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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "02F81A84-21DA-4436-B359-66E296BC4575", "versionEndExcluding": "6.1.146", "versionStartIncluding": "6.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B369699C-E0E6-42A4-BDEE-8E676ECEF6AA", "versionEndExcluding": "6.6.99", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2BD88DEC-018F-4F40-8E29-A2CA89813EBA", "versionEndExcluding": "6.12.36", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0CC768E2-3BBC-4A6E-9C2F-ECB27A703C2D", "versionEndExcluding": "6.15.5", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*", "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*", "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*", "matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmaple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate()\n\nTemporarily clear the preallocation flag when explicitly requesting\nallocations. Pre-existing allocations are already counted against the\nrequest through mas_node_count_gfp(), but the allocations will not happen\nif the MA_STATE_PREALLOC flag is set. This flag is meant to avoid\nre-allocating in bulk allocation mode, and to detect issues with\npreallocation calculations.\n\nThe MA_STATE_PREALLOC flag should also always be set on zero allocations\nso that detection of underflow allocations will print a WARN_ON() during\nconsumption.\n\nUser visible effect of this flaw is a WARN_ON() followed by a null pointer\ndereference when subsequent requests for larger number of nodes is\nignored, such as the vma merge retry in mmap_region() caused by drivers\naltering the vma flags (which happens in v6.6, at least)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: maple_tree: correcci\u00f3n del indicador MA_STATE_PREALLOC en mas_preallocate(). Borra temporalmente el indicador de preasignaci\u00f3n al solicitar asignaciones expl\u00edcitamente. Las asignaciones preexistentes ya se contabilizan en la solicitud mediante mas_node_count_gfp(), pero las asignaciones no se realizar\u00e1n si el indicador MA_STATE_PREALLOC est\u00e1 activado. Este indicador evita la reasignaci\u00f3n en modo de asignaci\u00f3n masiva y detecta problemas con los c\u00e1lculos de preasignaci\u00f3n. El indicador MA_STATE_PREALLOC debe estar siempre activado en asignaciones cero para que la detecci\u00f3n de asignaciones por desbordamiento imprima un WARN_ON() durante el consumo. El efecto visible para el usuario de esta falla es un WARN_ON() seguido de una desreferencia de puntero nulo cuando se ignoran solicitudes posteriores de un mayor n\u00famero de nodos, como el reintento de fusi\u00f3n de vma en mmap_region() causado por controladores que alteran los indicadores de vma (al menos en la versi\u00f3n 6.6)."}], "id": "CVE-2025-38364", "lastModified": "2025-12-16T14:08:59.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-07-25T13:15:25.260", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9e32f4700867abbd5d19abfcf698dbd0d2ce36a4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cf95f8426f889949b738f51ffcd72884411f3a6a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d69cd64bd5af41c6fd409313504089970edaf02f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e63032e66bca1d06e600033f3369ba3db3af0870"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fba46a5d83ca8decb338722fb4899026d8d9ead2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: maple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate()", "id": "2383390", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383390"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmaple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate()\nTemporarily clear the preallocation flag when explicitly requesting\nallocations. Pre-existing allocations are already counted against the\nrequest through mas_node_count_gfp(), but the allocations will not happen\nif the MA_STATE_PREALLOC flag is set. This flag is meant to avoid\nre-allocating in bulk allocation mode, and to detect issues with\npreallocation calculations.\nThe MA_STATE_PREALLOC flag should also always be set on zero allocations\nso that detection of underflow allocations will print a WARN_ON() during\nconsumption.\nUser visible effect of this flaw is a WARN_ON() followed by a null pointer\ndereference when subsequent requests for larger number of nodes is\nignored, such as the vma merge retry in mmap_region() caused by drivers\naltering the vma flags (which happens in v6.6, at least)"], "name": "CVE-2025-38364", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38364\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38364\nhttps://lore.kernel.org/linux-cve-announce/2025072558-CVE-2025-38364-74db@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-26T11:22:05.626272+00:00", "updated": "2025-07-26T11:22:05.626340+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}