nouveau/gem: reserve the bo in the info ioctl around the vma lookup (CVE-2026-89553) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89553

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

Answer in brief

CVE-2026-89553 records a Unknown severity vulnerability in nouveau/gem: reserve the bo in the info ioctl around the vma lookup. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=e758a3111914af7ee4351be86f1ac0efe87ed06e <208867763843aa82efcbe3b771f1b8e6c7aa820a \|\| >=e758a3111914af7ee4351be86f1ac0efe87ed06e <ff110e85837d7ecd83f36078107be240ff5ae409 \|\| >=e758a3111914af7ee4351be86f1ac0efe87ed06e <e60466011ac3a6b8045e6cc3c2cbb30d58039d2e \|\| >=e758a3111914af7ee4351be86f1ac0efe87ed06e <5e17160d41d92823f3379c1982e1369680c5ce4d	208867763843aa82efcbe3b771f1b8e6c7aa820a, ff110e85837d7ecd83f36078107be240ff5ae409, e60466011ac3a6b8045e6cc3c2cbb30d58039d2e, 5e17160d41d92823f3379c1982e1369680c5ce4d
Linux/Linuxgeneric	3.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 208867763843aa82efcbe3b771f1b8e6c7aa820a if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.