Race condition in Linux kernel - CVE-2026-80980
Published: September 12, 2026
Vulnerability identifier: #VU149413
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80980
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause connection state inconsistencies.
The vulnerability exists due to a race condition in the connection state flags of struct smc_connection when processing received connection control messages concurrently with connection termination. A remote attacker can send connection control messages during concurrent connection termination to cause connection state inconsistencies.
Affected software
Linux kernel
How to mitigate CVE-2026-80980
Install security update from vendor's repository.