CVE-2025-38514
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix oops due to non-existence of prealloc backlog struct
If an AF_RXRPC service socket is opened and bound, but calls are preallocated, then rxrpc_alloc_incoming_call() will oops because the rxrpc_backlog struct doesn't get allocated until the first preallocation is made.
Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no backlog struct. This will cause the incoming call to be aborted.
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: 0.36%
- Percentil entre todas las CVEs puntuadas: 27
- 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
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/0eef29385d715d4c7fd707b18d4a9b76c76dd5e6
- https://git.kernel.org/stable/c/2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3
- https://git.kernel.org/stable/c/880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4
- https://git.kernel.org/stable/c/bf0ca6a1bc4fb904b598137c6718785a107e3adf
- https://git.kernel.org/stable/c/d1ff5f9d2c5405681457262e23c720b08977c11f
- https://git.kernel.org/stable/c/efc1b2b7c1a308b60df8f36bc2d7ce16d3999364
- https://git.kernel.org/stable/c/f5e72b7824d08c206ce106d30cb37c4642900ccc
- https://git.kernel.org/stable/c/f7afb3ff01c42c49e8a143cdce400b95844bb506
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-38514",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
},
{
"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": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "bf0ca6a1bc4fb904b598137c6718785a107e3adf",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "f7afb3ff01c42c49e8a143cdce400b95844bb506",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "f5e72b7824d08c206ce106d30cb37c4642900ccc",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "0eef29385d715d4c7fd707b18d4a9b76c76dd5e6",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "efc1b2b7c1a308b60df8f36bc2d7ce16d3999364",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "d1ff5f9d2c5405681457262e23c720b08977c11f",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3",
"versionType": "git"
},
{
"status": "affected",
"version": "248f219cb8bcbfbd7f132752d44afa2df7c241d1",
"lessThan": "880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4",
"versionType": "git"
}
],
"programFiles": [
"net/rxrpc/call_accept.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.296",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.240",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.189",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.146",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.99",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.39",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.7",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/rxrpc/call_accept.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-08-16T11:15:44.510",
"references": [
{
"url": "https://git.kernel.org/stable/c/0eef29385d715d4c7fd707b18d4a9b76c76dd5e6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/bf0ca6a1bc4fb904b598137c6718785a107e3adf",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d1ff5f9d2c5405681457262e23c720b08977c11f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/efc1b2b7c1a308b60df8f36bc2d7ce16d3999364",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f5e72b7824d08c206ce106d30cb37c4642900ccc",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f7afb3ff01c42c49e8a143cdce400b95844bb506",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix oops due to non-existence of prealloc backlog struct\n\nIf an AF_RXRPC service socket is opened and bound, but calls are\npreallocated, then rxrpc_alloc_incoming_call() will oops because the\nrxrpc_backlog struct doesn't get allocated until the first preallocation is\nmade.\n\nFix this by returning NULL from rxrpc_alloc_incoming_call() if there is no\nbacklog struct. This will cause the incoming call to be aborted."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rxrpc: Se corrige un error debido a la inexistencia de la estructura de registro de preasignación. Si se abre y enlaza un socket de servicio AF_RXRPC, pero las llamadas están preasignadas, rxrpc_alloc_incoming_call() generará un error porque la estructura rxrpc_backlog no se asigna hasta que se realiza la primera preasignación. Se soluciona este problema devolviendo NULL desde rxrpc_alloc_incoming_call() si no existe la estructura de registro de preasignación. Esto provocará la interrupción de la llamada entrante."
}
],
"lastModified": "2026-07-30T06:23:23.557",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "978443CD-00A7-403F-B4BF-211250E85717",
"versionEndExcluding": "5.4.296",
"versionStartIncluding": "4.9"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0E73A49A-F9B2-470F-91B2-6FAB6239BDB6",
"versionEndExcluding": "5.10.240",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3CE0FB9A-DBE8-48B6-BF6E-3C724A4991E3",
"versionEndExcluding": "5.15.189",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D8DA1166-5C95-475E-BF65-1DF621968E96",
"versionEndExcluding": "6.1.146",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B369699C-E0E6-42A4-BDEE-8E676ECEF6AA",
"versionEndExcluding": "6.6.99",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "18D57670-11F8-4B5A-AD56-EA32DD0F44E1",
"versionEndExcluding": "6.12.39",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F9C46937-5FA9-4335-AD7B-E7FC29453CE1",
"versionEndExcluding": "6.15.7",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "85421F4E-C863-4ABF-B4B4-E887CC2F7F92"
}
],
"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"
}