NULL pointer dereference in Linux kernel - CVE-2026-80984
Published: September 12, 2026
Vulnerability identifier: #VU149417
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80984
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in the SMC-D teardown path when an SMC-D link group terminates while a socket is waiting during teardown. A local user can trigger the teardown race to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-80984
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3