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CVE-2026-89553

HIGHCVSS 7.8/10EPSS 0.13%

Last modified

CVE-2026-89553 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.13%

3.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e758a3111914af7ee4351be86f1ac0efe87ed06e, < e05c28bd6043d0fd0bea9c3fc49300a8871a1a81; >= e758a3111914af7ee4351be86f1ac0efe87ed06e, < 208867763843aa82efcbe3b771f1b8e6c7aa820a; >= e758a3111914af7ee4351be86f1ac0efe87ed06e, < ff110e85837d7ecd83f36078107be240ff5ae409; >= e758a3111914af7ee4351be86f1ac0efe87ed06e, < e60466011ac3a6b8045e6cc3c2cbb30d58039d2e; >= e758a3111914af7ee4351be86f1ac0efe87ed06e, < 5e17160d41d92823f3379c1982e1369680c5ce4d
LinuxLinux3.1

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89553?
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.
How severe is CVE-2026-89553?
CVE-2026-89553 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89553?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST