SB20260816116 - Heap-based buffer overflow in Linux kernel soc sof

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Main Vulnerability Database SB20260816116

SB20260816116 - Heap-based buffer overflow in Linux kernel soc sof

Published: August 16, 2026

Security Bulletin ID SB20260816116
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) Heap-based buffer overflow (CVE-ID: CVE-2026-72262)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service or disclose sensitive information.

The vulnerability exists due to a heap-based buffer overflow and out-of-bounds read in the SOF IPC3 bytes control handling in sound/soc/sof/ipc3-control.c when processing data through the ALSA TLV kcontrol interface. A local user can send specially crafted control data to cause a denial of service or disclose sensitive information.

The issue affects the bytes_ext put and get paths, including an error-path restore operation that can write past the end of the allocated buffer.


Remediation

Install update from vendor's website.

References