7.8High
CVE-2026-89553
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.
What this means for your business
- An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.1% chance of attack attempts being seen in the next 30 days, ranking above 3% of all known flaws.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 7.8 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Assigned by
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Dates
- Published
- 2026-09-11
- Last modified
- 2026-09-14
- Sources
- NVD
References
- https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820a
- https://git.kernel.org/stable/c/5e17160d41d92823f3379c1982e1369680c5ce4d
- https://git.kernel.org/stable/c/e05c28bd6043d0fd0bea9c3fc49300a8871a1a81
- https://git.kernel.org/stable/c/e60466011ac3a6b8045e6cc3c2cbb30d58039d2e
- https://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409