CVE-2026-99080 (GCVE-0-2026-99080)
Vulnerability from cvelistv5 – Published: 2026-10-23 12:23 – Updated: 2026-10-23 12:23
VLAI
EPSS
VEX
Title
fs: Free any excess xarray nodes in clear_inode()
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs: Free any excess xarray nodes in clear_inode()
For many years we've had a hard to hit leak of xarray nodes. Hugh
documented it well in commit 786b31121a2c. Recently people and
syzbot have found ways to force it to happen with madvise. Rather
than fix the leaks where they happen, just call xa_destroy() which
has the side-effect of cycling the i_pages lock.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f1c966eb6ed5e190c90a56c5bdaa69967de39f21
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 21f51434c47d8628b62275ae6c6ad6b573abcd02 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 50cff3f112d64db6e5f57355f79bc837db8fe132 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 43f830e2bb84b22ca824b20bb861d823ecb520bd (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ee3f011250104129893d8e9599147e457d4d7280 (git) Affected: 0 , < 6.6.160 (semver) Affected: 0 , < 6.12.113 (semver) Affected: 0 , < 6.18.57 (semver) Affected: 0 , < 7.2.11 (semver) |
guessed | |
| Linux | Linux |
Unaffected:
6.6.160 , ≤ 6.6.*
(semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver) Unaffected: 6.18.57 , ≤ 6.18.* (semver) Unaffected: 7.2.11 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
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"product": "Linux",
"programFiles": [
"fs/inode.c"
],
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"vendor": "Linux",
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"status": "affected",
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"versionType": "git"
},
{
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},
{
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"versionType": "semver"
},
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"versionType": "semver"
}
]
},
{
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],
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"vendor": "Linux",
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"status": "unaffected",
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"versionType": "semver"
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{
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"status": "unaffected",
"version": "6.12.113",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
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{
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},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: Free any excess xarray nodes in clear_inode()\n\nFor many years we\u0027ve had a hard to hit leak of xarray nodes. Hugh\ndocumented it well in commit 786b31121a2c. Recently people and\nsyzbot have found ways to force it to happen with madvise. Rather\nthan fix the leaks where they happen, just call xa_destroy() which\nhas the side-effect of cycling the i_pages lock."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T12:23:27.393Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"url": "https://git.kernel.org/stable/c/f1c966eb6ed5e190c90a56c5bdaa69967de39f21"
},
{
"url": "https://git.kernel.org/stable/c/21f51434c47d8628b62275ae6c6ad6b573abcd02"
},
{
"url": "https://git.kernel.org/stable/c/50cff3f112d64db6e5f57355f79bc837db8fe132"
},
{
"url": "https://git.kernel.org/stable/c/43f830e2bb84b22ca824b20bb861d823ecb520bd"
},
{
"url": "https://git.kernel.org/stable/c/ee3f011250104129893d8e9599147e457d4d7280"
}
],
"title": "fs: Free any excess xarray nodes in clear_inode()",
"x_generator": {
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}
}
},
"cveMetadata": {
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"cveId": "CVE-2026-99080",
"datePublished": "2026-10-23T12:23:27.393Z",
"dateReserved": "2026-09-25T10:25:14.390Z",
"dateUpdated": "2026-10-23T12:23:27.393Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-99080",
"date": "2026-10-24",
"epss": "0.00209",
"percentile": "0.10498"
},
"microsoft_vex": {
"current_release_date": "2026-10-25T01:06:48.000Z",
"cve": "CVE-2026-99080",
"id": "msrc_CVE-2026-99080",
"initial_release_date": "2026-10-25T01:05:20.000Z",
"product_status:under_investigation": "2",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "fs: Free any excess xarray nodes in clear_inode()",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-99080.json",
"version": "2"
},
"nvd": {
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],
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}
],
"id": "CVE-2026-99080",
"lastModified": "2026-10-23T13:17:32.160",
"metrics": {},
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
}
}
}
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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