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CVE-2026-53392

In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count ff_layout_alloc_lseg() decodes the filehandle-version array count from the flexfiles layout body. The value is used as the count for kzalloc_objs(), and the current code only rejects NULL. A zero count yields ZERO_SIZE_PTR, which can be stored in dss_info->fh_versions even though later flexfiles paths assume that at least one filehandle version exists. Reject fh_count ==
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:79e7829b96984b8d7eff51064776a2f18050a0e33784feaf877074c0aedd8951
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/nfs/flexfilelayout/flexfilelayout.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.0"},{"lessThan":"4.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"sem…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfs/flexfilelayout/flexfilelayout.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9033591535c066726f5b505126ccb4068b98fa4f","status":"affected","version":"d67ae825a59d639e4d8b82413af84d854617a87e","versionType":"git"},{"lessThan":"18cc6d57a14fa65ab2a2b52279f549041c4bc9cf","status":"affected","version":"d67ae825a59d639e4d8b82413af84d854617a87e","versionType":"git"},{"lessThan":"be7829715e341b42846437dd9e721005db59f0cc","status":"affected","version":"d67ae82…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfs/flexfilelayout/flexfilelayout.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.0"},{"lessThan":"4.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"sem…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfs/flexfilelayout/flexfilelayout.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9033591535c066726f5b505126ccb4068b98fa4f","status":"affected","version":"d67ae825a59d639e4d8b82413af84d854617a87e","versionType":"git"},{"lessThan":"18cc6d57a14fa65ab2a2b52279f549041c4bc9cf","status":"affected","version":"d67ae825a59d639e4d8b82413af84d854617a87e","versionType":"git"},{"lessThan":"be7829715e341b42846437dd9e721005db59f0cc","status":"affected","version":"d67ae82…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/18cc6d57a14fa65ab2a2b52279f549041c4bc9cf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/2131ed64b767ffa8bcdb3677d90f3964e39aabc8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/2c6bb3c40bc24f6aa8dfbe6fe98c3ad6389203f2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/7779c85028a0676fb190cde4f0c540f4f8e97761"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/9033591535c066726f5b505126ccb4068b98fa4f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/be7829715e341b42846437dd9e721005db59f0cc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d8c90c7cc061265d5f2813a1f5c82ef2f4707e67"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/eeabb9020721db6bc132e68eeae380b8d4fb4b04"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c2b80db7cb33552a68d1e9c8fa720d88510db5467a03519a68d2e0099d0548f3 · sha256:de9c6cec773dee42… · /containers/cna/references/3

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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