{"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": "2026-03-18T10:05:02.997Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-03-18T10:05:02.997Z"}, "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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "14c3188afbedfd5178bbabb8002487ea14b37b56", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "435d34719db0e130f6f0c621d67ed524cc1a7d10", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "68e32694be231c1cdb99b7637a657314e88e1a96", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "398e768d1accd1f5645492ab996005d7aa84a5b0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "b0ea441f44ce64fa514a415d4a9e6e2b06e7946c", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "0ad7a1be44479503dbe5c699759861ef5b8bd70c", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "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": "5.15.202", "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-rc1", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0-rc1"}]}]}], "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2025-71266", "lastModified": "2026-03-18T11:16:15.560", "metrics": {}, "published": "2026-03-18T11:16:15.560", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ad7a1be44479503dbe5c699759861ef5b8bd70c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/14c3188afbedfd5178bbabb8002487ea14b37b56"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1732053c8a6b360e2d5afb1b34fe9779398b072c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/398e768d1accd1f5645492ab996005d7aa84a5b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/435d34719db0e130f6f0c621d67ed524cc1a7d10"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68e32694be231c1cdb99b7637a657314e88e1a96"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b0ea441f44ce64fa514a415d4a9e6e2b06e7946c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,14c3188afbedfd5178bbabb8002487ea14b37b56)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,435d34719db0e130f6f0c621d67ed524cc1a7d10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,68e32694be231c1cdb99b7637a657314e88e1a96)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,398e768d1accd1f5645492ab996005d7aa84a5b0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,b0ea441f44ce64fa514a415d4a9e6e2b06e7946c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,0ad7a1be44479503dbe5c699759861ef5b8bd70c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1732053c8a6b360e2d5afb1b34fe9779398b072c)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.202,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.16,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-03-18T12:12:47.842127+00:00", "updated": "2026-03-18T12:12:47.842273+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}