NULL pointer dereference in Linux kernel - CVE-2026-80913
Published: September 5, 2026
Vulnerability identifier: #VU147001
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80913
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in the SELinux boolean value mapping array when processing a policy image that declares undefined boolean values. A local privileged user can load a crafted SELinux policy to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-80913
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/3161daa3f1e3ca68f8b2b8fa01720b5a8dcc6b40
- https://git.kernel.org/stable/c/3938c8494d3c5d84a53fd7d1966ae9dde46cb5f8
- https://git.kernel.org/stable/c/42a7107f99d86a7524c37f108047dfa3db096ab5
- https://git.kernel.org/stable/c/4d0ece18e648bd4362704fd087249ac697f2b7fb
- https://git.kernel.org/stable/c/4dfb997c60f7951011d3dcbee926e3a7f80d8a76
- https://git.kernel.org/stable/c/740012aebdb8311332bf66e2aabf453ba73c2c45
- https://git.kernel.org/stable/c/a93d37a09b863810653f93d371fb197457d59deb
- https://git.kernel.org/stable/c/ed901e88aa3fb3d5d7b0b52c2ee3073209df9bec