High severity · published Sep 11, 2026
CVE-2026-89553
nouveau/gem: reserve the bo in the info ioctl around the vma lookup
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
nouveau/gem: reserve the bo in the info ioctl around the vma lookup
In the non-uvmm path, there could be a race between the info lookup
finding the vma, and the gem close path closing the vma leading
to a use-after-free.
Spotted with the help of Opus 4.6.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
e758a3111914af7ee4351be86f1ac0efe87ed06e before e05c28bd6043d0fd0bea9c3fc49300a8871a1a81; e758a3111914af7ee4351be86f1ac0efe87ed06e before 208867763843aa82efcbe3b771f1b8e6c7aa820a; e758a3111914af7ee4351be86f1ac0efe87ed06e before ff110e85837d7ecd83f36078107be240ff5ae409; e758a3111914af7ee4351be86f1ac0efe87ed06e before e60466011ac3a6b8045e6cc3c2cbb30d58039d2e; e758a3111914af7ee4351be86f1ac0efe87ed06e before 5e17160d41d92823f3379c1982e1369680c5ce4d; 3.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89553
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89553
git.kernel.org
https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820a
git.kernel.org
https://git.kernel.org/stable/c/5e17160d41d92823f3379c1982e1369680c5ce4d
git.kernel.org
https://git.kernel.org/stable/c/e05c28bd6043d0fd0bea9c3fc49300a8871a1a81
git.kernel.org
https://git.kernel.org/stable/c/e60466011ac3a6b8045e6cc3c2cbb30d58039d2e
git.kernel.org
https://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409
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