SB20260918303 - Incorrect calculation in Linux kernel mediatek mt76 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918303
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2026-90375)
CWE-ID: CWE-682 - Incorrect Calculation
CVSSv4: 5.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to incorrect non-AQL packet accounting in __mt76_tx_queue_skb() when transmitting frames through a non-setup multi-link operation link. A remote user can transmit a frame using a link different from the station's setup link to cause a denial of service.
Remediation
Install update from vendor's website.