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CVE-2026-31554

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f2b3c6f1098d249c80cab36ed6b97a376eb168e0774df18f8d9c68ddb860ab0d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/futex/syscalls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"027145ace09fad4c7cbcd6c61fe9b429c63eb0e5","status":"affected","version":"0f4b5f972216782a4acb1ae00dcb55173847c2ff","versionType":"git"},{"lessThan":"18b7d09c2b794c71d4252f3ea2cf84ad12b73d6a","status":"affected","version":"0f4b5f972216782a4acb1ae00dcb55173847c2ff","versionType":"git"},{"lessThan":"e2f78c7ec1655fedd945366151ba54fcb9580508","status":"affected","version":"0f4b5f972216782a4acb1a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/futex/syscalls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThan…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/futex/syscalls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"027145ace09fad4c7cbcd6c61fe9b429c63eb0e5","status":"affected","version":"0f4b5f972216782a4acb1ae00dcb55173847c2ff","versionType":"git"},{"lessThan":"18b7d09c2b794c71d4252f3ea2cf84ad12b73d6a","status":"affected","version":"0f4b5f972216782a4acb1ae00dcb55173847c2ff","versionType":"git"},{"lessThan":"e2f78c7ec1655fedd945366151ba54fcb9580508","status":"affected","version":"0f4b5f972216782a4acb1a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/futex/syscalls.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThan…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/027145ace09fad4c7cbcd6c61fe9b429c63eb0e5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/18b7d09c2b794c71d4252f3ea2cf84ad12b73d6a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/19f94b39058681dec64a10ebeb6f23fe7fc3f77a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/e2f78c7ec1655fedd945366151ba54fcb9580508"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5fc4f7760e4ab7086d5407db03548f9f496b52aa184b5cee30c3a050238f750f · sha256:7613f0a56f9ff4e5… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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