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CVE-2026-64017

In the Linux kernel, the following vulnerability has been resolved: blk-mq: pop cached request if it is usable When submitting a bio to blk-mq, if the task should sleep after peeking a cached request, but before it pops it, the plug flushes and calls blk_mq_free_plug_rqs, freeing the cached_rqs. This creates a use-after-free bug. Fix this by popping the cached request before any possible blocking calls if it is suitable for use. Popping this request first holds a queue reference, so avoid any
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4a0d770b206207001620e35c925962a8e637712683d3d4f786df4e2b99174356
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":"affected","product":"Linux","programFiles":["block/blk-mq.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":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["block/blk-mq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"388468f7e7d1eab092cf2a39fdfb502e52019ec6","status":"affected","version":"b0077e269f6c152e807fdac90b58caf012cdbaab","versionType":"git"},{"lessThan":"dc278e9bf2b9513a763353e6b9cc21e0f532954e","status":"affected","version":"b0077e269f6c152e807fdac90b58caf012cdbaab","versionType":"git"},{"status":"affected","version":"b5c8e0ff76d10f6bf70a7237678f27c20cf59bc9","versionType":"git"},{"status":"affected","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["block/blk-mq.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":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["block/blk-mq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"388468f7e7d1eab092cf2a39fdfb502e52019ec6","status":"affected","version":"b0077e269f6c152e807fdac90b58caf012cdbaab","versionType":"git"},{"lessThan":"dc278e9bf2b9513a763353e6b9cc21e0f532954e","status":"affected","version":"b0077e269f6c152e807fdac90b58caf012cdbaab","versionType":"git"},{"status":"affected","version":"b5c8e0ff76d10f6bf70a7237678f27c20cf59bc9","versionType":"git"},{"status":"affected","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/affected/0

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:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/388468f7e7d1eab092cf2a39fdfb502e52019ec6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/dc278e9bf2b9513a763353e6b9cc21e0f532954e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a635f20320336b6ea4b0403ae74bf6459f7760d3066f051e2d8cbf2e0e4a1f00 · sha256:c1f57d55b0e68301… · /containers/cna/references/1

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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