SB20261023237 - Out-of-bounds write in Linux kernel soc qcom

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Main Vulnerability Database SB20261023237

SB20261023237 - Out-of-bounds write in Linux kernel soc qcom

Published: October 23, 2026

Security Bulletin ID SB20261023237
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) Out-of-bounds write (CVE-ID: CVE-2026-98940)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to potentially cause a denial of service through kernel memory corruption.

The vulnerability exists due to an out-of-bounds write in the Qualcomm LPASS CPU driver's asoc_qcom_lpass_cpu_platform_probe() function when configuring playback channel constraints for a DAI using LPAIF_I2SCTL_MODE_QUAD01 on platforms with sparse DAI IDs. A local privileged user can trigger the affected probe path to cause a hardware port ID to be used as a DAI driver table index, potentially corrupting kernel memory and causing a denial of service.


Remediation

Install update from vendor's website.

References