diff options
| author | Eric Dumazet <edumazet@google.com> | 2016-01-24 13:53:50 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-03 15:07:04 -0800 |
| commit | 39770be4d6ad29c5ab1f21edbbf01db067f13b52 (patch) | |
| tree | 86718e66f931e5963323d3858dc8fb5a9f506a5e /net | |
| parent | e5abc10d19b90ab363d8a732bc6cf098249e10c5 (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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 e3f85bc8b135..775855ee1ff8 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2332,6 +2332,7 @@ again: if (signal_pending(current)) { err = sock_intr_errno(timeo); + scm_destroy(&scm); goto out; } |