CVE-2022-49045

kernel: ALSA: pcm: Test for "silence" field in struct "pcm_format_data"

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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 · June 30, 2026

Description

[REJECTED CVE] CVE-2022-49045 pertains to a vulnerability identified in the Linux kernel's Advanced Linux Sound Architecture (ALSA) subsystem, specifically within the PCM (Pulse Code Modulation) component. The issue stemmed from insufficient validation of the "silence" field in the pcm_format_data structure. This oversight could lead to a null pointer dereference during certain audio operations, potentially causing a system crash.

Statement

This CVE has been rejected upstream: https://lore.kernel.org/linux-cve-announce/2025030209-REJECTED-33ef@gregkh/

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-170 · Improper Null Termination