CVE-2026-89553

nouveau/gem: reserve the bo in the info ioctl around the vma lookup

State: Published
Severity: 7.8 High
Published: Sep 11, 2026
Updated: Oct 30, 2026
Reserved: Sep 11, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e758a3111914af7ee4351be86f1ac0efe87ed06e to before 3e9c9090d4cc5a61ab5067ac5502c4fd37891b97Affected e758a3111914af7ee4351be86f1ac0efe87ed06e to before 24340ab41c33e16b3d64d89cb738ecd83c78de49Affected e758a3111914af7ee4351be86f1ac0efe87ed06e to before f57e0d3bee3f7a459c048e10fd1cbcfd1dac2e0fAffected e758a3111914af7ee4351be86f1ac0efe87ed06e to before e05c28bd6043d0fd0bea9c3fc49300a8871a1a81Affected e758a3111914af7ee4351be86f1ac0efe87ed06e to before 208867763843aa82efcbe3b771f1b8e6c7aa820aAffected e758a3111914af7ee4351be86f1ac0efe87ed06e to before ff110e85837d7ecd83f36078107be240ff5ae409Affected e758a3111914af7ee4351be86f1ac0efe87ed06e to before e60466011ac3a6b8045e6cc3c2cbb30d58039d2eAffected e758a3111914af7ee4351be86f1ac0efe87ed06e to before 5e17160d41d92823f3379c1982e1369680c5ce4dAffected
LinuxLinux	3.1Affected before 3.1Not affected 5.10.273 through 5.10.Not affected 5.15.224 through 5.15.Not affected 6.1.191 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

e758a3111914af7ee4351be86f1ac0efe87ed06e to before 3e9c9090d4cc5a61ab5067ac5502c4fd37891b97Affected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before 24340ab41c33e16b3d64d89cb738ecd83c78de49Affected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before f57e0d3bee3f7a459c048e10fd1cbcfd1dac2e0fAffected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before e05c28bd6043d0fd0bea9c3fc49300a8871a1a81Affected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before 208867763843aa82efcbe3b771f1b8e6c7aa820aAffected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before ff110e85837d7ecd83f36078107be240ff5ae409Affected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before e60466011ac3a6b8045e6cc3c2cbb30d58039d2eAffected
e758a3111914af7ee4351be86f1ac0efe87ed06e to before 5e17160d41d92823f3379c1982e1369680c5ce4dAffected

LinuxLinux

3.1Affected
before 3.1Not affected
5.10.273 through 5.10.*Not affected
5.15.224 through 5.15.*Not affected
6.1.191 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

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