Commit fa0dc04d authored Jan 24, 2016 by Eric Dumazet Committed by David S. Miller Jan 24, 2016

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: b3ca9b02 ("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>

parent 4877be90

net/unix/af_unix.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2339,6 +2339,7 @@ again:

		if (signal_pending(current)) {
		err = sock_intr_errno(timeo);
		scm_destroy(&scm);
		goto out;
		}

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