CVE-2026-90318
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: fat: release buffer head after rebuilding parent fat_scan_logstart() leaves the matching directory entry's buffer head in sinfo.bh for the caller to release, just like fat_scan(). fat_rebuild_parent() uses the directory entry to rebuild the parent inode for the nostale_ro NFS export path, but does not release sinfo.bh after a successful scan. Release it once fat_build_inode() has consumed the directory entry data.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-17 17:17:29.683000
Last modified
2026-10-19 09:19:25.783000
View original CVE JSON
{
"id": "CVE-2026-90318",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-09-17T17:17:29.683",
"lastModified": "2026-10-19T09:19:25.783",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfat: release buffer head after rebuilding parent\n\nfat_scan_logstart() leaves the matching directory entry's buffer head in\nsinfo.bh for the caller to release, just like fat_scan().\n\nfat_rebuild_parent() uses the directory entry to rebuild the parent inode\nfor the nostale_ro NFS export path, but does not release sinfo.bh after a\nsuccessful scan. Release it once fat_build_inode() has consumed the\ndirectory entry data."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"fs/fat/nfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "f1e6fb0ab451dae8523fbb8c119a653b2730e938",
"lessThan": "5e44b6944e11fd6647f028219ad0be4e85e9acee",
"versionType": "git",
"status": "affected"
},
{
"version": "f1e6fb0ab451dae8523fbb8c119a653b2730e938",
"lessThan": "d2a86329152c69a6200c15b2bf618755f8563826",
"versionType": "git",
"status": "affected"
},
{
"version": "f1e6fb0ab451dae8523fbb8c119a653b2730e938",
"lessThan": "0f18d712ba9c980e05b7e33a27cde4fe3ed2d393",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "e38587d98d1ceac608420052c0cdd901d25878f3",
"versionType": "git",
"status": "affected"
},
{
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"versionType": "git",
"status": "affected"
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"lessThan": "571ea4263d69df1b48578e4314a828ecd0604755",
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"status": "affected"
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{
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"versionType": "git",
"status": "affected"
},
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"lessThan": "83e98dbf19ab64e8528e101e20f8d50e1aaa68a8",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"fs/fat/nfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "3.10",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.10",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.270",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.221",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.188",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.157",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.110",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.52",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.6",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/0f18d712ba9c980e05b7e33a27cde4fe3ed2d393",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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},
{
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},
{
"url": "https://git.kernel.org/stable/c/83e98dbf19ab64e8528e101e20f8d50e1aaa68a8",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c6a67aa438179cad40f8ae45469e304338d65c0a",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d2a86329152c69a6200c15b2bf618755f8563826",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e38587d98d1ceac608420052c0cdd901d25878f3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}