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CVE-2026-53242

kernel: ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · June 25, 2026

Updated · October 29, 2026

Description

A flaw was found in the Advanced Linux Sound Architecture (ALSA) Pulse-Code Modulation (PCM) component of the Linux kernel. This vulnerability involves a corruption of wait queue lists within the snd_pcm_drain() function when processing linked streams. An attacker could exploit this issue to trigger a kernel panic, leading to a Denial of Service (DoS) on the affected system.

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 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-824 · Access of Uninitialized Pointer