SB20260918316 - Improper control of a resource through its lifetime in Linux kernel mt76 mt7915 driver

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Main Vulnerability Database SB20260918316

SB20260918316 - Improper control of a resource through its lifetime in Linux kernel mt76 mt7915 driver

Published: September 18, 2026

Security Bulletin ID SB20260918316
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-90357)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

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


The vulnerability allows a local user to corrupt kernel driver state.

The vulnerability exists due to improper resource lifecycle management in the mt7915 TWT flow list when handling a TWT agreement rejected by the MCU. A local user can trigger a rejected TWT agreement to corrupt kernel driver state.

A reused flow slot can remain linked in the TWT list, leaving a dangling entry that is later traversed.


Remediation

Install update from vendor's website.

References