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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-31554

futex: Require sys_futex_requeue() to have identical flags

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 0f4b5f972216782a4acb1ae00dcb55173847c2ff to < 027145ace09fad4c7cbcd6c61fe9b429c63eb0e5affected
  • 0f4b5f972216782a4acb1ae00dcb55173847c2ff to < 18b7d09c2b794c71d4252f3ea2cf84ad12b73d6aaffected
  • 0f4b5f972216782a4acb1ae00dcb55173847c2ff to < e2f78c7ec1655fedd945366151ba54fcb9580508affected
  • 0f4b5f972216782a4acb1ae00dcb55173847c2ff to < 19f94b39058681dec64a10ebeb6f23fe7fc3f77aaffected

Linux Linux

Default version status: affected

  • 6.7affected
  • 0 to < 6.7unaffected
  • 6.12.80 to ≤ 6.12.*unaffected
  • 6.18.21 to ≤ 6.18.*unaffected
  • 6.19.11 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References