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vuln-cve/data/2025/71xxx/CVE-2025-71266.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-71266",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-03-17T09:08:18.457Z",
"datePublished": "2026-03-18T10:05:02.997Z",
"dateUpdated": "2026-11-10T12:39:42.267Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:57:04.405Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: ntfs3: check return value of indx_find to avoid infinite loop\n\nWe found an infinite loop bug in the ntfs3 file system that can lead to a\nDenial-of-Service (DoS) condition.\n\nA malformed dentry in the ntfs3 filesystem can cause the kernel to hang\nduring the lookup operations. By setting the HAS_SUB_NODE flag in an\nINDEX_ENTRY within a directory's INDEX_ALLOCATION block and manipulating the\nVCN pointer, an attacker can cause the indx_find() function to repeatedly\nread the same block, allocating 4 KB of memory each time. The kernel lacks\nVCN loop detection and depth limits, causing memory exhaustion and an OOM\ncrash.\n\nThis patch adds a return value check for fnd_push() to prevent a memory\nexhaustion vulnerability caused by infinite loops. When the index exceeds the\nsize of the fnd->nodes array, fnd_push() returns -EINVAL. The indx_find()\nfunction checks this return value and stops processing, preventing further\nmemory allocation."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/ntfs3/index.c"
],
"versions": [
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "14c3188afbedfd5178bbabb8002487ea14b37b56",
"status": "affected",
"versionType": "git"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "435d34719db0e130f6f0c621d67ed524cc1a7d10",
"status": "affected",
"versionType": "git"
},
{
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"lessThan": "68e32694be231c1cdb99b7637a657314e88e1a96",
"status": "affected",
"versionType": "git"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "398e768d1accd1f5645492ab996005d7aa84a5b0",
"status": "affected",
"versionType": "git"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "b0ea441f44ce64fa514a415d4a9e6e2b06e7946c",
"status": "affected",
"versionType": "git"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "0ad7a1be44479503dbe5c699759861ef5b8bd70c",
"status": "affected",
"versionType": "git"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "1732053c8a6b360e2d5afb1b34fe9779398b072c",
"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/ntfs3/index.c"
],
"versions": [
{
"version": "5.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.15",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.202",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.165",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.128",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.75",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.16",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.19.6",
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0",
"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": "5.15",
"versionEndExcluding": "5.15.202"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.1.165"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.6.128"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.12.75"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.18.16"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "6.19.6"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15",
"versionEndExcluding": "7.0"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/14c3188afbedfd5178bbabb8002487ea14b37b56"
},
{
"url": "https://git.kernel.org/stable/c/435d34719db0e130f6f0c621d67ed524cc1a7d10"
},
{
"url": "https://git.kernel.org/stable/c/68e32694be231c1cdb99b7637a657314e88e1a96"
},
{
"url": "https://git.kernel.org/stable/c/398e768d1accd1f5645492ab996005d7aa84a5b0"
},
{
"url": "https://git.kernel.org/stable/c/b0ea441f44ce64fa514a415d4a9e6e2b06e7946c"
},
{
"url": "https://git.kernel.org/stable/c/0ad7a1be44479503dbe5c699759861ef5b8bd70c"
},
{
"url": "https://git.kernel.org/stable/c/1732053c8a6b360e2d5afb1b34fe9779398b072c"
}
],
"title": "fs: ntfs3: check return value of indx_find to avoid infinite loop",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
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"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:39:42.267Z"
},
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"vendor": "Siemens",
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"lessThan": "*",
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"defaultStatus": "unknown"
},
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}
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