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If the driver is loaded when cfg80211_regdom is intersected then
user hint will fail for the first time since cfg80211 does not
have a check to see if cfg80211_regdom is intersected. Add
a check to see if cf80211_regdom is intersected and allow the
user hint to be processed.
Change-Id: Iba9cdd32470e29d35d3bb35012eb404b7c78d601
CRs-Fixed: 639538
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
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Print format %p displays the kernel address while bypassing the
kptr_restrict sysctl settings.
Change the print format for addresses from %p to %pK. If
kptr_restrict is enabled, addresses are printed as zeroes. To view
the actual addresses, disable kptr_restrict by -
echo 0 > /proc/sys/kernel/kptr_restrict
CRs-Fixed: 987041
Change-Id: I2eb33c63168ab26818dfdb3e11315f2ce8f24fa5
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Following stack trace was seen while doing a data transfer
Unable to handle kernel paging request at virtual address
6b6b6b6b6b6b6ef3
pgd = ffffffc01c7c5000 [6b6b6b6b6b6b6ef3] *pgd=0000000000000000,
*pud=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Call trace:
[<ffffffc000f669ac>] rmnet_map_command+0x19c/0x238
[<ffffffc000f6504c>] _rmnet_map_ingress_handler+0x3c/0x264
[<ffffffc000f65500>] rmnet_ingress_handler+0x1b4/0x3a4
[<ffffffc000f65704>] rmnet_rx_handler+0x14/0x2c
[<ffffffc000d8b5ac>] __netif_receive_skb_core+0x514/0x71c
[<ffffffc000d8c270>] __netif_receive_skb+0x30/0x98
[<ffffffc000d8d3bc>] process_backlog+0xb0/0x184
[<ffffffc000d8d1f8>] net_rx_action+0xfc/0x210
[<ffffffc00016a2e0>] __do_softirq+0x1c0/0x39c
[<ffffffc00016a824>] irq_exit+0x88/0xf4
[<ffffffc0001565e8>] handle_IPI+0x340/0x4b4
[<ffffffc0001455e8>] gic_handle_irq+0xc4/0xec
This is because an invalid MAP command was received and was freed
and rmnet_data was trying to send the freed skb as an ACK. Fix this
by returning if an invalid MAP command is detected.
CRs-Fixed: 1019188
Change-Id: Ib52e6551ac67215dab2bc5770ddcf037568f8b77
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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GRO is currently enabled only on SMP systems so move the check for
cloned packets from commit b8a7d12f33ecba4 ("net: Warn for cloned
packets in ingress path") within CONFIG_RPS to prevent printing an
unnecessary warning on single core systems.
CRs-Fixed: 1006937
Change-Id: Ib8cb979136def6696861a7835bcde763dabe874f
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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New country XA is based on Japan. The channels 5170-5250 are marked
as PASSIVE.
CRs-Fixed: 990486
Change-Id: I6dad4ce061316680239b3f9c23e64b23a875eb75
Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
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In local client and local service communication, getting the reference
count for local xport_info pointer fails with -ENODEV and returns
without sending the resume tx message which blocks the communication.
Check and remove the reference get logic for local xprt_info.
CRs-Fixed: 1009471
Change-Id: If11cd577d30c22d79544f4668e08ccf269237236
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
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Hardware does not require pad bytes in egress packets when uplink
aggregation is not enabled.
CRs-Fixed: 1002396
Change-Id: I86459b7bc18da16b66f6c701ac324f28be8848fa
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Print format %p displays the kernel address while bypassing the
kptr_restrict sysctl settings.
Change the print format for addresses from %p to %pK. If
kptr_restrict is enabled, addresses are printed as zeroes. To view
the actual addresses, disable kptr_restrict by -
echo 0 > /proc/sys/kernel/kptr_restrict
CRs-Fixed: 987054
Change-Id: Icb8ef62c8263ae7b17d6883c0e6a1c93d2156a6a
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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The current GRO implementation relies on NET_RX to complete
processing or the max possible TCP segment size for it to flush the
GRO coalesced packets. This leads to coalescing a large number of
packets which translates to very few ACKs. Since the number of
ACKs are very few and delayed during the slow start phase (stretch
ACK's), we see that the initial throughput ramp up is slow compared
to normal RFC TCP where we send an ACK per two packets. Note that
there is no difference between GRO and non GRO after the max window
size is reached.
Add a mechanism within rmnet_data to force the flush of packets
every 10 micro seconds (experimentally determined) by default. This
is controlled by the module parameter "gro_flush_time" and can be
configured to any value less than a second. To disable this feature,
set this entry to 0.
This reduces the coalesce of packets which translates to increased
number of ACK's compared to normal GRO but lesser ACK's compared
to NO GRO. There is no increase in power for a day to day use case.
Note that this optimization is specific to TCP GRO path only.
Some useful stats below for TCP DL at 400Mbps -
|TCP GRO Default | TCP GRO flush timer 10us
==================================================================
iperf 1st second tput | 300Mbps | 330Mbps
coalesce ratio | 15 | 4.5
CRs-Fixed: 961186
Change-Id: Ie8d76c493d61f3f4c256dbaa0378b22a361eed49
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Update copyright separately for this file so that the subsequent
change can be propagated without merge conflicts.
CRs-Fixed: 991792
Change-Id: Ib1af02d00e438f48619eacee291b1875671978e1
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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A crash is observed when a decrypted packet is processed in receive
path. get_rps_cpus() tries to dereference the skb->dev fields but it
appears that the device is freed from the poison pattern.
[<ffffffc000af58ec>] get_rps_cpu+0x94/0x2f0
[<ffffffc000af5f94>] netif_rx_internal+0x140/0x1cc
[<ffffffc000af6094>] netif_rx+0x74/0x94
[<ffffffc000bc0b6c>] xfrm_input+0x754/0x7d0
[<ffffffc000bc0bf8>] xfrm_input_resume+0x10/0x1c
[<ffffffc000ba6eb8>] esp_input_done+0x20/0x30
[<ffffffc0000b64c8>] process_one_work+0x244/0x3fc
[<ffffffc0000b7324>] worker_thread+0x2f8/0x418
[<ffffffc0000bb40c>] kthread+0xe0/0xec
-013|get_rps_cpu(
| dev = 0xFFFFFFC08B688000,
| skb = 0xFFFFFFC0C76AAC00 -> (
| dev = 0xFFFFFFC08B688000 -> (
| name =
"......................................................
| name_hlist = (next = 0xAAAAAAAAAAAAAAAA, pprev =
0xAAAAAAAAAAA
Following are the sequence of events observed -
- Encrypted packet in receive path from netdevice is queued
- Encrypted packet queued for decryption (asynchronous)
- Netdevice brought down and freed
- Packet is decrypted and returned through callback in esp_input_done
- Packet is queued again for process in network stack using netif_rx
Since the device appears to have been freed, the dereference of
skb->dev in get_rps_cpus() leads to an unhandled page fault
exception.
Fix this by holding on to device reference when queueing packets
asynchronously and releasing the reference on call back return.
v2: Make the change generic to xfrm as mentioned by Steffen and
update the title to xfrm
CRs-Fixed: 980550
Change-Id: I265259c5c79efef1d79f31c4f00c6557250434b1
Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jerome Stanislaus <jeromes@codeaurora.org>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: 071d36bf21bcc837be00cea55bcef8d129e7f609
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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This patch addresses two issues
a) The original GSO patch had a condition to check
for padding on a non linear skb and the egress
device, but the device name was incorrect leading
to the check always failing. This patch eliminates
the need for the check completely.
b) It is possible that the last frag in a GSO frame
would not be size aligned to a word boundary. In
this and all cases involving a non linear skb
frame we should skip padding. The driver can
expect a non linear packet when Scatter Gather
feature is enabled on the device. This patch
does just that.
Change-Id: Ifea5b1ae26b154bb047044e4bc3ad579d0da7f6d
CRs-fixed: 990751
Acked-by: Ashwanth Goli <ashwanth@qti.qualcomm.com>
Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
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Change the log level from high to medium when userspace calls an
unknown IOCTL on an rmnet data device. This log message is not
very useful and often causes log spam in the serial device
output which may occasionally lead to watchdog timeouts.
CRs-fixed: 1000453
Change-Id: I50e038d838eded30ee8304fefb2c13328eaf9683
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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In SSR case the xprt_info pointer is freed without considering the users of
the pointer in TX path will leads to use after free of the pointer.
Use the reference count to keep track of the xprt_info structure and wait
for the all user to complete the task before free the xprt_info pointer.
CRs-Fixed: 999123
Change-Id: I894a877346ff1d395c6f1b06267dfec333cb1024
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
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Fix type casting in IPv4 and IPV6 driver to avoid compilation
issues for ARCH=um on x86_64.
CRs-Fixed: 996252
Change-Id: Ic3ed8affa2c5bc8fd9b403614f692ab01e1a307a
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
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PBSS (Personal Basic Service Set) is a new BSS type for DMG
networks. It is similar to infrastructure BSS, having an AP-like
entity called PCP (PBSS Control Point), but it has few differences.
PBSS support is mandatory for 11ad devices.
Add support for PBSS by introducing a new PBSS flag attribute.
The PBSS flag is used in the START_AP command to request starting
a PCP instead of an AP, and in the CONNECT command to request
connecting to a PCP instead of an AP.
Change-Id: I9f26a8ff8433268240eb9443befadc0d279a0293
[liord@codeaurora.org: added missing attributes to nl80211.h
that were added in upstream kernel before the PBSS attribute,
in order to keep the ABI compatible]
Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: 00807f28573a101dc2833f0075e806b9874f306c
Git-repo: https://github.com/kvalo/ath.git
CRs-Fixed: 982931
Signed-off-by: Maya Erez <merez@codeaurora.org>
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Add the reference count for Smart Wireless Interface Manager to
know whether there are any process who still has the socket in
question in use or not.
Enable INET DIAG.
Redefine the TCP_FLAG as it gives compiling error when an enum is defined
by a function return.
Change-Id: I1aa9c810fec2e332048c9ef4199ec3f996bc3a75
Signed-off-by: Chinh Tran <chinht@codeaurora.org>
[chiaweic@codeaurora.org: resolve conflicts encountered with port to 4.4]
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
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While compiling for usermode linux for x86 architecture, observed
compilation issues with probable usage of uninitialized variables.
This change initializes the variables.
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
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This reverts commit f8aac738feb06363f4db715754f1e91d39ace021 ("net: unix:
Fix uninitialized warnings when building for ARCH=um").
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
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Add config support to disable the network skb fragment cache.
Enabling this option ensures that when allocating skbs the network
skb fragment cache will not be used.
Disabling use of the fragment cache can be useful on some low end
targets because it reduces memory pressure.
Change-Id: If3be82741a51d9275e41ca2eca99db3d1a4b2fcb
Signed-off-by: Liam Mark <lmark@codeaurora.org>
[satyap: trivial merge conflict resolution]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
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IPC Router binds any port as a control port and moves it from the client
port list to control port list. Misbehaving clients can exploit this
incorrect behavior.
IPC Router to check if the port is a client port before binding it as a
control port.
CRs-Fixed: 974577
Change-Id: I9f189b76967d5f85750218a7cb6537d187a69663
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
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Currently DPM is listening for all netlink events
and there is battery drain because of that. Since,
DPM is interested only in BIND and LISTEN events,
changes are to process only BIND and LSTEN events
and skip the rest for the sockev client.
CRs-Fixed: 945890
Change-Id: Iae11027945b981538f9c16ae9d5cd1ecf88a3743
Signed-off-by: Susheel Yadagiri <syadagir@codeaurora.org>
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>
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The service info structure is allocated with uninitialized memory for the
max number of services and returns the complete structure to the usersapce
resulting in the information leak if lookup operation finds less number of
services than the requested number.
Check the minimum of requested and available services and copy the minimum
information to the user-space.
CRs-Fixed: 965934
Change-Id: Ic97f875855fdc6440c1db1d8d0338ee8b03a9d0a
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
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During hotplug if an RPS CPU goes offline,
then there is a possibility that the IPI
delivery to the RPS core might fail, this
happens in the cases when unruly drivers
use netif_rx API in the wrong context.
This happens due to two reasons
a) Firstly using netif_rx API in non preemptive
context leads to enough latencies that the IPI
delivery might fail to an RPS core. This is because
the softIRQ trigger will become unpredictable.
b) by using netif_rx it becomes an architectural
issue where we are trying to do two things in two
different contexts. We set the NAPI bit in context
and sent the IPI in other context. Now since the
context switch is allowed, the remote CPU is allowed
to go finish its hotplug.
If there was no context switch in the first place,
which typically happens by either using the correct
version of netif_rx or switching to NAPI framework,
then the remote CPU is not allowed to go to CPU DOWN
state. This is by design since hotplug framework causes
the remote dying CPU to wait until atleast one context
switch happens on all other CPUS. If preemption is
disabled then the dying CPU has to wait until preemption
is enabled and a context switch happens.
This patch catches these unruly drivers and handles
IPI misses by clearing NAPI sate on remote RPS CPUs
Please refere here for more documentation on hotplug
and preemption cases https://lwn.net/Articles/569686/
CRs-Fixed: 966095
Change-Id: I072f91bdb4d7e444e3624e8e010ef1b66a67b1ed
Acked-by: Abhishek Chauhan <abchauha@qti.qualcomm.com>
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>
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When SIP ALG is disabled, SIP packet should not be parsed by
SIP ALG module. Make change to Check nf_ct_disable_sip_alg flag
before parsing the SIP packet to bypass SIP ALG processing
when SIP ALG is disabled.
Change-Id: I863c93f418b694bc0e9101c31d2da12e761091a6
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>
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Liping Zhang spotted a race between tcp_nuke_addr and tcp_close
that can cause a crash. If a userspace process calls tcp_close
on a socket at the same time that tcp_nuke_addr is closing it,
and tcp_close wins the race to call lock_sock, it will call
sock_orphan before releasing the lock. sock_orphan sets the
SOCK_DEAD flag on the socket and proceeds to close it, eventually
calling inet_csk_destroy_sock. When tcp_nuke_addr gets the socket
lock, it calls tcp_done. But if tcp_done sees the SOCK_DEAD flag,
it calls inet_csk_destroy_sock as well, resulting in a double
free.
Fix this by checking for SOCK_DEAD again after lock_sock
succeeds. Eric had already pointed out that this could be a
problem in b/23663111, so there was already a TODO in the code
for this.
Change-Id: I0c87c3fd0598384d957b69734366bd4e2fd7e8d7
Git-commit: 61469ddc534f255c709349a1a611216ecd07e13d
Git-repo: https://android.googlesource.com/kernel/common/
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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tcp_nuke addr only grabs the bottom half socket lock, but not the
userspace socket lock. This allows a userspace program to call
close() while the socket is running, which causes a NULL pointer
dereference in inet_put_port.
Bug: 23663111
Bug: 24072792
Change-Id: Iecb63af68c2db4764c74785153d1c9054f76b94f
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Git-commit: 74d66ee756afcc3269e4c1341f793c52be629af9
Git-repo: https://android.googlesource.com/kernel/common/
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Changes to store forced port only in the original direction.
This resolves the MT call issue where destination port is
incorrectly translated to forced_port.
Change-Id: I1b1c407c4beb8185ada0b005b1cd1034cb975141
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>
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Currently, IPC Router statically associates the version of the
protocol to be used with each link. Thus, dynamic version negotiation
is not possible.
Add support for version negotiation that sets IPC Router version
after a successful negotiation.
Change-Id: Iea04742ef30443c1e36760561e7f20175c4fbaa6
Signed-off-by: Atish Kumar Patra <apatra@codeaurora.org>
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It is possible that the 'tail' variable is used without initialization.
This change fixes uninitialized variable usage.
Change-Id: Idbd7d52797af2eeffcece19249055d5099a7fdb1
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
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It is possible that the 'in' variable is used without
initialization. This change fixes uninitialized variable usage.
Change-Id: If26733110b29ec1c1150f1da50efa0c1ac6c2796
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
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Fix compiler warnings for uninitialized variables.
Change-Id: I60571fbaef16f6c112b6e99f6e0bab46150fb241
Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
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* lsk-44/linux-linaro-lsk-v4.4:
Linux 4.4.3
modules: fix modparam async_probe request
module: wrapper for symbol name.
itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper
posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
prctl: take mmap sem for writing to protect against others
xfs: log mount failures don't wait for buffers to be released
Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"
xfs: inode recovery readahead can race with inode buffer creation
libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct
ovl: setattr: check permissions before copy-up
ovl: root: copy attr
ovl: check dentry positiveness in ovl_cleanup_whiteouts()
ovl: use a minimal buffer in ovl_copy_xattr
ovl: allow zero size xattr
futex: Drop refcount if requeue_pi() acquired the rtmutex
devm_memremap_release(): fix memremap'd addr handling
ipc/shm: handle removed segments gracefully in shm_mmap()
intel_scu_ipcutil: underflow in scu_reg_access()
mm,thp: khugepaged: call pte flush at the time of collapse
dump_stack: avoid potential deadlocks
radix-tree: fix oops after radix_tree_iter_retry
drivers/hwspinlock: fix race between radix tree insertion and lookup
radix-tree: fix race in gang lookup
MAINTAINERS: return arch/sh to maintained state, with new maintainers
memcg: only free spare array when readers are done
numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390
fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()
scripts/bloat-o-meter: fix python3 syntax error
dma-debug: switch check from _text to _stext
m32r: fix m32104ut_defconfig build fail
xhci: Fix list corruption in urb dequeue at host removal
Revert "xhci: don't finish a TD if we get a short-transfer event mid TD"
iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts
iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG
iommu/vt-d: Fix mm refcounting to hold mm_count not mm_users
iommu/amd: Correct the wrong setting of alias DTE in do_attach
iommu/vt-d: Don't skip PCI devices when disabling IOTLB
Input: vmmouse - fix absolute device registration
string_helpers: fix precision loss for some inputs
Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
Input: elantech - mark protocols v2 and v3 as semi-mt
mm: fix regression in remap_file_pages() emulation
mm: replace vma_lock_anon_vma with anon_vma_lock_read/write
mm: fix mlock accouting
libnvdimm: fix namespace object confusion in is_uuid_busy()
mm: soft-offline: check return value in second __get_any_page() call
perf kvm record/report: 'unprocessable sample' error while recording/reporting guest data
KVM: PPC: Fix ONE_REG AltiVec support
KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8
KVM: arm/arm64: Fix reference to uninitialised VGIC
arm64: dma-mapping: fix handling of devices registered before arch_initcall
ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
ARM: OMAP2+: Fix save_secure_ram_context for rodata
ARM: OMAP2+: Fix l2dis_3630 for rodata
ARM: OMAP2+: Fix l2_inv_api_params for rodata
ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0
ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
ARM: dts: at91: sama5d4: fix instance id of DBGU
ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt
ARM: dts: omap5-board-common: enable rtc and charging of backup battery
ARM: dts: Fix omap5 PMIC control lines for RTC writes
ARM: dts: Fix wl12xx missing clocks that cause hangs
ARM: nomadik: fix up SD/MMC DT settings
ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
ARM: 8519/1: ICST: try other dividends than 1
arm64: mm: avoid calling apply_to_page_range on empty range
ARM: mvebu: remove duplicated regulator definition in Armada 388 GP
powerpc/ioda: Set "read" permission when "write" is set
powerpc/powernv: Fix stale PE primary bus
powerpc/eeh: Fix stale cached primary bus
powerpc/eeh: Fix PE location code
SUNRPC: Fixup socket wait for memory
udf: Check output buffer length when converting name to CS0
udf: Prevent buffer overrun with multi-byte characters
udf: limit the maximum number of indirect extents in a row
pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn
nfs: Fix race in __update_open_stateid()
pNFS/flexfiles: Fix an Oopsable typo in ff_mirror_match_fh()
NFS: Fix attribute cache revalidation
cifs: fix erroneous return value
cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
cifs: fix race between call_async() and reconnect()
cifs: Ratelimit kernel log messages
iio: inkern: fix a NULL dereference on error
iio: pressure: mpl115: fix temperature offset sign
iio: light: acpi-als: Report data as processed
iio: dac: mcp4725: set iio name property in sysfs
iio: add IIO_TRIGGER dependency to STK8BA50
iio: add HAS_IOMEM dependency to VF610_ADC
iio-light: Use a signed return type for ltr501_match_samp_freq()
iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.
iio: adis_buffer: Fix out-of-bounds memory access
scsi: fix soft lockup in scsi_remove_target() on module removal
SCSI: Add Marvell Console to VPD blacklist
scsi_dh_rdac: always retry MODE SELECT on command lock violation
drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration
SCSI: fix crashes in sd and sr runtime PM
iscsi-target: Fix potential dead-lock during node acl delete
scsi: add Synology to 1024 sector blacklist
klist: fix starting point removed bug in klist iterators
tracepoints: Do not trace when cpu is offline
tracing: Fix freak link error caused by branch tracer
perf tools: tracepoint_error() can receive e=NULL, robustify it
tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines
ptrace: use fsuid, fsgid, effective creds for fs access checks
Btrfs: fix direct IO requests not reporting IO error to user space
Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
Btrfs: fix page reading in extent_same ioctl leading to csum errors
Btrfs: fix invalid page accesses in extent_same (dedup) ioctl
btrfs: properly set the termination value of ctx->pos in readdir
Revert "btrfs: clear PF_NOFREEZE in cleaner_kthread()"
Btrfs: fix fitrim discarding device area reserved for boot loader's use
btrfs: handle invalid num_stripes in sys_array
ext4: don't read blocks from disk after extents being swapped
ext4: fix potential integer overflow
ext4: fix scheduling in atomic on group checksum failure
serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
serial: 8250_pci: Add Intel Broadwell ports
tty: Add support for PCIe WCH382 2S multi-IO card
pty: make sure super_block is still valid in final /dev/tty close
pty: fix possible use after free of tty->driver_data
staging/speakup: Use tty_ldisc_ref() for paste kworker
phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
phy: twl4030-usb: Relase usb phy on unload
ALSA: seq: Fix double port list deletion
ALSA: seq: Fix leak of pool buffer at concurrent writes
ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream
ALSA: hda - Cancel probe work instead of flush at remove
x86/mm: Fix vmalloc_fault() to handle large pages properly
x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache()
x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable
x86/mm/pat: Avoid truncation when converting cpa->numpages to address
x86/mm: Fix types used in pgprot cacheability flags translations
Linux 4.4.2
HID: multitouch: fix input mode switching on some Elan panels
mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
zsmalloc: fix migrate_zspage-zs_free race condition
zram: don't call idr_remove() from zram_remove()
zram: try vmalloc() after kmalloc()
zram/zcomp: use GFP_NOIO to allocate streams
rtlwifi: rtl8821ae: Fix 5G failure when EEPROM is incorrectly encoded
rtlwifi: rtl8821ae: Fix errors in parameter initialization
crypto: marvell/cesa - fix test in mv_cesa_dev_dma_init()
crypto: atmel-sha - remove calls of clk_prepare() from atomic contexts
crypto: atmel-sha - fix atmel_sha_remove()
crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path
crypto: algif_skcipher - Do not dereference ctx without socket lock
crypto: algif_skcipher - Do not assume that req is unchanged
crypto: user - lock crypto_alg_list on alg dump
EVM: Use crypto_memneq() for digest comparisons
crypto: algif_hash - wait for crypto_ahash_init() to complete
crypto: shash - Fix has_key setting
crypto: chacha20-ssse3 - Align stack pointer to 64 bytes
crypto: caam - make write transactions bufferable on PPC platforms
crypto: algif_skcipher - sendmsg SG marking is off by one
crypto: algif_skcipher - Load TX SG list after waiting
crypto: crc32c - Fix crc32c soft dependency
crypto: algif_skcipher - Fix race condition in skcipher_check_key
crypto: algif_hash - Fix race condition in hash_check_key
crypto: af_alg - Forbid bind(2) when nokey child sockets are present
crypto: algif_skcipher - Remove custom release parent function
crypto: algif_hash - Remove custom release parent function
crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
ahci: Intel DNV device IDs SATA
libata: disable forced PORTS_IMPL for >= AHCI 1.3
crypto: algif_skcipher - Add key check exception for cipher_null
crypto: skcipher - Add crypto_skcipher_has_setkey
crypto: algif_hash - Require setkey before accept(2)
crypto: hash - Add crypto_ahash_has_setkey
crypto: algif_skcipher - Add nokey compatibility path
crypto: af_alg - Add nokey compatibility path
crypto: af_alg - Fix socket double-free when accept fails
crypto: af_alg - Disallow bind/setkey/... after accept(2)
crypto: algif_skcipher - Require setkey before accept(2)
sched: Fix crash in sched_init_numa()
ext4 crypto: add missing locking for keyring_key access
iommu/io-pgtable-arm: Ensure we free the final level on teardown
tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)
tty: Retry failed reopen if tty teardown in-progress
tty: Wait interruptibly for tty lock on reopen
n_tty: Fix unsafe reference to "other" ldisc
usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
usb: xhci: handle both SSIC ports in PME stuck quirk
usb: phy: msm: fix error handling in probe.
usb: cdc-acm: send zero packet for intel 7260 modem
usb: cdc-acm: handle unlinked urb in acm read callback
USB: option: fix Cinterion AHxx enumeration
USB: serial: option: Adding support for Telit LE922
USB: cp210x: add ID for IAI USB to RS485 adaptor
USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
usb: hub: do not clear BOS field during reset device
USB: visor: fix null-deref at probe
USB: serial: visor: fix crash on detecting device without write_urbs
ASoC: rt5645: fix the shift bit of IN1 boost
saa7134-alsa: Only frees registered sound cards
ALSA: dummy: Implement timer backend switching more safely
ALSA: hda - Fix bad dereference of jack object
ALSA: hda - Fix speaker output from VAIO AiO machines
Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
ALSA: hda - Fix static checker warning in patch_hdmi.c
ALSA: hda - Add fixup for Mac Mini 7,1 model
ALSA: timer: Fix race between stop and interrupt
ALSA: timer: Fix wrong instance passed to slave callbacks
ALSA: timer: Fix race at concurrent reads
ALSA: timer: Fix link corruption due to double start or stop
ALSA: timer: Fix leftover link at closing
ALSA: timer: Code cleanup
ALSA: seq: Fix lockdep warnings due to double mutex locks
ALSA: seq: Fix race at closing in virmidi driver
ALSA: seq: Fix yet another races among ALSA timer accesses
ASoC: dpcm: fix the BE state on hw_free
ALSA: pcm: Fix potential deadlock in OSS emulation
ALSA: hda/realtek - Support Dell headset mode for ALC225
ALSA: hda/realtek - Support headset mode for ALC225
ALSA: hda/realtek - New codec support of ALC225
ALSA: rawmidi: Fix race at copying & updating the position
ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
ALSA: rawmidi: Make snd_rawmidi_transmit() race-free
ALSA: seq: Degrade the error message for too many opens
ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
ALSA: dummy: Disable switching timer backend via sysfs
ALSA: compress: Disable GET_CODEC_CAPS ioctl for some architectures
ALSA: hda - disable dynamic clock gating on Broxton before reset
ALSA: Add missing dependency on CONFIG_SND_TIMER
ALSA: bebob: Use a signed return type for get_formation_index
ALSA: usb-audio: avoid freeing umidi object twice
ALSA: usb-audio: Add native DSD support for PS Audio NuWave DAC
ALSA: usb-audio: Fix OPPO HA-1 vendor ID
ALSA: usb-audio: Add quirk for Microsoft LifeCam HD-6000
ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay
hrtimer: Handle remaining time proper for TIME_LOW_RES
md/raid: only permit hot-add of compatible integrity profiles
media: i2c: Don't export ir-kbd-i2c module alias
parisc: Fix __ARCH_SI_PREAMBLE_SIZE
parisc: Protect huge page pte changes with spinlocks
printk: do cond_resched() between lines while outputting to consoles
tracing/stacktrace: Show entire trace if passed in function not found
tracing: Fix stacktrace skip depth in trace_buffer_unlock_commit_regs()
PCI: Fix minimum allocation address overwrite
PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD
mtd: nand: assign reasonable default name for NAND drivers
wlcore/wl12xx: spi: fix NULL pointer dereference (Oops)
wlcore/wl12xx: spi: fix oops on firmware load
ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup
ocfs2/dlm: ignore cleaning the migration mle that is inuse
ALSA: hda - Implement loopback control switch for Realtek and other codecs
block: fix bio splitting on max sectors
base/platform: Fix platform drivers with no probe callback
HID: usbhid: fix recursive deadlock
ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock
block: split bios to max possible length
NFSv4.1/pnfs: Fixup an lo->plh_block_lgets imbalance in layoutreturn
crypto: sun4i-ss - add missing statesize
Linux 4.4.1
arm64: kernel: fix architected PMU registers unconditional access
arm64: kernel: enforce pmuserenr_el0 initialization and restore
arm64: mm: ensure that the zero page is visible to the page table walker
arm64: Clear out any singlestep state on a ptrace detach operation
powerpc/module: Handle R_PPC64_ENTRY relocations
scripts/recordmcount.pl: support data in text section on powerpc
powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered
powerpc: Make value-returning atomics fully ordered
powerpc/tm: Check for already reclaimed tasks
batman-adv: Drop immediate orig_node free function
batman-adv: Drop immediate batadv_hard_iface free function
batman-adv: Drop immediate neigh_ifinfo free function
batman-adv: Drop immediate batadv_neigh_node free function
batman-adv: Drop immediate batadv_orig_ifinfo free function
batman-adv: Avoid recursive call_rcu for batadv_nc_node
batman-adv: Avoid recursive call_rcu for batadv_bla_claim
team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid
net/mlx5_core: Fix trimming down IRQ number
bridge: fix lockdep addr_list_lock false positive splat
ipv6: update skb->csum when CE mark is propagated
net: bpf: reject invalid shifts
phonet: properly unshare skbs in phonet_rcv()
dwc_eth_qos: Fix dma address for multi-fragment skbs
bonding: Prevent IPv6 link local address on enslaved devices
net: preserve IP control block during GSO segmentation
udp: disallow UFO for sockets with SO_NO_CHECK option
net: pktgen: fix null ptr deref in skb allocation
sched,cls_flower: set key address type when present
tcp_yeah: don't set ssthresh below 2
ipv6: tcp: add rcu locking in tcp_v6_send_synack()
net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory
vxlan: fix test which detect duplicate vxlan iface
unix: properly account for FDs passed over unix sockets
xhci: refuse loading if nousb is used
usb: core: lpm: fix usb3_hardware_lpm sysfs node
USB: cp210x: add ID for ELV Marble Sound Board 1
rtlwifi: fix memory leak for USB device
ASoC: compress: Fix compress device direction check
ASoC: wm5110: Fix PGA clear when disabling DRE
ALSA: timer: Handle disconnection more safely
ALSA: hda - Flush the pending probe work at remove
ALSA: hda - Fix missing module loading with model=generic option
ALSA: hda - Fix bass pin fixup for ASUS N550JX
ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
ALSA: hrtimer: Fix stall by hrtimer_cancel()
ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
ALSA: hda - Add fixup for Dell Latitidue E6540
ALSA: timer: Fix double unlink of active_list
ALSA: timer: Fix race among timer ioctls
ALSA: hda - fix the headset mic detection problem for a Dell laptop
ALSA: timer: Harden slave timer list handling
ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices
ALSA: hda - Fix white noise on Dell Latitude E5550
ALSA: seq: Fix race at timer setup and close
ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect
ALSA: seq: Fix missing NULL check at remove_events ioctl
ALSA: hda - Fixup inverted internal mic for Lenovo E50-80
ALSA: usb: Add native DSD support for Oppo HA-1
x86/mm: Improve switch_mm() barrier comments
x86/mm: Add barriers and document switch_mm()-vs-flush synchronization
x86/boot: Double BOOT_HEAP_SIZE to 64KB
x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL
KVM: x86: correctly print #AC in traces
KVM: x86: expose MSR_TSC_AUX to userspace
x86/xen: don't reset vcpu_info on a cancelled suspend
KEYS: Fix keyring ref leak in join_session_keyring()
Conflicts:
arch/arm64/kernel/perf_event.c
drivers/scsi/sd.c
sound/core/compress_offload.c
Change-Id: I9f77fe42aaae249c24cd6e170202110ab1426878
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
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commit 13331a551ab4df87f7a027d2cab392da96aba1de upstream.
We're seeing hangs in the NFS client code, with loops of the form:
RPC: 30317 xmit incomplete (267368 left of 524448)
RPC: 30317 call_status (status -11)
RPC: 30317 call_transmit (status 0)
RPC: 30317 xprt_prepare_transmit
RPC: 30317 xprt_transmit(524448)
RPC: xs_tcp_send_request(267368) = -11
RPC: 30317 xmit incomplete (267368 left of 524448)
RPC: 30317 call_status (status -11)
RPC: 30317 call_transmit (status 0)
RPC: 30317 xprt_prepare_transmit
RPC: 30317 xprt_transmit(524448)
Turns out commit ceb5d58b2170 ("net: fix sock_wake_async() rcu protection")
moved SOCKWQ_ASYNC_NOSPACE out of sock->flags and into sk->sk_wq->flags,
however it never tried to fix up the code in net/sunrpc.
The new idiom is to use the flags in the RCU protected struct socket_wq.
While we're at it, clear out the now redundant places where we set/clear
SOCKWQ_ASYNC_NOSPACE and SOCK_NOSPACE. In principle, sk_stream_wait_memory()
is supposed to set these for us, so we only need to clear them in the
particular case of our ->write_space() callback.
Fixes: ceb5d58b2170 ("net: fix sock_wake_async() rcu protection")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 42eff6a617e23b691f8e4467f4687ed7245a92db ]
It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.
But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_orig_node_free_ref.
Fixes: 72822225bd41 ("batman-adv: Fix rcu_barrier() miss due to double call_rcu() in TT code")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit b4d922cfc9c08318eeb77d53b7633740e6b0efb0 ]
It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.
But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_hardif_free_ref.
Fixes: 89652331c00f ("batman-adv: split tq information in neigh_node struct")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ae3e1e36e3cb6c686a7a2725af20ca86aa46d62a ]
It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.
But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_neigh_ifinfo_free_ref.
Fixes: 89652331c00f ("batman-adv: split tq information in neigh_node struct")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 2baa753c276f27f8e844637561ad597867aa6fb6 ]
It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.
But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_neigh_node_free_ref.
Fixes: 89652331c00f ("batman-adv: split tq information in neigh_node struct")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit deed96605f5695cb945e0b3d79429581857a2b9d ]
It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.
But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_orig_ifinfo_free_ref.
Fixes: 7351a4822d42 ("batman-adv: split out router from orig_node")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 44e8e7e91d6c7c7ab19688750f7257292640d1a0 ]
The batadv_nc_node_free_ref function uses call_rcu to delay the free of the
batadv_nc_node object until no (already started) rcu_read_lock is enabled
anymore. This makes sure that no context is still trying to access the
object which should be removed. But batadv_nc_node also contains a
reference to orig_node which must be removed.
The reference drop of orig_node was done in the call_rcu function
batadv_nc_node_free_rcu but should actually be done in the
batadv_nc_node_release function to avoid nested call_rcus. This is
important because rcu_barrier (e.g. batadv_softif_free or batadv_exit) will
not detect the inner call_rcu as relevant for its execution. Otherwise this
barrier will most likely be inserted in the queue before the callback of
the first call_rcu was executed. The caller of rcu_barrier will therefore
continue to run before the inner call_rcu callback finished.
Fixes: d56b1705e28c ("batman-adv: network coding - detect coding nodes and remove these after timeout")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 63b399272294e7a939cde41792dca38c549f0484 ]
The batadv_claim_free_ref function uses call_rcu to delay the free of the
batadv_bla_claim object until no (already started) rcu_read_lock is enabled
anymore. This makes sure that no context is still trying to access the
object which should be removed. But batadv_bla_claim also contains a
reference to backbone_gw which must be removed.
The reference drop of backbone_gw was done in the call_rcu function
batadv_claim_free_rcu but should actually be done in the
batadv_claim_release function to avoid nested call_rcus. This is important
because rcu_barrier (e.g. batadv_softif_free or batadv_exit) will not
detect the inner call_rcu as relevant for its execution. Otherwise this
barrier will most likely be inserted in the queue before the callback of
the first call_rcu was executed. The caller of rcu_barrier will therefore
continue to run before the inner call_rcu callback finished.
Fixes: 23721387c409 ("batman-adv: add basic bridge loop avoidance code")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit c6894dec8ea9ae05747124dce98b3b5c2e69b168 ]
After promisc mode management was introduced a bridge device could do
dev_set_promiscuity from its ndo_change_rx_flags() callback which in
turn can be called after the bridge's addr_list_lock has been taken
(e.g. by dev_uc_add). This causes a false positive lockdep splat because
the port interfaces' addr_list_lock is taken when br_manage_promisc()
runs after the bridge's addr list lock was already taken.
To remove the false positive introduce a custom bridge addr_list_lock
class and set it on bridge init.
A simple way to reproduce this is with the following:
$ brctl addbr br0
$ ip l add l br0 br0.100 type vlan id 100
$ ip l set br0 up
$ ip l set br0.100 up
$ echo 1 > /sys/class/net/br0/bridge/vlan_filtering
$ brctl addif br0 eth0
Splat:
[ 43.684325] =============================================
[ 43.684485] [ INFO: possible recursive locking detected ]
[ 43.684636] 4.4.0-rc8+ #54 Not tainted
[ 43.684755] ---------------------------------------------
[ 43.684906] brctl/1187 is trying to acquire lock:
[ 43.685047] (_xmit_ETHER){+.....}, at: [<ffffffff8150169e>] dev_set_rx_mode+0x1e/0x40
[ 43.685460] but task is already holding lock:
[ 43.685618] (_xmit_ETHER){+.....}, at: [<ffffffff815072a7>] dev_uc_add+0x27/0x80
[ 43.686015] other info that might help us debug this:
[ 43.686316] Possible unsafe locking scenario:
[ 43.686743] CPU0
[ 43.686967] ----
[ 43.687197] lock(_xmit_ETHER);
[ 43.687544] lock(_xmit_ETHER);
[ 43.687886] *** DEADLOCK ***
[ 43.688438] May be due to missing lock nesting notation
[ 43.688882] 2 locks held by brctl/1187:
[ 43.689134] #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff81510317>] rtnl_lock+0x17/0x20
[ 43.689852] #1: (_xmit_ETHER){+.....}, at: [<ffffffff815072a7>] dev_uc_add+0x27/0x80
[ 43.690575] stack backtrace:
[ 43.690970] CPU: 0 PID: 1187 Comm: brctl Not tainted 4.4.0-rc8+ #54
[ 43.691270] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014
[ 43.691770] ffffffff826a25c0 ffff8800369fb8e0 ffffffff81360ceb ffffffff826a25c0
[ 43.692425] ffff8800369fb9b8 ffffffff810d0466 ffff8800369fb968 ffffffff81537139
[ 43.693071] ffff88003a08c880 0000000000000000 00000000ffffffff 0000000002080020
[ 43.693709] Call Trace:
[ 43.693931] [<ffffffff81360ceb>] dump_stack+0x4b/0x70
[ 43.694199] [<ffffffff810d0466>] __lock_acquire+0x1e46/0x1e90
[ 43.694483] [<ffffffff81537139>] ? netlink_broadcast_filtered+0x139/0x3e0
[ 43.694789] [<ffffffff8153b5da>] ? nlmsg_notify+0x5a/0xc0
[ 43.695064] [<ffffffff810d10f5>] lock_acquire+0xe5/0x1f0
[ 43.695340] [<ffffffff8150169e>] ? dev_set_rx_mode+0x1e/0x40
[ 43.695623] [<ffffffff815edea5>] _raw_spin_lock_bh+0x45/0x80
[ 43.695901] [<ffffffff8150169e>] ? dev_set_rx_mode+0x1e/0x40
[ 43.696180] [<ffffffff8150169e>] dev_set_rx_mode+0x1e/0x40
[ 43.696460] [<ffffffff8150189c>] dev_set_promiscuity+0x3c/0x50
[ 43.696750] [<ffffffffa0586845>] br_port_set_promisc+0x25/0x50 [bridge]
[ 43.697052] [<ffffffffa05869aa>] br_manage_promisc+0x8a/0xe0 [bridge]
[ 43.697348] [<ffffffffa05826ee>] br_dev_change_rx_flags+0x1e/0x20 [bridge]
[ 43.697655] [<ffffffff81501532>] __dev_set_promiscuity+0x132/0x1f0
[ 43.697943] [<ffffffff81501672>] __dev_set_rx_mode+0x82/0x90
[ 43.698223] [<ffffffff815072de>] dev_uc_add+0x5e/0x80
[ 43.698498] [<ffffffffa05b3c62>] vlan_device_event+0x542/0x650 [8021q]
[ 43.698798] [<ffffffff8109886d>] notifier_call_chain+0x5d/0x80
[ 43.699083] [<ffffffff810988b6>] raw_notifier_call_chain+0x16/0x20
[ 43.699374] [<ffffffff814f456e>] call_netdevice_notifiers_info+0x6e/0x80
[ 43.699678] [<ffffffff814f4596>] call_netdevice_notifiers+0x16/0x20
[ 43.699973] [<ffffffffa05872be>] br_add_if+0x47e/0x4c0 [bridge]
[ 43.700259] [<ffffffffa058801e>] add_del_if+0x6e/0x80 [bridge]
[ 43.700548] [<ffffffffa0588b5f>] br_dev_ioctl+0xaf/0xc0 [bridge]
[ 43.700836] [<ffffffff8151a7ac>] dev_ifsioc+0x30c/0x3c0
[ 43.701106] [<ffffffff8151aac9>] dev_ioctl+0xf9/0x6f0
[ 43.701379] [<ffffffff81254345>] ? mntput_no_expire+0x5/0x450
[ 43.701665] [<ffffffff812543ee>] ? mntput_no_expire+0xae/0x450
[ 43.701947] [<ffffffff814d7b02>] sock_do_ioctl+0x42/0x50
[ 43.702219] [<ffffffff814d8175>] sock_ioctl+0x1e5/0x290
[ 43.702500] [<ffffffff81242d0b>] do_vfs_ioctl+0x2cb/0x5c0
[ 43.702771] [<ffffffff81243079>] SyS_ioctl+0x79/0x90
[ 43.703033] [<ffffffff815eebb6>] entry_SYSCALL_64_fastpath+0x16/0x7a
CC: Vlad Yasevich <vyasevic@redhat.com>
CC: Stephen Hemminger <stephen@networkplumber.org>
CC: Bridge list <bridge@lists.linux-foundation.org>
CC: Andy Gospodarek <gospo@cumulusnetworks.com>
CC: Roopa Prabhu <roopa@cumulusnetworks.com>
Fixes: 2796d0c648c9 ("bridge: Automatically manage port promiscuous mode.")
Reported-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.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 34ae6a1aa0540f0f781dd265366036355fdc8930 ]
When a tunnel decapsulates the outer header, it has to comply
with RFC 6080 and eventually propagate CE mark into inner header.
It turns out IP6_ECN_set_ce() does not correctly update skb->csum
for CHECKSUM_COMPLETE packets, triggering infamous "hw csum failure"
messages and stack traces.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 229394e8e62a4191d592842cf67e80c62a492937 ]
On ARM64, a BUG() is triggered in the eBPF JIT if a filter with a
constant shift that can't be encoded in the immediate field of the
UBFM/SBFM instructions is passed to the JIT. Since these shifts
amounts, which are negative or >= regsize, are invalid, reject them in
the eBPF verifier and the classic BPF filter checker, for all
architectures.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 7aaed57c5c2890634cfadf725173c7c68ea4cb4f ]
Ivaylo Dimitrov reported a regression caused by commit 7866a621043f
("dev: add per net_device packet type chains").
skb->dev becomes NULL and we crash in __netif_receive_skb_core().
Before above commit, different kind of bugs or corruptions could happen
without major crash.
But the root cause is that phonet_rcv() can queue skb without checking
if skb is shared or not.
Many thanks to Ivaylo Dimitrov for his help, diagnosis and tests.
Reported-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Remi Denis-Courmont <courmisch@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 9207f9d45b0ad071baa128e846d7e7ed85016df3 ]
Skb_gso_segment() uses skb control block during segmentation.
This patch adds 32-bytes room for previous control block which
will be copied into all resulting segments.
This patch fixes kernel crash during fragmenting forwarded packets.
Fragmentation requires valid IP CB in skb for clearing ip options.
Also patch removes custom save/restore in ovs code, now it's redundant.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Link: http://lkml.kernel.org/r/CALYGNiP-0MZ-FExV2HutTvE9U-QQtkKSoE--KN=JQE5STYsjAA@mail.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 40ba330227ad00b8c0cdf2f425736ff9549cc423 ]
Commit acf8dd0a9d0b ("udp: only allow UFO for packets from SOCK_DGRAM
sockets") disallows UFO for packets sent from raw sockets. We need to do
the same also for SOCK_DGRAM sockets with SO_NO_CHECK options, even if
for a bit different reason: while such socket would override the
CHECKSUM_PARTIAL set by ip_ufo_append_data(), gso_size is still set and
bad offloading flags warning is triggered in __skb_gso_segment().
In the IPv6 case, SO_NO_CHECK option is ignored but we need to disallow
UFO for packets sent by sockets with UDP_NO_CHECK6_TX option.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Tested-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-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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[ Upstream commit 3de03596dfeee48bc803c1d1a6daf60a459929f3 ]
Fix possible null pointer dereference that may occur when calling
skb_reserve() on a null skb.
Fixes: 879c7220e82 ("net: pktgen: Observe needed_headroom of the device")
Signed-off-by: John Fastabend <john.r.fastabend@intel.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 66530bdf85eb1d72a0c399665e09a2c2298501c6 ]
only when user space passes the addresses should we consider their
presence
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 83d15e70c4d8909d722c0d64747d8fb42e38a48f ]
For tcp_yeah, use an ssthresh floor of 2, the same floor used by Reno
and CUBIC, per RFC 5681 (equation 4).
tcp_yeah_ssthresh() was sometimes returning a 0 or negative ssthresh
value if the intended reduction is as big or bigger than the current
cwnd. Congestion control modules should never return a zero or
negative ssthresh. A zero ssthresh generally results in a zero cwnd,
causing the connection to stall. A negative ssthresh value will be
interpreted as a u32 and will set a target cwnd for PRR near 4
billion.
Oleksandr Natalenko reported that a system using tcp_yeah with ECN
could see a warning about a prior_cwnd of 0 in
tcp_cwnd_reduction(). Testing verified that this was due to
tcp_yeah_ssthresh() misbehaving in this way.
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
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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