af_unix: fix struct pid memory leak
authorEric Dumazet <edumazet@google.com>
Sun, 24 Jan 2016 21:53:50 +0000 (13:53 -0800)
committerDavid S. Miller <davem@davemloft.net>
Mon, 25 Jan 2016 06:04:49 +0000 (22:04 -0800)
commitfa0dc04df259ba2df3ce1920e9690c7842f8fa4b
treede00379849c3284fd3cd1cd7359792dd741305ef
parent4877be9019baaf1432f9117bff4873e4ad518d91
af_unix: fix struct pid memory leak

Dmitry reported a struct pid leak detected by a syzkaller program.

Bug happens in unix_stream_recvmsg() when we break the loop when a
signal is pending, without properly releasing scm.

Fixes: b3ca9b02b007 ("net: fix multithreaded signal handling in unix recv routines")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/unix/af_unix.c