CVE-2025-71309

{"id": "CVE-2025-71309", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f35590ee26f5722bfe12cdff14396c4c057a8f74", "lessThan": "cfe246b318106e1691bd6c9466c739e8559d25c2", "versionType": "git"}, {"status": "affected", "version": "f35590ee26f5722bfe12cdff14396c4c057a8f74", "lessThan": "e37a75bb866c29da954b51d0dd7670406246d9ee", "versionType": "git"}], "programFiles": ["fs/ntfs3/frecord.c", "fs/ntfs3/inode.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"status": "unaffected", "version": "0", "lessThan": "6.19", "versionType": "semver"}, {"status": "unaffected", "version": "6.19.4", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/ntfs3/frecord.c", "fs/ntfs3/inode.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:16:43.517", "references": [{"url": "https://git.kernel.org/stable/c/cfe246b318106e1691bd6c9466c739e8559d25c2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e37a75bb866c29da954b51d0dd7670406246d9ee", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: fix deadlock in ni_read_folio_cmpr\n\nSyzbot reported a task hung in ni_readpage_cmpr (now ni_read_folio_cmpr).\nThis is caused by a lock inversion deadlock involving the inode mutex\n(ni_lock) and page locks.\n\nScenario:\n1. Task A enters ntfs_read_folio() for page X. It acquires ni_lock.\n2. Task A calls ni_read_folio_cmpr(), which attempts to lock all pages in\n the compressed frame (including page Y).\n3. Concurrently, Task B (e.g., via readahead) has locked page Y and\n calls ntfs_read_folio().\n4. Task B waits for ni_lock (held by A).\n5. Task A waits for page Y lock (held by B).\n -> DEADLOCK.\n\nThe fix is to restructure locking: do not take ni_lock in ntfs_read_folio().\nInstead, acquire ni_lock inside ni_read_folio_cmpr() ONLY AFTER all required\npage locks for the frame have been successfully acquired. This restores the\ncorrect lock ordering (Page Lock -> ni_lock) consistent with VFS.\n\n[almaz.alexandrovich@paragon-software.com: ni_readpage_cmpr was renamed to ni_read_folio_cmpr]"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs/ntfs3: corrige interbloqueo en ni_read_folio_cmpr\n\nSyzbot inform\u00f3 una tarea colgada en ni_readpage_cmpr (ahora ni_read_folio_cmpr).\nEsto es causado por un interbloqueo de inversi\u00f3n de bloqueo que involucra el mutex del inodo (ni_lock) y los bloqueos de p\u00e1gina.\n\nEscenario:\n1. La Tarea A entra en ntfs_read_folio() para la p\u00e1gina X. Adquiere ni_lock.\n2. La Tarea A llama a ni_read_folio_cmpr(), que intenta bloquear todas las p\u00e1ginas en el marco comprimido (incluida la p\u00e1gina Y).\n3. Concurrently, la Tarea B (p. ej., a trav\u00e9s de readahead) ha bloqueado la p\u00e1gina Y y llama a ntfs_read_folio().\n4. La Tarea B espera por ni_lock (retenido por A).\n5. La Tarea A espera por el bloqueo de la p\u00e1gina Y (retenido por B).\n -> INTERBLOQUEO.\n\nLa soluci\u00f3n es reestructurar el bloqueo: no tomar ni_lock en ntfs_read_folio().\nEn su lugar, adquirir ni_lock dentro de ni_read_folio_cmpr() S\u00d3LO DESPU\u00c9S de que todos los bloqueos de p\u00e1gina requeridos para el marco hayan sido adquiridos exitosamente. Esto restaura el orden de bloqueo correcto (Bloqueo de P\u00e1gina -> ni_lock) consistente con VFS.\n\n[almaz.alexandrovich@paragon-software.com: ni_readpage_cmpr fue renombrado a ni_read_folio_cmpr]"}], "lastModified": "2026-10-14T13:10:00.187", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}