Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command.
https://patchwork.kernel.org/patch/8752621/
https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4
https://bugzilla.redhat.com/show_bug.cgi?id=1401494
http://www.openwall.com/lists/oss-security/2016/12/03/2
http://www.securityfocus.com/bid/94654
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html
Source: MITRE
Published: 2016-12-28
Updated: 2023-01-17
Type: CWE-362
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH