CVE-2016-9794
kernel: ALSA: Use-after-free in kill_fasync
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · April 14, 2016
Updated · November 21, 2025
Description
A use-after-free vulnerability was found in ALSA pcm layer, which allows local users to cause a denial of service, memory corruption, or possibly other unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
Statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG-2 as the flaw was already fixed in the products listed.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 · 6.2AV:L/AC:H/Au:N/C:C/I:C/A:C
CWE-416 · Use After Free