SB2026081683 - Time-of-check Time-of-use (TOCTOU) Race Condition in Linux kernel soc sof

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Main Vulnerability Database SB2026081683

SB2026081683 - Time-of-check Time-of-use (TOCTOU) Race Condition in Linux kernel soc sof

Published: August 16, 2026

Security Bulletin ID SB2026081683
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-72301)

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a time-of-check time-of-use flaw in sof_ipc3_bytes_put() when copying user-supplied control data. A local user can provide crafted control data with a different size than the previously stored buffer contents to cause a denial of service.

The copied length is derived from the old buffered size rather than the incoming size field.


Remediation

Install update from vendor's website.

References