CVE-2026-89553

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-09-11 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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 Software (9)

VendorProductVersion
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < 3e9c9090d4cc5a61ab5067ac5502c4fd37891b97
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < 24340ab41c33e16b3d64d89cb738ecd83c78de49
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < f57e0d3bee3f7a459c048e10fd1cbcfd1dac2e0f
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < e05c28bd6043d0fd0bea9c3fc49300a8871a1a81
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < 208867763843aa82efcbe3b771f1b8e6c7aa820a
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < ff110e85837d7ecd83f36078107be240ff5ae409
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < e60466011ac3a6b8045e6cc3c2cbb30d58039d2e
Linux Linux e758a3111914af7ee4351be86f1ac0efe87ed06e < 5e17160d41d92823f3379c1982e1369680c5ce4d
Linux Linux 3.1

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.14%
Raw Score 0.001350
Percentile 2.9%
Date 2026-11-01

EPSS Trend

2026-11-01
0.00135
2026-10-31
0.00135
2026-10-30
0.00134
2026-10-29
0.00134

Intelligence Sources

mitre ref →
nvd ref →