NULL pointer dereference in Linux kernel - CVE-2026-80813
Published: September 5, 2026
Vulnerability identifier: #VU147109
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80813
CWE-ID: CWE-476
Exploitation vector: Remote access
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 a null pointer dereference in nvmet_execute_identify_nslist() when processing an Identify command with CNS 07h. A remote attacker can issue a crafted Identify command to cause a denial of service.
Exploitation requires an enabled namespace with an NSID greater than the requested value.
Affected software
Linux kernel
How to mitigate CVE-2026-80813
Install security update from vendor's repository.