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CVE-2026-22989

In the Linux kernel, the following vulnerability has been resolved: nfsd: check that server is running in unlock_filesystem If we are trying to unlock the filesystem via an administrative interface and nfsd isn't running, it crashes the server. This happens currently because nfsd4_revoke_states() access state structures (eg., conf_id_hashtbl) that has been freed as a part of the server shutdown. [ 59.465072] Call trace: [ 59.465308] nfsd4_revoke_states+0x1b4/0x898 [nfsd] (P) [ 59.46583
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9255c57a5bdb85659cb6e4a7bda1e6181298f0f6dd6f3b25ac8085df2755bda2
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/nfsd/nfs4state.c","fs/nfsd/nfsctl.c","fs/nfsd/state.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.66","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionTy…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfsd/nfs4state.c","fs/nfsd/nfsctl.c","fs/nfsd/state.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d95499900fe52f3d461ed26b7a30bebea8f12914","status":"affected","version":"1ac3629bf012592cb0320e52a1cceb319a05ad17","versionType":"git"},{"lessThan":"e06c9f6c0f554148d4921c2a15bd054260a054ac","status":"affected","version":"1ac3629bf012592cb0320e52a1cceb319a05ad17","versionType":"git"},{"lessThan":"d0424066fcd294977f310964bed6f2a487fa4515","status":"affected",…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfsd/nfs4state.c","fs/nfsd/nfsctl.c","fs/nfsd/state.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.66","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionTy…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfsd/nfs4state.c","fs/nfsd/nfsctl.c","fs/nfsd/state.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d95499900fe52f3d461ed26b7a30bebea8f12914","status":"affected","version":"1ac3629bf012592cb0320e52a1cceb319a05ad17","versionType":"git"},{"lessThan":"e06c9f6c0f554148d4921c2a15bd054260a054ac","status":"affected","version":"1ac3629bf012592cb0320e52a1cceb319a05ad17","versionType":"git"},{"lessThan":"d0424066fcd294977f310964bed6f2a487fa4515","status":"affected",…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/d0424066fcd294977f310964bed6f2a487fa4515"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d95499900fe52f3d461ed26b7a30bebea8f12914"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/e06c9f6c0f554148d4921c2a15bd054260a054ac"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:899e21ae39cbfbf4f401baf676976bc41c08eb03a69b49b41c7eadb1c95cd32b · sha256:492a00cd2866f33d… · /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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