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CVE-2026-31404

In the Linux kernel, the following vulnerability has been resolved: NFSD: Defer sub-object cleanup in export put callbacks svc_export_put() calls path_put() and auth_domain_put() immediately when the last reference drops, before the RCU grace period. RCU readers in e_show() and c_show() access both ex_path (via seq_path/d_path) and ex_client->name (via seq_escape) without holding a reference. If cache_clean removes the entry and drops the last reference concurrently, the sub-objects are freed
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8bc25e47a4c98f64c0c3b639a7e5f3b69266d9bd84b1aefb4ee322966cf07265
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/export.c","fs/nfsd/export.h","fs/nfsd/nfsctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionTy…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfsd/export.c","fs/nfsd/export.h","fs/nfsd/nfsctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2829e80d29b627886d12b5ea40856d56b516e67d","status":"affected","version":"c224edca7af028828e2ad866b61d731b5e72b46d","versionType":"git"},{"lessThan":"f5ab1bec5fa18731e0b1b1e60c9a68667ac73ea2","status":"affected","version":"c224edca7af028828e2ad866b61d731b5e72b46d","versionType":"git"},{"lessThan":"48db892356d6cb80f6942885545de4a6dd8d2a29","status":"affected","v…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfsd/export.c","fs/nfsd/export.h","fs/nfsd/nfsctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionTy…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfsd/export.c","fs/nfsd/export.h","fs/nfsd/nfsctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2829e80d29b627886d12b5ea40856d56b516e67d","status":"affected","version":"c224edca7af028828e2ad866b61d731b5e72b46d","versionType":"git"},{"lessThan":"f5ab1bec5fa18731e0b1b1e60c9a68667ac73ea2","status":"affected","version":"c224edca7af028828e2ad866b61d731b5e72b46d","versionType":"git"},{"lessThan":"48db892356d6cb80f6942885545de4a6dd8d2a29","status":"affected","v…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/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:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/2829e80d29b627886d12b5ea40856d56b516e67d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/48db892356d6cb80f6942885545de4a6dd8d2a29"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f5ab1bec5fa18731e0b1b1e60c9a68667ac73ea2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:05dbb329e309e698a9eadef0f953fc2db70a6acec900914c2ce6eb961283f430 · sha256:3a8b1f4281015c76… · /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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