Improper control of a resource through its lifetime in Linux kernel - CVE-2026-89800
Published: September 17, 2026
Vulnerability identifier: #VU150491
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89800
CWE-ID: CWE-664
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 improper state management in the nouveau UVMM bind-job unwind handling when a later operation in a bind job fails after a successful sparse unmap. A local user can cause a later operation in a bind job to fail after a successful sparse unmap to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-89800
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/1101cbfe7f342e5eaaf7444965d4f1215abdac4c
- https://git.kernel.org/stable/c/196ce9e5e93202da097062be24e404984dbc5ac2
- https://git.kernel.org/stable/c/38a62306c4266bcb3cd89e33c7111ee33096ebb3
- https://git.kernel.org/stable/c/a129b2b875c148aba233ace8447a0c36ca3bae07
- https://git.kernel.org/stable/c/c60033c172420179b7bbb3d1f843f8dc90164dc5