Messages in this thread Patch in this message | | | Subject | [PATCH net] af_unix: fix struct pid memory leak | From | Eric Dumazet <> | Date | Sun, 24 Jan 2016 13:53:50 -0800 |
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From: Eric Dumazet <edumazet@google.com>
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> --- net/unix/af_unix.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index c5bf5ef2bf89..49d5093eb055 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2339,6 +2339,7 @@ again: if (signal_pending(current)) { err = sock_intr_errno(timeo); + scm_destroy(&scm); goto out; }
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