Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: futex: Require sys_futex_requeue() to have identical flags Nicholas reported that his LLM found it was possible to create a UaF when sys_futex_requeue() is used with different flags. The initial motivation for allowing different flags was the variable sized futex, but since that hasn't been merged (yet), simply mandate the flags are identical, as is the case for the old style sys_futex() requeue operations.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.7.1, < 6.12.80 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/027145ace09fad4c7cbcd6c61fe9b429c63eb0e5Patch
- https://git.kernel.org/stable/c/18b7d09c2b794c71d4252f3ea2cf84ad12b73d6aPatch
- https://git.kernel.org/stable/c/19f94b39058681dec64a10ebeb6f23fe7fc3f77aPatch
- https://git.kernel.org/stable/c/e2f78c7ec1655fedd945366151ba54fcb9580508Patch
FAQ
What is CVE-2026-31554?
CVE-2026-31554 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: futex: Require sys_futex_requeue() to have identical flags Nicholas reported that his LLM found it was possible to create a UaF wh...
How severe is CVE-2026-31554?
CVE-2026-31554 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31554?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.