SB20260816122 - NULL pointer dereference in Linux kernel qcom qdsp6

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Main Vulnerability Database SB20260816122

SB20260816122 - NULL pointer dereference in Linux kernel qcom qdsp6

Published: August 16, 2026

Security Bulletin ID SB20260816122
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2026-72257)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


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

The vulnerability exists due to a NULL pointer dereference in graph_callback in the q6apm ASoC component when handling late DSP buffer-done responses after buffers have been freed. A local user can trigger the race condition to cause a denial of service.

This issue is exposed by a race between buffer cleanup and asynchronous DSP response handling.


Remediation

Install update from vendor's website.

References