CVE-2026-64486
kernel: ALSA: cmipci: check snd_ctl_new1() return value
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 25, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's Advanced Linux Sound Architecture (ALSA) cmipci component. This vulnerability occurs because the snd_cmipci_spdif_controls() function fails to check the return value of snd_ctl_new1(), which can return a null pointer if memory allocation fails. A local attacker could exploit this to trigger a null pointer dereference, leading to a system crash and a denial of service (DoS).
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 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference