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CVE-2026-89553

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

HIGH
7.8
CVSS Score
Published: September 11, 2026 at 07:44 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
3.1e758a3111914af7ee4351be86f1ac0efe87ed06e
Vendor states this is fixed in 208867763843aa82efcbe3b771f1b8e6c7aa820a (fixed)
Vendor states this is fixed in 5e17160d41d92823f3379c1982e1369680c5ce4d (fixed)
Vendor states this is fixed in e05c28bd6043d0fd0bea9c3fc49300a8871a1a81 (fixed)
Vendor states this is fixed in e60466011ac3a6b8045e6cc3c2cbb30d58039d2e (fixed)
Vendor states this is fixed in ff110e85837d7ecd83f36078107be240ff5ae409 (fixed)
Vendor states this is fixed in 3.1 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Source: cverecord
https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820a
Source: cverecord
https://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409
Source: cverecord
https://git.kernel.org/stable/c/e60466011ac3a6b8045e6cc3c2cbb30d58039d2e
Source: cverecord
https://git.kernel.org/stable/c/5e17160d41d92823f3379c1982e1369680c5ce4d
Source: cverecord
https://git.kernel.org/stable/c/e05c28bd6043d0fd0bea9c3fc49300a8871a1a81

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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