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CVE-2026-64426

In the Linux kernel, the following vulnerability has been resolved: io_uring/nop: fix file reference leak with IOSQE_FIXED_FILE NOP file-acquisition support choses between a fixed (registered) file and a normal fget()'d file based on its own IORING_NOP_FIXED_FILE flag in sqe->nop_flags. However, a request's REQ_F_FIXED_FILE is set independently from the generic IOSQE_FIXED_FILE sqe flag during request init, before the issue handler runs. If a NOP is submitted with IOSQE_FIXED_FILE set (so REQ
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b900f3645f3bb38916fa3a66b64f3dda27322f53827f61bc2dbb1b8abaddc1a2
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":["io_uring/nop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","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:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["io_uring/nop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"722869fcff598fad20d5ab79c305897a7534708b","status":"affected","version":"a85f31052bce52111b4e9d5a536003481d0421d0","versionType":"git"},{"lessThan":"7267717f35787167fcce4bc14f6ef3fa06682dcf","status":"affected","version":"a85f31052bce52111b4e9d5a536003481d0421d0","versionType":"git"},{"lessThan":"2564ca2e31bd8ee8348362941af2ee4671e487ca","status":"affected","version":"a85f31052bce52111b4e9d5a5360034…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["io_uring/nop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","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:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["io_uring/nop.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"722869fcff598fad20d5ab79c305897a7534708b","status":"affected","version":"a85f31052bce52111b4e9d5a536003481d0421d0","versionType":"git"},{"lessThan":"7267717f35787167fcce4bc14f6ef3fa06682dcf","status":"affected","version":"a85f31052bce52111b4e9d5a536003481d0421d0","versionType":"git"},{"lessThan":"2564ca2e31bd8ee8348362941af2ee4671e487ca","status":"affected","version":"a85f31052bce52111b4e9d5a5360034…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/2564ca2e31bd8ee8348362941af2ee4671e487ca"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/722869fcff598fad20d5ab79c305897a7534708b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/7267717f35787167fcce4bc14f6ef3fa06682dcf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c508917be82be67c47750bf8e2648c8628b02edbd54196f81b621a3bab08c15f · sha256:2dce17b284689429… · /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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