android_kernel_oneplus_msm8998/net/sctp
Marcelo Ricardo Leitner a4226c7ebf sctp: avoid BUG_ON on sctp_wait_for_sndbuf
[ Upstream commit 2dcab598484185dea7ec22219c76dcdd59e3cb90 ]

Alexander Popov reported that an application may trigger a BUG_ON in
sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is
waiting on it to queue more data and meanwhile another thread peels off
the association being used by the first thread.

This patch replaces the BUG_ON call with a proper error handling. It
will return -EPIPE to the original sendmsg call, similarly to what would
have been done if the association wasn't found in the first place.

Acked-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-18 16:39:27 +01:00
..
associola.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
auth.c sctp: translate host order to network order when setting a hmacid 2015-11-15 18:27:27 -05:00
bind_addr.c
chunk.c switch sctp_user_addto_chunk() and sctp_datamsg_from_user() to passing iov_iter 2014-11-24 05:16:40 -05:00
debug.c
endpointola.c
input.c
inqueue.c net: sctp: fix remote memory pressure from excessive queueing 2014-10-14 12:46:22 -04:00
ipv6.c sctp: lack the check for ports in sctp_v6_cmp_addr 2016-04-20 15:41:58 +09:00
Kconfig
Makefile
objcnt.c
output.c sctp: Fix race between OOTB responce and route removal 2015-06-29 09:28:42 -07:00
outqueue.c sctp: start t5 timer only when peer rwnd is 0 and local state is SHUTDOWN_PENDING 2015-12-06 22:31:51 -05:00
primitive.c
probe.c
proc.c sctp: replace seq_printf with seq_puts 2014-10-30 19:40:16 -04:00
protocol.c sctp: Fix port hash table size computation 2016-03-03 15:07:07 -08:00
sm_make_chunk.c sctp: use the same clock as if sock source timestamps were on 2015-12-05 22:23:22 -05:00
sm_sideeffect.c sctp: Prevent soft lockup when sctp_accept() is called during a timeout event 2015-09-28 21:03:40 -07:00
sm_statefuns.c sctp: validate chunk len before actually using it 2016-11-15 07:46:39 +01:00
sm_statetable.c
socket.c sctp: avoid BUG_ON on sctp_wait_for_sndbuf 2017-02-18 16:39:27 +01:00
ssnmap.c
sysctl.c net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory 2016-01-31 11:28:59 -08:00
transport.c remove abs64() 2015-11-09 15:11:24 -08:00
tsnmap.c
ulpevent.c
ulpqueue.c net: introduce SO_INCOMING_CPU 2014-11-11 13:00:06 -05:00