{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63800", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.013Z", "datePublished": "2026-07-19T12:02:06.897Z", "dateUpdated": "2026-07-19T12:02:06.897Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T12:02:06.897Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npNFS: Fix use-after-free in pnfs_update_layout()\n\nWhen hitting the NFS_LAYOUT_RETURN branch in pnfs_update_layout(),\nthe code calls pnfs_prepare_to_retry_layoutget(lo). If it succeeds,\npnfs_put_layout_hdr(lo) is called before trace_pnfs_update_layout(),\nwhich still references 'lo'. This results in a use-after-free when the\ntracepoint accesses lo's fields.\n\nFix this by moving the tracepoint call before pnfs_put_layout_hdr(lo)."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nfs/pnfs.c"], "versions": [{"version": "06f58dbc49a23c99e5c0f246879ed16667f7bf8f", "lessThan": "4ad8b9a85dbf57ca532ee9e65ad7e6498bfbbf98", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "1f24b8302c77dcaf79c64c073877a3b9f4dd25d2", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "9c0fb5c09ae5bd68dc0038692af8127029cb0385", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "7e37e9b3e82ade881e1798e2f4fcc54aff7793c1", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "2883ddd7542b4437a2ab4908fe2773f690e20889", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "200e7637f4d6a1342987045eea72641524f909dc", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "9645aaf689aff57427ece3b9fa47d5b5399417f4", "status": "affected", "versionType": "git"}, {"version": "2c8d5fc37fe2384a9bdb6965443ab9224d46f704", "lessThan": "13e198a90ca4050f4bee8a3f23680389a6563ccc", "status": "affected", "versionType": "git"}, {"version": "aa2399f55eff4ec78330bb6fe55f9df53e5cae0c", "status": "affected", "versionType": "git"}, {"version": "5.10.9", "lessThan": "5.10.260", "status": "affected", "versionType": "semver"}, {"version": "5.4.91", "lessThan": "5.5", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nfs/pnfs.c"], "versions": [{"version": "5.11", "status": "affected"}, {"version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.260", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.211", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.177", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.144", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.95", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.38", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.3", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.9", "versionEndExcluding": "5.10.260"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15.211"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.1.177"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.6.144"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.12.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.18.38"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.1.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.2-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.91"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4ad8b9a85dbf57ca532ee9e65ad7e6498bfbbf98"}, {"url": "https://git.kernel.org/stable/c/1f24b8302c77dcaf79c64c073877a3b9f4dd25d2"}, {"url": "https://git.kernel.org/stable/c/9c0fb5c09ae5bd68dc0038692af8127029cb0385"}, {"url": "https://git.kernel.org/stable/c/7e37e9b3e82ade881e1798e2f4fcc54aff7793c1"}, {"url": "https://git.kernel.org/stable/c/2883ddd7542b4437a2ab4908fe2773f690e20889"}, {"url": "https://git.kernel.org/stable/c/200e7637f4d6a1342987045eea72641524f909dc"}, {"url": "https://git.kernel.org/stable/c/9645aaf689aff57427ece3b9fa47d5b5399417f4"}, {"url": "https://git.kernel.org/stable/c/13e198a90ca4050f4bee8a3f23680389a6563ccc"}], "title": "pNFS: Fix use-after-free in pnfs_update_layout()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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