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CVE-2026-64138

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smb_validate_ntsd_sid() helper to safely validate Owner SID and Group SID inside the NT Security Descriptor (smb_ntsd) retrieved from the parent directory.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ae0c7081b1b58cb810fcc0333d1b6ffa0390aaf425288390964067a3bb9f3738
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/smb/server/smbacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/smbacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f0e5c9c663badc9982e6941322eef1cb17de0f11","status":"affected","version":"e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9","versionType":"git"},{"lessThan":"18d8db24b0a5b7be4829238dd4022236df02d421","status":"affected","version":"e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9","versionType":"git"},{"lessThan":"1c9d0646a9959752f11ca1080dc1ff26bd1756cb","status":"affected","version":"e2f34481b24db2fd634b5ed…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/smbacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/smbacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f0e5c9c663badc9982e6941322eef1cb17de0f11","status":"affected","version":"e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9","versionType":"git"},{"lessThan":"18d8db24b0a5b7be4829238dd4022236df02d421","status":"affected","version":"e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9","versionType":"git"},{"lessThan":"1c9d0646a9959752f11ca1080dc1ff26bd1756cb","status":"affected","version":"e2f34481b24db2fd634b5ed…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/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:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/18d8db24b0a5b7be4829238dd4022236df02d421"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/1c9d0646a9959752f11ca1080dc1ff26bd1756cb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/69f030cf95488ae1186c72ac8c66fd279664ea7f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/f0e5c9c663badc9982e6941322eef1cb17de0f11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0ecf5c87b361a4f682b9d21f8f61144220e94ae84bfb591569c92cd995b4c5d4 · sha256:b01859e8b5293796… · /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.

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