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CVE-2022-49292

kernel: ALSA: oss: Fix PCM OSS buffer allocation overflow

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · February 26, 2025

Updated · October 21, 2026

Description

A flaw was found in the Linux kernel PCM OSS layer. The temporary conversion buffer size is computed from channel count and rate and can overflow, so vmalloc is asked for an enormous buffer. A local user of an OSS PCM device can trigger that overflow.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling