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CVE-2026-63800

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfs_update_layout() When hitting the NFS_LAYOUT_RETURN branch in pnfs_update_layout(), the code calls pnfs_prepare_to_retry_layoutget(lo). If it succeeds, pnfs_put_layout_hdr(lo) is called before trace_pnfs_update_layout(), which still references 'lo'. This results in a use-after-free when the tracepoint accesses lo's fields. Fix this by moving the tracepoint call before pnfs_put_layout_hdr(lo).
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ff9e45663e2434b6d4d7cf7593b9efb098adc9d4a172f1f9a4b154f1260ad7b6
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/pnfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfs/pnfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4ad8b9a85dbf57ca532ee9e65ad7e6498bfbbf98","status":"affected","version":"06f58dbc49a23c99e5c0f246879ed16667f7bf8f","versionType":"git"},{"lessThan":"1f24b8302c77dcaf79c64c073877a3b9f4dd25d2","status":"affected","version":"2c8d5fc37fe2384a9bdb6965443ab9224d46f704","versionType":"git"},{"lessThan":"9c0fb5c09ae5bd68dc0038692af8127029cb0385","status":"affected","version":"2c8d5fc37fe2384a9bdb6965443ab922…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/nfs/pnfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/nfs/pnfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4ad8b9a85dbf57ca532ee9e65ad7e6498bfbbf98","status":"affected","version":"06f58dbc49a23c99e5c0f246879ed16667f7bf8f","versionType":"git"},{"lessThan":"1f24b8302c77dcaf79c64c073877a3b9f4dd25d2","status":"affected","version":"2c8d5fc37fe2384a9bdb6965443ab9224d46f704","versionType":"git"},{"lessThan":"9c0fb5c09ae5bd68dc0038692af8127029cb0385","status":"affected","version":"2c8d5fc37fe2384a9bdb6965443ab922…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/13e198a90ca4050f4bee8a3f23680389a6563ccc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/1f24b8302c77dcaf79c64c073877a3b9f4dd25d2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/200e7637f4d6a1342987045eea72641524f909dc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/2883ddd7542b4437a2ab4908fe2773f690e20889"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/4ad8b9a85dbf57ca532ee9e65ad7e6498bfbbf98"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/7e37e9b3e82ade881e1798e2f4fcc54aff7793c1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/9645aaf689aff57427ece3b9fa47d5b5399417f4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/9c0fb5c09ae5bd68dc0038692af8127029cb0385"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dd98e9b79fd2b3f7a72e28b79aa0f1d80fefb424f8a6b7102768681e3f9de1b7 · sha256:f4baf7a883c4d4a5… · /containers/cna/references/2

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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