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vuln-cve/data/2026/72xxx/CVE-2026-72218.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-72218",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-08-09T03:40:39.913Z",
"datePublished": "2026-08-15T05:54:11.672Z",
"dateUpdated": "2026-11-06T16:55:22.326Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-17T05:10:33.204Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure\n\nThe cached-file path in nlm_lookup_file() reaches the found: label\nunconditionally, even when nlm_do_fopen() fails. At that label\n*result and file->f_count are updated before the error is returned.\nThe wrappers nlm3svc_lookup_file() and nlm4svc_lookup_file() then\nbail out of their switch without copying *result back to their\ncaller, so the proc handler's local nlm_file pointer remains NULL\nand the cleanup path skips nlm_release_file(). The f_count\nincrement is never released, and nlm_traverse_files() can no\nlonger reap the file because its refcount never returns to zero\nbetween requests.\n\nShort-circuit the cached path so neither *result nor f_count is\ntouched when nlm_do_fopen() fails on a hashed nlm_file."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/lockd/svcsubs.c"
],
"versions": [
{
"version": "e580323ac0b51ad10ec2e181d1f777479b7983e7",
"lessThan": "6cd84cefd8b73e85b9eda17b319bd40a670f3a38",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "fe3b45b56b6c3d4b6b341de27fa291005287a21c",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "cb3420c047957e565101585bb4f15e1a6e3de6b0",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "7ce4c23e783e766507b2cef27bbf97e9ca944f1a",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "84008bf1860e0ef8059a7583a1163f36b704d08a",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "46d59ff421824b6483549d87f14efffbbbd1f6cb",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "3a5c55a19cad62f2973be25fe96a1a9e7f618e8a",
"status": "affected",
"versionType": "git"
},
{
"version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
"lessThan": "70a38f87bed7f0694fd07988b47b2db1e10d8df3",
"status": "affected",
"versionType": "git"
},
{
"version": "5.10.220",
"lessThan": "5.10.261",
"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/lockd/svcsubs.c"
],
"versions": [
{
"version": "5.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.15",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.261",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.212",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.178",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.145",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.97",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.40",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1.5",
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.2",
"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": "5.10.220",
"versionEndExcluding": "5.10.261"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "5.15.212"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.1.178"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.6.145"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.12.97"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.18.40"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "7.1.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "7.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/6cd84cefd8b73e85b9eda17b319bd40a670f3a38"
},
{
"url": "https://git.kernel.org/stable/c/fe3b45b56b6c3d4b6b341de27fa291005287a21c"
},
{
"url": "https://git.kernel.org/stable/c/cb3420c047957e565101585bb4f15e1a6e3de6b0"
},
{
"url": "https://git.kernel.org/stable/c/7ce4c23e783e766507b2cef27bbf97e9ca944f1a"
},
{
"url": "https://git.kernel.org/stable/c/84008bf1860e0ef8059a7583a1163f36b704d08a"
},
{
"url": "https://git.kernel.org/stable/c/46d59ff421824b6483549d87f14efffbbbd1f6cb"
},
{
"url": "https://git.kernel.org/stable/c/3a5c55a19cad62f2973be25fe96a1a9e7f618e8a"
},
{
"url": "https://git.kernel.org/stable/c/70a38f87bed7f0694fd07988b47b2db1e10d8df3"
}
],
"title": "lockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-72218",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-06T16:52:45.774483Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-06T16:55:22.326Z"
}
}
]
}
}