Improper resource shutdown or release in Linux kernel - CVE-2026-80934
Published: September 13, 2026
Vulnerability identifier: #VU149460
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80934
CWE-ID: CWE-404
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource release in the mt7996 TXP skb unmap handling for AddBA request frames when processing AddBA request action frames. A remote attacker can repeatedly initiate associations to cause a denial of service.
The issue manifests under continuous client reconnect churn when WED is enabled.
Affected software
Linux kernel
How to mitigate CVE-2026-80934
Install security update from vendor's repository.