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CVE-2026-64262

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: end fuse_req on io-uring cancel task work When io_uring delivers task work with tw.cancel set (PF_EXITING, PF_KTHREAD fallback, or percpu_ref_is_dying on the ring context), fuse_uring_send_in_task() takes the cancel branch, assigns -ECANCELED, and falls through to fuse_uring_send(). That path only flips the entry to FRRS_USERSPACE and completes the io_uring cmd; it never discharges the ring entry's owning reference
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ccbc4695eadd32e18c6bdf9f537509efa7c8cb0128268a915e316ef4c2e37bc8
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":["fs/fuse/dev_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bb476ef8e1027a9d509fbaaf81f5061a07e9e5a7","status":"affected","version":"c2c9af9a0b13261c36909036057a116f2edb5e1a","versionType":"git"},{"lessThan":"4f45f276d5b4412eade6f74f2e37f3adba0473ed","status":"affected","version":"c2c9af9a0b13261c36909036057a116f2edb5e1a","versionType":"git"},{"lessThan":"bea4fe98204b6ce7eb8e29f7bf867dd7619b3ddd","status":"affected","version":"c2c9af9a0b13261c3690903605…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fuse/dev_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/fuse/dev_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bb476ef8e1027a9d509fbaaf81f5061a07e9e5a7","status":"affected","version":"c2c9af9a0b13261c36909036057a116f2edb5e1a","versionType":"git"},{"lessThan":"4f45f276d5b4412eade6f74f2e37f3adba0473ed","status":"affected","version":"c2c9af9a0b13261c36909036057a116f2edb5e1a","versionType":"git"},{"lessThan":"bea4fe98204b6ce7eb8e29f7bf867dd7619b3ddd","status":"affected","version":"c2c9af9a0b13261c3690903605…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fuse/dev_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /containers/cna/affected/1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/4f45f276d5b4412eade6f74f2e37f3adba0473ed"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/bb476ef8e1027a9d509fbaaf81f5061a07e9e5a7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/bea4fe98204b6ce7eb8e29f7bf867dd7619b3ddd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7925976b4df12eb8b4053d2076738569194de75b41be171a3833c8402b2443f · sha256:f6abca9e9343ff69… · /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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