diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-01-24 13:53:50 -0800 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-03-04 10:25:46 -0500 |
| commit | 8d988538da0c17711c0de0a53fc38cef49e3ed1b (patch) | |
| tree | d790106484290b8e83340af7479967d07b6c0486 /net | |
| parent | 93493f5aaff542f0d542c48a3fda2dea1afe5e9e (diff) | |
af_unix: fix struct pid memory leak
[ Upstream commit fa0dc04df259ba2df3ce1920e9690c7842f8fa4b ]
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>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/unix/af_unix.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index cb3a01a9ed38..c741d8327204 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2131,6 +2131,7 @@ again: if (signal_pending(current)) { err = sock_intr_errno(timeo); + scm_destroy(&scm); goto out; } |