CVE-2026-31554High· 7.8▾ TwilightIn 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 d…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
0.2% → 0.2%
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.
Linux >= 0f4b5f972216782a4acb1ae00dcb55173847c2ff < 027145ace09fad4c7cbcd6c61fe9b429c63eb0e5Linux >= 0f4b5f972216782a4acb1ae00dcb55173847c2ff < 18b7d09c2b794c71d4252f3ea2cf84ad12b73d6aLinux >= 0f4b5f972216782a4acb1ae00dcb55173847c2ff < e2f78c7ec1655fedd945366151ba54fcb9580508Linux >= 0f4b5f972216782a4acb1ae00dcb55173847c2ff < 19f94b39058681dec64a10ebeb6f23fe7fc3f77aLinux 6.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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