What’s Vulnerable › Vulnerabilities

CVE-2026-89553: nouveau/gem: reserve the bo in the info ioctl around the vma lookup

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-10-30

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.

Affected products

• Linux: 3.1 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

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

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