CVE-2026-31554
Published: Apr 24, 2026
Modified: May 11, 2026
CVSS v3.1
7.8
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 0f4b5f972216782a4acb1ae00dcb55173847c2ff - < 027145ace09fad4c7cbcd6c61fe9b429c63eb0e5affected 0f4b5f972216782a4acb1ae00dcb55173847c2ff - < 18b7d09c2b794c71d4252f3ea2cf84ad12b73d6aaffected 0f4b5f972216782a4acb1ae00dcb55173847c2ff - < e2f78c7ec1655fedd945366151ba54fcb9580508affected 0f4b5f972216782a4acb1ae00dcb55173847c2ff - < 19f94b39058681dec64a10ebeb6f23fe7fc3f77a |
Linux | Linux | affected 6.7unaffected 0 - < 6.7unaffected 6.12.80 - <= 6.12.*unaffected 6.18.21 - <= 6.18.*unaffected 6.19.11 - <= 6.19.*+1 more versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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