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CVE-2026-53396

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posix_acl leak and ignored error in nfsd4_create_file nfsd4_create_file() has two bugs in its ACL handling: The return value of nfsd4_acl_to_attr() is silently discarded. When the NFSv4-to-POSIX ACL conversion fails (e.g., -EINVAL for unsupported ACE types), the file is created without any ACL and the client receives NFS4_OK. This violates RFC 7530/8881 which require the server to reject unsupported attributes on
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:85e53d8d5147258fe8f9314a0aacdb175b1361b6bb0968af06451a91ea6eef13
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/nfsd/nfs4proc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"18cf006a08babec0bbac2a3784f8f28e56e47490","status":"affected","version":"7ab96df840e60eb933abfe65fc5fe44e72f16dc0","versionType":"git"},{"lessThan":"24c975bbdd564d7d0ad90294bfa69729830345de","status":"affected","version":"7ab96df840e60eb933abfe65fc5fe44e72f16dc0","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfsd/nfs4proc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfsd/nfs4proc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"18cf006a08babec0bbac2a3784f8f28e56e47490","status":"affected","version":"7ab96df840e60eb933abfe65fc5fe44e72f16dc0","versionType":"git"},{"lessThan":"24c975bbdd564d7d0ad90294bfa69729830345de","status":"affected","version":"7ab96df840e60eb933abfe65fc5fe44e72f16dc0","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfsd/nfs4proc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/18cf006a08babec0bbac2a3784f8f28e56e47490"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/24c975bbdd564d7d0ad90294bfa69729830345de"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:306fdaff64ad05af1d2594dd150547a76fed4d778606d4a36092e7952f5f887d · sha256:f9b168240a41002a… · /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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