CVE-2026-89553
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Record status
- Received
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820a
- https://git.kernel.org/stable/c/24340ab41c33e16b3d64d89cb738ecd83c78de49
- https://git.kernel.org/stable/c/3e9c9090d4cc5a61ab5067ac5502c4fd37891b97
- 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/f57e0d3bee3f7a459c048e10fd1cbcfd1dac2e0f
- https://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409