CVE-2026-98760
En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:
usb: typec: tipd: corrige la variable typec_partner_desc sin inicializar en tps6598x_connect()
tps6598x_connect() pasa un typec_partner_desc asignado en la pila a typec_register_partner() tras inicializar solo usb_pd, accessory e identity.
typec_register_partner() copia attach y deattach desde el descriptor al partner. Si esos campos quedan sin asignar, es posible que se almacenen punteros a función basura que después se invoquen desde typec_partner_link_device() cuando un dispositivo USB se vincula al puerto. Del mismo modo, pd_revision y usb_capability sin inicializar filtran datos de la pila a través de sysfs del partner.
Leer descripción completaMostrar menos
Inicializa a cero el descriptor para que los callbacks opcionales permanezcan en NULL y el resto de campos queden a cero.
Traducción automática del texto original de NVD (en inglés).
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.17 %
- Percentil entre todas las CVEs puntuadas
- 6
- Fecha de la puntuación
- 20/10/2026
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 (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
Mostrar las 4 referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98760",
"cveTags": [],
"metrics": {},
"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": "0a4c005bd1715d8b32a368ed5516a6ee7e603d18",
"lessThan": "4b6823ce0e548491cb9663303cba28e18d351096",
"versionType": "git"
},
{
"status": "affected",
"version": "0a4c005bd1715d8b32a368ed5516a6ee7e603d18",
"lessThan": "282be6ae8be791762740107c79cecf5121f66063",
"versionType": "git"
},
{
"status": "affected",
"version": "0a4c005bd1715d8b32a368ed5516a6ee7e603d18",
"lessThan": "dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14",
"versionType": "git"
},
{
"status": "affected",
"version": "0a4c005bd1715d8b32a368ed5516a6ee7e603d18",
"lessThan": "c4b27b3605788bbf9e4251f3cd4ab94645ab036f",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/typec/tipd/core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/typec/tipd/core.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-18T16:17:29.800",
"references": [
{
"url": "https://git.kernel.org/stable/c/282be6ae8be791762740107c79cecf5121f66063",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4b6823ce0e548491cb9663303cba28e18d351096",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c4b27b3605788bbf9e4251f3cd4ab94645ab036f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tipd: fix uninitialized typec_partner_desc in tps6598x_connect()\n\ntps6598x_connect() passes a stack-allocated typec_partner_desc to\ntypec_register_partner() after initializing only usb_pd, accessory and\nidentity.\n\ntypec_register_partner() copies attach and deattach from the descriptor\ninto the partner. With those fields left unset, garbage function pointers\nmay be stored and later invoked from typec_partner_link_device() when a USB\ndevice is linked to the port. Uninitialized pd_revision and usb_capability\nsimilarly leak stack data through partner sysfs.\n\nZero-initialize the descriptor so optional callbacks remain NULL and the\nremaining fields are zero."
}
],
"lastModified": "2026-10-19T10:19:40.117",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}