/0xc00 net/core/sock.c:521
dccp_v4_rcv+0xef1/0x1c00 net/dccp/ipv4.c:871
ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216
NF_HOOK include/linux/netfilter.h:248 [inline]
ip_local_deliver+0x1ce/0x6d0 net/ipv4/ip_input.c:257
dst_input include/net/dst.h:477 [inline]
ip_rcv_finish+0x8db/0x19c0 net/ipv4/ip_input.c:397
NF_HOOK include/linux/netfilter.h:248 [inline]
ip_rcv+0xc3f/0x17d0 net/ipv4/ip_input.c:488
__netif_receive_skb_core+0x19af/0x33d0 net/core/dev.c:4417
__netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4455
process_backlog+0x203/0x740 net/core/dev.c:5130
napi_poll net/core/dev.c:5527 [inline]
net_rx_action+0x792/0x1910 net/core/dev.c:5593
__do_softirq+0x2f5/0xba3 kernel/softirq.c:284
The buggy address belongs to the object at ffff8801d2660100
which belongs to the cache ccid2_hc_tx_sock of size 1240
The buggy address is located 1088 bytes inside of
1240-byte region [ffff8801d2660100, ffff8801d26605d8)
The buggy address belongs to the page:
page:ffffea0007499800 count:1 mapcount:0 mapping:ffff8801d2660100 index:0x0 compound_mapcount: 0
flags: 0x200000000008100(slab|head)
raw: 0200000000008100 ffff8801d2660100 0000000000000000 0000000100000005
raw: ffffea00075271a0 ffffea0007538820 ffff8801d3aef9c0 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8801d2660400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801d2660480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8801d2660500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8801d2660580: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
ffff8801d2660600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 7749d4ff88d31b0be17c8683143135adaaadc6a7 ]
syzkaller reported that DCCP could have a non empty
write queue at dismantle time.
WARNING: CPU: 1 PID: 2953 at net/core/stream.c:199 sk_stream_kill_queues+0x3ce/0x520 net/core/stream.c:199
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 2953 Comm: syz-executor0 Not tainted 4.13.0-rc4+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:52
panic+0x1e4/0x417 kernel/panic.c:180
__warn+0x1c4/0x1d9 kernel/panic.c:541
report_bug+0x211/0x2d0 lib/bug.c:183
fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:190
do_trap_no_signal arch/x86/kernel/traps.c:224 [inline]
do_trap+0x260/0x390 arch/x86/kernel/traps.c:273
do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:310
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:323
invalid_op+0x1e/0x30 arch/x86/entry/entry_64.S:846
RIP: 0010:sk_stream_kill_queues+0x3ce/0x520 net/core/stream.c:199
RSP: 0018:ffff8801d182f108 EFLAGS: 00010297
RAX: ffff8801d1144140 RBX: ffff8801d13cb280 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff85137b00 RDI: ffff8801d13cb280
RBP: ffff8801d182f148 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801d13cb4d0
R13: ffff8801d13cb3b8 R14: ffff8801d13cb300 R15: ffff8801d13cb3b8
inet_csk_destroy_sock+0x175/0x3f0 net/ipv4/inet_connection_sock.c:835
dccp_close+0x84d/0xc10 net/dccp/proto.c:1067
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:425
sock_release+0x8d/0x1e0 net/socket.c:597
sock_close+0x16/0x20 net/socket.c:1126
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:246
task_work_run+0x18a/0x260 kernel/task_work.c:116
exit_task_work include/linux/task_work.h:21 [inline]
do_exit+0xa32/0x1b10 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:969
get_signal+0x7e8/0x17e0 kernel/signal.c:2330
do_signal+0x94/0x1ee0 arch/x86/kernel/signal.c:808
exit_to_usermode_loop+0x21c/0x2d0 arch/x86/entry/common.c:157
prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
syscall_return_slowpath+0x3a7/0x450 arch/x86/entry/common.c:263
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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[ Upstream commit 36f41f8fc6d8aa9f8c9072d66ff7cf9055f5e69b ]
pfkey_broadcast() might be called from non process contexts,
we can not use GFP_KERNEL in these cases [1].
This patch partially reverts commit ba51b6be38c1 ("net: Fix RCU splat in
af_key"), only keeping the GFP_ATOMIC forcing under rcu_read_lock()
section.
[1] : syzkaller reported :
in_atomic(): 1, irqs_disabled(): 0, pid: 2932, name: syzkaller183439
3 locks held by syzkaller183439/2932:
#0: (&net->xfrm.xfrm_cfg_mutex){+.+.+.}, at: [<ffffffff83b43888>] pfkey_sendmsg+0x4c8/0x9f0 net/key/af_key.c:3649
#1: (&pfk->dump_lock){+.+.+.}, at: [<ffffffff83b467f6>] pfkey_do_dump+0x76/0x3f0 net/key/af_key.c:293
#2: (&(&net->xfrm.xfrm_policy_lock)->rlock){+...+.}, at: [<ffffffff83957632>] spin_lock_bh include/linux/spinlock.h:304 [inline]
#2: (&(&net->xfrm.xfrm_policy_lock)->rlock){+...+.}, at: [<ffffffff83957632>] xfrm_policy_walk+0x192/0xa30 net/xfrm/xfrm_policy.c:1028
CPU: 0 PID: 2932 Comm: syzkaller183439 Not tainted 4.13.0-rc4+ #24
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:52
___might_sleep+0x2b2/0x470 kernel/sched/core.c:5994
__might_sleep+0x95/0x190 kernel/sched/core.c:5947
slab_pre_alloc_hook mm/slab.h:416 [inline]
slab_alloc mm/slab.c:3383 [inline]
kmem_cache_alloc+0x24b/0x6e0 mm/slab.c:3559
skb_clone+0x1a0/0x400 net/core/skbuff.c:1037
pfkey_broadcast_one+0x4b2/0x6f0 net/key/af_key.c:207
pfkey_broadcast+0x4ba/0x770 net/key/af_key.c:281
dump_sp+0x3d6/0x500 net/key/af_key.c:2685
xfrm_policy_walk+0x2f1/0xa30 net/xfrm/xfrm_policy.c:1042
pfkey_dump_sp+0x42/0x50 net/key/af_key.c:2695
pfkey_do_dump+0xaa/0x3f0 net/key/af_key.c:299
pfkey_spddump+0x1a0/0x210 net/key/af_key.c:2722
pfkey_process+0x606/0x710 net/key/af_key.c:2814
pfkey_sendmsg+0x4d6/0x9f0 net/key/af_key.c:3650
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
___sys_sendmsg+0x755/0x890 net/socket.c:2035
__sys_sendmsg+0xe5/0x210 net/socket.c:2069
SYSC_sendmsg net/socket.c:2080 [inline]
SyS_sendmsg+0x2d/0x50 net/socket.c:2076
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x445d79
RSP: 002b:00007f32447c1dc8 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445d79
RDX: 0000000000000000 RSI: 000000002023dfc8 RDI: 0000000000000008
RBP: 0000000000000086 R08: 00007f32447c2700 R09: 00007f32447c2700
R10: 00007f32447c2700 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffe33edec4f R14: 00007f32447c29c0 R15: 0000000000000000
Fixes: ba51b6be38c1 ("net: Fix RCU splat in af_key")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: David Ahern <dsa@cumulusnetworks.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.84
netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister
audit: Fix use after free in audit_remove_watch_rule()
parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo
crypto: x86/sha1 - Fix reads beyond the number of blocks passed
Input: elan_i2c - add ELAN0608 to the ACPI table
Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB
ALSA: seq: 2nd attempt at fixing race creating a queue
ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset
ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
mm/mempolicy: fix use after free when calling get_mempolicy
mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes
xen: fix bio vec merging
x86/asm/64: Clear AC on NMI entries
irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup()
irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup()
Sanitize 'move_pages()' permission checks
pids: make task_tgid_nr_ns() safe
perf/x86: Fix LBR related crashes on Intel Atom
usb: optimize acpi companion search for usb port devices
usb: qmi_wwan: add D-Link DWM-222 device ID
Linux 4.4.84
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 9c3f3794926a997b1cab6c42480ff300efa2d162 upstream.
If one cpu is doing nf_ct_extend_unregister while another cpu is doing
__nf_ct_ext_add_length, then we may hit BUG_ON(t == NULL). Moreover,
there's no synchronize_rcu invocation after set nf_ct_ext_types[id] to
NULL, so it's possible that we may access invalid pointer.
But actually, most of the ct extends are built-in, so the problem listed
above will not happen. However, there are two exceptions: NF_CT_EXT_NAT
and NF_CT_EXT_SYNPROXY.
For _EXT_NAT, the panic will not happen, since adding the nat extend and
unregistering the nat extend are located in the same file(nf_nat_core.c),
this means that after the nat module is removed, we cannot add the nat
extend too.
For _EXT_SYNPROXY, synproxy extend may be added by init_conntrack, while
synproxy extend unregister will be done by synproxy_core_exit. So after
nf_synproxy_core.ko is removed, we may still try to add the synproxy
extend, then kernel panic may happen.
I know it's very hard to reproduce this issue, but I can play a tricky
game to make it happen very easily :)
Step 1. Enable SYNPROXY for tcp dport 1234 at FORWARD hook:
# iptables -I FORWARD -p tcp --dport 1234 -j SYNPROXY
Step 2. Queue the syn packet to the userspace at raw table OUTPUT hook.
Also note, in the userspace we only add a 20s' delay, then
reinject the syn packet to the kernel:
# iptables -t raw -I OUTPUT -p tcp --syn -j NFQUEUE --queue-num 1
Step 3. Using "nc 2.2.2.2 1234" to connect the server.
Step 4. Now remove the nf_synproxy_core.ko quickly:
# iptables -F FORWARD
# rmmod ipt_SYNPROXY
# rmmod nf_synproxy_core
Step 5. After 20s' delay, the syn packet is reinjected to the kernel.
Now you will see the panic like this:
kernel BUG at net/netfilter/nf_conntrack_extend.c:91!
Call Trace:
? __nf_ct_ext_add_length+0x53/0x3c0 [nf_conntrack]
init_conntrack+0x12b/0x600 [nf_conntrack]
nf_conntrack_in+0x4cc/0x580 [nf_conntrack]
ipv4_conntrack_local+0x48/0x50 [nf_conntrack_ipv4]
nf_reinject+0x104/0x270
nfqnl_recv_verdict+0x3e1/0x5f9 [nfnetlink_queue]
? nfqnl_recv_verdict+0x5/0x5f9 [nfnetlink_queue]
? nla_parse+0xa0/0x100
nfnetlink_rcv_msg+0x175/0x6a9 [nfnetlink]
[...]
One possible solution is to make NF_CT_EXT_SYNPROXY extend built-in, i.e.
introduce nf_conntrack_synproxy.c and only do ct extend register and
unregister in it, similar to nf_conntrack_timeout.c.
But having such a obscure restriction of nf_ct_extend_unregister is not a
good idea, so we should invoke synchronize_rcu after set nf_ct_ext_types
to NULL, and check the NULL pointer when do __nf_ct_ext_add_length. Then
it will be easier if we add new ct extend in the future.
Last, we use kfree_rcu to free nf_ct_ext, so rcu_barrier() is unnecessary
anymore, remove it too.
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Check user provided dir value to prevent out-of-bound access
which may occur if dir is not less than XFRM_POLICY_MAX.
(url: http://seclists.org/bugtraq/2017/Jul/30)
Bug: 64257838
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I5bbdf95e14a61bdf5207977d9a5a4465bc848da0
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commands
When handling SHDLC I-Frame commands "pipe" field used for indexing
into an array should be checked before usage. If left unchecked it
might access memory outside of the array of size NFC_HCI_MAX_PIPES(127).
Bug: 62679701
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
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Retrieve socket uid from the sk_uid field added to struct sk instead of
read it from sk->socket->file. It prevent the packet been dropped when
the socket file doesn't exist.
Bug: 37524657
Signed-off-by: Chenbo Feng <fengc@google.com>
Change-Id: I10545a308d61a2124077cb6f05fb0f5d9b4559ad
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