CVE-2026-89553
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e758a3111914af7ee4351be86f1ac0efe87ed06e < 208867763843aa82efcbe3b771f1b8e6c7aa820a | affected |
| Linux | Linux | e758a3111914af7ee4351be86f1ac0efe87ed06e < ff110e85837d7ecd83f36078107be240ff5ae409 | affected |
| Linux | Linux | e758a3111914af7ee4351be86f1ac0efe87ed06e < e60466011ac3a6b8045e6cc3c2cbb30d58039d2e | affected |
| Linux | Linux | e758a3111914af7ee4351be86f1ac0efe87ed06e < 5e17160d41d92823f3379c1982e1369680c5ce4d | affected |
| Linux | Linux | 3.1 | affected |
| Linux | Linux | 0 < 3.1 | unaffected |
| Linux | Linux | 6.12.109 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.50 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.4 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820a
- https://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409
- https://git.kernel.org/stable/c/e60466011ac3a6b8045e6cc3c2cbb30d58039d2e
- https://git.kernel.org/stable/c/5e17160d41d92823f3379c1982e1369680c5ce4d
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