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vuln-cve/data/2026/80xxx/CVE-2026-80820.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-80820",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-08-26T14:34:25.795Z",
"datePublished": "2026-09-04T15:13:41.355Z",
"dateUpdated": "2026-09-04T15:13:41.355Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-09-04T15:13:41.355Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't livelock in scrub on a circular unlinked list\n\nLOLLM points out that online fsck can livelock if an unlinked inode list\ncontains a loop. Use a bitmap to detect cycles."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/xfs/scrub/agheader.c",
"fs/xfs/scrub/agheader_repair.c"
],
"versions": [
{
"version": "a12890aebb895951720ff884eab1c99a30645b29",
"lessThan": "599453f83458b57995290a1d31200c263e2c2691",
"status": "affected",
"versionType": "git"
},
{
"version": "a12890aebb895951720ff884eab1c99a30645b29",
"lessThan": "159d162fe80bd56573cafde5801bd5a90a3dd1ac",
"status": "affected",
"versionType": "git"
},
{
"version": "a12890aebb895951720ff884eab1c99a30645b29",
"lessThan": "56407a61a8bb85b884de802d39635abdb0ea7408",
"status": "affected",
"versionType": "git"
},
{
"version": "a12890aebb895951720ff884eab1c99a30645b29",
"lessThan": "527eaaefddb6ec5c83a06c9a1559960dd6361753",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/xfs/scrub/agheader.c",
"fs/xfs/scrub/agheader_repair.c"
],
"versions": [
{
"version": "4.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.15",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.106",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.47",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1.11",
"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": "4.15",
"versionEndExcluding": "6.12.106"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "6.18.47"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "7.1.11"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.15",
"versionEndExcluding": "7.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/599453f83458b57995290a1d31200c263e2c2691"
},
{
"url": "https://git.kernel.org/stable/c/159d162fe80bd56573cafde5801bd5a90a3dd1ac"
},
{
"url": "https://git.kernel.org/stable/c/56407a61a8bb85b884de802d39635abdb0ea7408"
},
{
"url": "https://git.kernel.org/stable/c/527eaaefddb6ec5c83a06c9a1559960dd6361753"
}
],
"title": "xfs: don't livelock in scrub on a circular unlinked list",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}