CVE-2025-38187
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix a use-after-free in r535_gsp_rpc_push() The RPC container is released after being passed to r535_gsp_rpc_send(). When sending the initial fragment of a large RPC and passing the caller's RPC container, the container will be freed prematurely. Subsequent attempts to send remaining fragments will therefore result in a use-after-free. Allocate a temporary RPC container for holding the initial fragment of a large RPC when sending. Free the caller's container when all fragments are successfully sent. [ Rebase onto Blackwell changes. - Danilo ]
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-07-04 14:15:25.640000
Last modified
2026-10-21 13:18:09.247000
View original CVE JSON
{
"id": "CVE-2025-38187",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-07-04T14:15:25.640",
"lastModified": "2026-10-21T13:18:09.247",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: fix a use-after-free in r535_gsp_rpc_push()\n\nThe RPC container is released after being passed to r535_gsp_rpc_send().\n\nWhen sending the initial fragment of a large RPC and passing the\ncaller's RPC container, the container will be freed prematurely. Subsequent\nattempts to send remaining fragments will therefore result in a\nuse-after-free.\n\nAllocate a temporary RPC container for holding the initial fragment of a\nlarge RPC when sending. Free the caller's container when all fragments\nare successfully sent.\n\n[ Rebase onto Blackwell changes. - Danilo ]"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/nouveau: se corrige un error de use-after-free en r535_gsp_rpc_push(). El contenedor RPC se libera tras pasarse a r535_gsp_rpc_send(). Al enviar el fragmento inicial de una RPC grande y pasar el contenedor RPC del emisor, este se liberará prematuramente. Por lo tanto, los intentos posteriores de enviar los fragmentos restantes resultarán en un error de use-after-free. Asigne un contenedor RPC temporal para almacenar el fragmento inicial de una RPC grande durante el envío. Libere el contenedor del emisor cuando todos los fragmentos se hayan enviado correctamente. [Rebase sobre los cambios de Blackwell. - Danilo]"
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "176fdcbddfd288408ce8571c1760ad618d962096",
"lessThan": "69270d24af7694494ac4116bcad30a812ca49ca7",
"versionType": "git",
"status": "affected"
},
{
"version": "176fdcbddfd288408ce8571c1760ad618d962096",
"lessThan": "cd4677407c0ee250fc21e36439c8a442ddd62cc1",
"versionType": "git",
"status": "affected"
},
{
"version": "176fdcbddfd288408ce8571c1760ad618d962096",
"lessThan": "9802f0a63b641f4cddb2139c814c2e95cb825099",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.7",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.114",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.15.4",
"lessThanOrEqual": "6.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.16",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.7",
"versionEndExcluding": "6.15.4",
"matchCriteriaId": "9070DE87-9D2B-479F-AD76-596EB6C842D8"
},
{
"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"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/69270d24af7694494ac4116bcad30a812ca49ca7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9802f0a63b641f4cddb2139c814c2e95cb825099",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/cd4677407c0ee250fc21e36439c8a442ddd62cc1",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}