CVE-2025-38072
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: libnvdimm/labels: Fix divide error in nd_label_data_init() If a faulty CXL memory device returns a broken zero LSA size in its memory device information (Identify Memory Device (Opcode 4000h), CXL spec. 3.1, 8.2.9.9.1.1), a divide error occurs in the libnvdimm driver: Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:nd_label_data_init+0x10e/0x800 [libnvdimm] Code and flow: 1) CXL Command 4000h returns LSA size = 0 2) config_size is assigned to zero LSA size (CXL pmem driver): drivers/cxl/pmem.c: .config_size = mds->lsa_size, 3) max_xfer is set to zero (nvdimm driver): drivers/nvdimm/label.c: max_xfer = min_t(size_t, ndd->nsarea.max_xfer, config_size); 4) A subsequent DIV_ROUND_UP() causes a division by zero: drivers/nvdimm/label.c: /* Make our initial read size a multiple of max_xfer size */ drivers/nvdimm/label.c: read_size = min(DIV_ROUND_UP(read_size, max_xfer) * max_xfer, drivers/nvdimm/label.c- config_size); Fix this by checking the config size parameter by extending an existing check.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-06-18 10:15:40.583000
Last modified
2026-11-05 21:18:09.030000
View original CVE JSON
{
"id": "CVE-2025-38072",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-06-18T10:15:40.583",
"lastModified": "2026-11-05T21:18:09.030",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibnvdimm/labels: Fix divide error in nd_label_data_init()\n\nIf a faulty CXL memory device returns a broken zero LSA size in its\nmemory device information (Identify Memory Device (Opcode 4000h), CXL\nspec. 3.1, 8.2.9.9.1.1), a divide error occurs in the libnvdimm\ndriver:\n\n Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI\n RIP: 0010:nd_label_data_init+0x10e/0x800 [libnvdimm]\n\nCode and flow:\n\n1) CXL Command 4000h returns LSA size = 0\n2) config_size is assigned to zero LSA size (CXL pmem driver):\n\ndrivers/cxl/pmem.c: .config_size = mds->lsa_size,\n\n3) max_xfer is set to zero (nvdimm driver):\n\ndrivers/nvdimm/label.c: max_xfer = min_t(size_t, ndd->nsarea.max_xfer, config_size);\n\n4) A subsequent DIV_ROUND_UP() causes a division by zero:\n\ndrivers/nvdimm/label.c: /* Make our initial read size a multiple of max_xfer size */\ndrivers/nvdimm/label.c: read_size = min(DIV_ROUND_UP(read_size, max_xfer) * max_xfer,\ndrivers/nvdimm/label.c- config_size);\n\nFix this by checking the config size parameter by extending an\nexisting check."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: libnvdimm/labels: Corregir error de división en nd_label_data_init() Si un dispositivo de memoria CXL defectuoso devuelve un tamaño LSA cero roto en su información de dispositivo de memoria (Identificar dispositivo de memoria (Opcode 4000h), especificación CXL 3.1, 8.2.9.9.1.1), se produce un error de división en el controlador libnvdimm: Oops: error de división: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:nd_label_data_init+0x10e/0x800 [libnvdimm] Código y flujo: 1) El comando CXL 4000h devuelve tamaño LSA = 0 2) config_size se asigna a tamaño LSA cero (controlador pmem CXL): drivers/cxl/pmem.c: .config_size = mds->lsa_size, 3) max_xfer se establece en cero (controlador nvdimm): drivers/nvdimm/label.c: max_xfer = min_t(size_t, ndd->nsarea.max_xfer, config_size); 4) Un DIV_ROUND_UP() posterior provoca una división por cero: drivers/nvdimm/label.c: /* Hacer que nuestro tamaño de lectura inicial sea un múltiplo del tamaño max_xfer */ drivers/nvdimm/label.c: read_size = min(DIV_ROUND_UP(read_size, max_xfer) * max_xfer, drivers/nvdimm/label.c- config_size); Solucione esto comprobando el parámetro de tamaño de configuración extendiendo una comprobación existente."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/nvdimm/label.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "2bd4a938d2eda96ab7288b8fa5aae84a1de8c4ca",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "396c46d3f59a18ebcc500640e749f16e197d472b",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "f49c337037df029440a8390380dd35d2cf5924d3",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "db1aef51b8e66a77f76b1250b914589c31a0a0ed",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "ea3d95e05e97ea20fd6513f647393add16fce3b2",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "1d1e1efad1cf049e888bf175a5c6be85d792620c",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "e14347f647ca6d76fe1509b6703e340f2d5e2716",
"versionType": "git",
"status": "affected"
},
{
"version": "7d47aad4570e5e6e9a8162bb417ca9b74132f27c",
"lessThan": "ef1d3455bbc1922f94a91ed58d3d7db440652959",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/nvdimm/label.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "4.20",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.20",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.4.294",
"lessThanOrEqual": "5.4.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.238",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.185",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.141",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.93",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.31",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.14.9",
"lessThanOrEqual": "6.14.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.15",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-05T20:49:14.375753Z",
"id": "CVE-2025-38072",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-908"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.294",
"matchCriteriaId": "093AFCC1-07FE-4A32-A1F0-9B1F9197071E"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "5.10.238",
"matchCriteriaId": "0DAAEF7F-D560-47FC-8B65-20404DB82432"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.11",
"versionEndExcluding": "5.15.185",
"matchCriteriaId": "E11820B2-24BD-40A8-9E6B-5BC447252321"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.16",
"versionEndExcluding": "6.1.141",
"matchCriteriaId": "7CEA8241-A858-4009-B4EE-31C62772811A"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.2",
"versionEndExcluding": "6.6.93",
"matchCriteriaId": "50A4A9DE-24AB-4FB4-AACD-85D8EABB0571"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.7",
"versionEndExcluding": "6.12.31",
"matchCriteriaId": "1AE98841-5774-4B45-A81C-2D188DB7E5C3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
"versionEndExcluding": "6.14.9",
"matchCriteriaId": "A9B72DD1-715C-4101-A720-1C8D70044C06"
}
]
}
]
},
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/1d1e1efad1cf049e888bf175a5c6be85d792620c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/2bd4a938d2eda96ab7288b8fa5aae84a1de8c4ca",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/396c46d3f59a18ebcc500640e749f16e197d472b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/db1aef51b8e66a77f76b1250b914589c31a0a0ed",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/e14347f647ca6d76fe1509b6703e340f2d5e2716",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/ea3d95e05e97ea20fd6513f647393add16fce3b2",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/ef1d3455bbc1922f94a91ed58d3d7db440652959",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/f49c337037df029440a8390380dd35d2cf5924d3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
]
}
]
}