SB20260918298 - Infinite loop in Linux kernel mt76 mt7996 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918298
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Infinite loop (CVE-ID: CVE-2026-90370)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
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 improper validation of TLV lengths in mt7996_mcu_get_chip_config when parsing a firmware response during device probe. A local user can provide a firmware response containing a zero-length TLV to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3106f62809d45c1e6aadfad1f4d7c3f74cd53a96
- https://git.kernel.org/stable/c/39aa6b853b6d69dd1fee3507efdb3c277b7c53e6
- https://git.kernel.org/stable/c/44af52467e72094351a362bf69effd52f1d9c186
- https://git.kernel.org/stable/c/93eaddfdd35aa6bfe570c087db4e97fb9d8a791a
- https://git.kernel.org/stable/c/d0bb2189ade617e624f3c8f444ebb05f59bb2524