CVE-2025-38300
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
crypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare()
Fix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare():
To fix this, check for !dma_mapping_error() before calling dma_unmap_single() on the "theend_iv" path.
Detalles técnicos trazas, registros y código del informe original
1] If dma_map_sg() fails for areq->dst, the device driver would try to free
DMA memory it has not allocated in the first place. To fix this, on the
"theend_sgs" error path, call dma unmap only if the corresponding dma
map was successful.
2] If the dma_map_single() call for the IV fails, the device driver would
try to free an invalid DMA memory address on the "theend_iv" path:
------------[ cut here ]------------
DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address
WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90
Modules linked in: skcipher_example(O+)
CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G O 6.15.0-rc3+ #24 PREEMPT
Tainted: [O]=OOT_MODULE
Hardware name: OrangePi Zero2 (DT)
pc : check_unmap+0x123c/0x1b90
lr : check_unmap+0x123c/0x1b90
...
Call trace:
check_unmap+0x123c/0x1b90 (P)
debug_dma_unmap_page+0xac/0xc0
dma_unmap_page_attrs+0x1f4/0x5fc
sun8i_ce_cipher_do_one+0x1bd4/0x1f40
crypto_pump_work+0x334/0x6e0
kthread_worker_fn+0x21c/0x438
kthread+0x374/0x664
ret_from_fork+0x10/0x20
---[ end trace 0000000000000000 ]---CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 5
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-401
Referencias
- https://git.kernel.org/stable/c/19d267d9fad00d94ad8477899e38ed7c11f33fb6
- https://git.kernel.org/stable/c/4051250e5db489f8ad65fc337e2677b9b568ac72
- https://git.kernel.org/stable/c/a0ac3f85b2e3ef529e852f252a70311f9029d5e6
- https://git.kernel.org/stable/c/c62b79c1c51303dbcb6edfa4de0ee176f4934c52
- https://git.kernel.org/stable/c/f31adc3e356f7350d4a4d68c98d3f60f2f6e26b3
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-38300",
"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": "06f751b613296cc34b86fc83fccaf30d646eb8bc",
"lessThan": "a0ac3f85b2e3ef529e852f252a70311f9029d5e6",
"versionType": "git"
},
{
"status": "affected",
"version": "06f751b613296cc34b86fc83fccaf30d646eb8bc",
"lessThan": "c62b79c1c51303dbcb6edfa4de0ee176f4934c52",
"versionType": "git"
},
{
"status": "affected",
"version": "06f751b613296cc34b86fc83fccaf30d646eb8bc",
"lessThan": "19d267d9fad00d94ad8477899e38ed7c11f33fb6",
"versionType": "git"
},
{
"status": "affected",
"version": "06f751b613296cc34b86fc83fccaf30d646eb8bc",
"lessThan": "4051250e5db489f8ad65fc337e2677b9b568ac72",
"versionType": "git"
},
{
"status": "affected",
"version": "06f751b613296cc34b86fc83fccaf30d646eb8bc",
"lessThan": "f31adc3e356f7350d4a4d68c98d3f60f2f6e26b3",
"versionType": "git"
}
],
"programFiles": [
"drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.142",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.94",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.34",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.3",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-07-10T08:15:28.740",
"references": [
{
"url": "https://git.kernel.org/stable/c/19d267d9fad00d94ad8477899e38ed7c11f33fb6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4051250e5db489f8ad65fc337e2677b9b568ac72",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a0ac3f85b2e3ef529e852f252a70311f9029d5e6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c62b79c1c51303dbcb6edfa4de0ee176f4934c52",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f31adc3e356f7350d4a4d68c98d3f60f2f6e26b3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare()\n\nFix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare():\n\n1] If dma_map_sg() fails for areq->dst, the device driver would try to free\n DMA memory it has not allocated in the first place. To fix this, on the\n \"theend_sgs\" error path, call dma unmap only if the corresponding dma\n map was successful.\n\n2] If the dma_map_single() call for the IV fails, the device driver would\n try to free an invalid DMA memory address on the \"theend_iv\" path:\n ------------[ cut here ]------------\n DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address\n WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90\n Modules linked in: skcipher_example(O+)\n CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G O 6.15.0-rc3+ #24 PREEMPT\n Tainted: [O]=OOT_MODULE\n Hardware name: OrangePi Zero2 (DT)\n pc : check_unmap+0x123c/0x1b90\n lr : check_unmap+0x123c/0x1b90\n ...\n Call trace:\n check_unmap+0x123c/0x1b90 (P)\n debug_dma_unmap_page+0xac/0xc0\n dma_unmap_page_attrs+0x1f4/0x5fc\n sun8i_ce_cipher_do_one+0x1bd4/0x1f40\n crypto_pump_work+0x334/0x6e0\n kthread_worker_fn+0x21c/0x438\n kthread+0x374/0x664\n ret_from_fork+0x10/0x20\n ---[ end trace 0000000000000000 ]---\n\nTo fix this, check for !dma_mapping_error() before calling\ndma_unmap_single() on the \"theend_iv\" path."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: sun8i-ce-cipher - corrección del manejo de errores en sun8i_ce_cipher_prepare(). Se corrigen dos problemas de limpieza de DMA en la ruta de error en sun8i_ce_cipher_prepare(): 1] Si dma_map_sg() falla para areq->dst, el controlador del dispositivo intentaría liberar memoria DMA que no había asignado inicialmente. Para corregir esto, en la ruta de error \"theend_sgs\", ejecute dma unmap solo si la asignación de DMA correspondiente se realizó correctamente. 2] Si falla la llamada a dma_map_single() para el IV, el controlador del dispositivo intentará liberar una dirección de memoria DMA no válida en la ruta \"theend_iv\": ------------[ cortar aquí ]------------ DMA-API: sun8i-ce 1904000.crypto: el controlador del dispositivo intenta liberar una dirección de memoria DMA no válida ADVERTENCIA: CPU: 2 PID: 69 en kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90 Módulos vinculados: skcipher_example(O+) CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: GO 6.15.0-rc3+ #24 PREEMPT Tainted: [O]=OOT_MODULE Nombre del hardware: OrangePi Zero2 (DT) pc : check_unmap+0x123c/0x1b90 lr : check_unmap+0x123c/0x1b90 ... Rastreo de llamada: check_unmap+0x123c/0x1b90 (P) debug_dma_unmap_page+0xac/0xc0 dma_unmap_page_attrs+0x1f4/0x5fc sun8i_ce_cipher_do_one+0x1bd4/0x1f40 crypto_pump_work+0x334/0x6e0 kthread_worker_fn+0x21c/0x438 kthread+0x374/0x664 ret_from_fork+0x10/0x20 ---[ fin del rastreo 000000000000000 ]--- Para solucionar esto, verifique !dma_mapping_error() antes de llamar dma_unmap_single() en la ruta \"theend_iv\"."
}
],
"lastModified": "2026-06-17T09:16:34.707",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9E4F9900-0D3F-44E5-BA60-F0E6952310EF",
"versionEndExcluding": "6.1.142",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "304E3F01-7D7A-4908-994E-7F95C5C00B06",
"versionEndExcluding": "6.6.94",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4FFA54AA-CDFE-4591-BD07-72813D0948F4",
"versionEndExcluding": "6.12.34",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0541C761-BD5E-4C1A-8432-83B375D7EB92",
"versionEndExcluding": "6.15.3",
"versionStartIncluding": "6.13"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}