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Filename Latest commit message Latest commit date
Eric Dumazet bd9dfc54e3 tcp: fix hang in tcp_sendpage_locked() 
syszkaller got a hang in tcp stack, related to a bug in
tcp_sendpage_locked()

root@syzkaller:~# cat /proc/3059/stack
[<ffffffff83de926c>] __lock_sock+0x1dc/0x2f0
[<ffffffff83de9473>] lock_sock_nested+0xf3/0x110
[<ffffffff8408ce01>] tcp_sendmsg+0x21/0x50
[<ffffffff84163b6f>] inet_sendmsg+0x11f/0x5e0
[<ffffffff83dd8eea>] sock_sendmsg+0xca/0x110
[<ffffffff83dd9547>] kernel_sendmsg+0x47/0x60
[<ffffffff83de35dc>] sock_no_sendpage+0x1cc/0x280
[<ffffffff8408916b>] tcp_sendpage_locked+0x10b/0x160
[<ffffffff84089203>] tcp_sendpage+0x43/0x60
[<ffffffff841641da>] inet_sendpage+0x1aa/0x660
[<ffffffff83dd4fcd>] kernel_sendpage+0x8d/0xe0
[<ffffffff83dd50ac>] sock_sendpage+0x8c/0xc0
[<ffffffff81b63300>] pipe_to_sendpage+0x290/0x3b0
[<ffffffff81b67243>] __splice_from_pipe+0x343/0x750
[<ffffffff81b6a459>] splice_from_pipe+0x1e9/0x330
[<ffffffff81b6a5e0>] generic_splice_sendpage+0x40/0x50
[<ffffffff81b6b1d7>] SyS_splice+0x7b7/0x1610
[<ffffffff84d77a01>] entry_SYSCALL_64_fastpath+0x1f/0xbe

Fixes: 306b13eb3c ("proto_ops: Add locked held versions of sendmsg and sendpage")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25 17:22:01 -07:00
arch MIPS,bpf: fix missing break in switch statement 2017-08-22 16:18:00 -07:00
block blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL 2017-08-18 08:08:14 -06:00
certs
crypto
Documentation strparser: initialize all callbacks 2017-08-24 21:57:50 -07:00
drivers hinic: skb_pad() frees on error 2017-08-25 17:13:04 -07:00
firmware
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 17:06:42 -07:00
include net_sched: kill u32_node pointer in Qdisc 2017-08-25 17:19:10 -07:00
init
ipc
kernel strparser: initialize all callbacks 2017-08-24 21:57:50 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-08-21 17:06:42 -07:00
mm Sanitize 'move_pages()' permission checks 2017-08-20 13:26:27 -07:00
net tcp: fix hang in tcp_sendpage_locked() 2017-08-25 17:22:01 -07:00
samples bpf: Allow numa selection in INNER_LRU_HASH_PREALLOC test of map_perf_test 2017-08-19 21:35:43 -07:00
scripts parse-maintainers: Move matching sections from MAINTAINERS 2017-08-08 11:16:14 -07:00
security
sound ALSA: emu10k1: Fix forgotten user-copy conversion in init code 2017-08-18 10:59:02 +02:00
tools selftests/bpf: add a test for a pruning bug in the verifier 2017-08-23 22:38:07 -07:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS net-next/hinic: Add Maintainer 2017-08-22 10:48:54 -07:00
Makefile Linux 4.13-rc6 2017-08-20 14:13:52 -07:00
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.