Date: Wed, 18 Nov 2015 02:57:37 -0500 (EST) From: Wade Mealing <wmealing@...hat.com> To: OSS Security List <oss-security@...ts.openwall.com> Cc: cve-assign@...re.org Subject: CVE request - Linux kernel - Unix sockets use after free - peer_wait_queue prematurely freed Gday, A flaw was found in the Linux kernels implementation of Unix sockets(AF_UNIX). A server polling for data coming from a client socket may put the peer socket on a wait list. This peer may close the connection making the reference on the wait list no longer valid. A determined attacker could poison this memory and lead to bypassing permissions on a the socket, and packets being injected into the stream. This may also panic the machine. Thanks, Wade Mealing Original discussion: - https://groups.google.com/forum/#!topic/syzkaller/3twDUI4Cpm8 Upstream patch: - Patch discussion available at the same url, no final patch at the time of writing Red Hat Bugzilla: - https://bugzilla.redhat.com/show_bug.cgi?id=1282688
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