Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-64259

In the Linux kernel, the following vulnerability has been resolved: fuse-uring: make a fuse_req on SQE commit only findable after memcpy Bad userspace might try to trick us and send commit SQEs request unique / commit-id of requests that are not even send to fuse-server (io_uring_cmd_done() not called) yet. fuse_uring_commit_fetch() ends the fuse request when the ring entry has a wrong state, but that could have caused a use-after-free with the memcpy operations in fuse_uring_send_in_task().
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:88f43e1ca16ca9db0232619af7c97161bc1197bef2c1f38944474637cfa5fd85
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":["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:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/affected/1

{"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":"e1711479e9068ea31b31353a702a51e639c3d059","status":"affected","version":"c090c8abae4b6b77a1bee116aa6c385456ebef96","versionType":"git"},{"lessThan":"a635f427d57e2012102ae4886b48d8955c59fb86","status":"affected","version":"c090c8abae4b6b77a1bee116aa6c385456ebef96","versionType":"git"},{"lessThan":"1efd3d474fc0ba74dfd984249bca78807d739812","status":"affected","version":"c090c8abae4b6b77a1bee116aa…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"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:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/affected/1
{"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":"e1711479e9068ea31b31353a702a51e639c3d059","status":"affected","version":"c090c8abae4b6b77a1bee116aa6c385456ebef96","versionType":"git"},{"lessThan":"a635f427d57e2012102ae4886b48d8955c59fb86","status":"affected","version":"c090c8abae4b6b77a1bee116aa6c385456ebef96","versionType":"git"},{"lessThan":"1efd3d474fc0ba74dfd984249bca78807d739812","status":"affected","version":"c090c8abae4b6b77a1bee116aa…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /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:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/1efd3d474fc0ba74dfd984249bca78807d739812"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a635f427d57e2012102ae4886b48d8955c59fb86"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e1711479e9068ea31b31353a702a51e639c3d059"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a0e3f1aacfbca5f1102bda5d10e95f7aee1e1f82fe66cafa4b8fc41ebf99618 · sha256:1adc7836fc735963… · /containers/cna/references/0

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.

← Back to CVE Explorer