CVE-2016-2548

Description

sound/core/timer.c in the Linux kernel before 4.4.1 retains certain linked lists after a close or stop action, which allows local users to cause a denial of service (system crash) via a crafted ioctl call, related to the (1) snd_timer_close and (2) _snd_timer_stop functions.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d
• http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
• http://www.debian.org/security/2016/dsa-3503
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
• http://www.openwall.com/lists/oss-security/2016/01/19/1
• http://www.securityfocus.com/bid/83383
• http://www.securitytracker.com/id/1035306
• http://www.ubuntu.com/usn/USN-2929-1
• http://www.ubuntu.com/usn/USN-2929-2
• http://www.ubuntu.com/usn/USN-2930-1
• http://www.ubuntu.com/usn/USN-2930-2
• http://www.ubuntu.com/usn/USN-2930-3
• http://www.ubuntu.com/usn/USN-2931-1
• http://www.ubuntu.com/usn/USN-2932-1
• http://www.ubuntu.com/usn/USN-2967-1
• http://www.ubuntu.com/usn/USN-2967-2
• https://bugzilla.redhat.com/show_bug.cgi?id=1311568
• https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d
• https://security-tracker.debian.org/tracker/CVE-2016-2548

CWEs

CWE-20