CVE-2026-98620
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:
net: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure
Si register_netdev() falla para uno de los dispositivos MTK_MAX_DEVS en mtk_probe(), la ruta de error salta a err_deinit_ppe, omitiendo mtk_unreg_dev(). Los net_devices registrados previamente son entonces liberados por mtk_free_dev() mientras siguen en el estado NETREG_REGISTERED, lo que provoca el BUG_ON(dev->reg_state != NETREG_UNREGISTERED).
Encamina el fallo de register_netdev() hacia err_unreg_netdev para que los net_devices registrados hasta el momento se desregistren correctamente antes de ser liberados.
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
- 0.20 %
- Percentil entre todas las CVEs puntuadas
- 9
- 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 5 referencias
- https://git.kernel.org/stable/c/0fdb944d4df02223c67d5e65c4c134ecb57a5668
- https://git.kernel.org/stable/c/245bea0c7ab278150c70366bdeb69b901327133c
- https://git.kernel.org/stable/c/310d1ac61a4d5a2ca8356a3a48d263acf54503ce
- https://git.kernel.org/stable/c/7254b702e556158e34b4d7c168b5d8e7da5978af
- https://git.kernel.org/stable/c/ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98620",
"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": "8a8a9e89f801ce5d3d1d57ac48db678caf072147",
"lessThan": "245bea0c7ab278150c70366bdeb69b901327133c",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8a9e89f801ce5d3d1d57ac48db678caf072147",
"lessThan": "ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8a9e89f801ce5d3d1d57ac48db678caf072147",
"lessThan": "7254b702e556158e34b4d7c168b5d8e7da5978af",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8a9e89f801ce5d3d1d57ac48db678caf072147",
"lessThan": "0fdb944d4df02223c67d5e65c4c134ecb57a5668",
"versionType": "git"
},
{
"status": "affected",
"version": "8a8a9e89f801ce5d3d1d57ac48db678caf072147",
"lessThan": "310d1ac61a4d5a2ca8356a3a48d263acf54503ce",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/mediatek/mtk_eth_soc.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": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/mediatek/mtk_eth_soc.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-18T16:17:14.890",
"references": [
{
"url": "https://git.kernel.org/stable/c/0fdb944d4df02223c67d5e65c4c134ecb57a5668",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/245bea0c7ab278150c70366bdeb69b901327133c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/310d1ac61a4d5a2ca8356a3a48d263acf54503ce",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7254b702e556158e34b4d7c168b5d8e7da5978af",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ab3bde3b3e56331b4f53a1f6cf4e5e9d1c14c1a0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: unregister net_devices in case of probe failure\n\nIf register_netdev() fails for one of the MTK_MAX_DEVS devices in\nmtk_probe(), the error path jumps to err_deinit_ppe, skipping\nmtk_unreg_dev(). The previously registered net_devices are then freed by\nmtk_free_dev() while still in NETREG_REGISTERED state, hitting the\nBUG_ON(dev->reg_state != NETREG_UNREGISTERED).\n\nRoute the register_netdev() failure to err_unreg_netdev so the net_devices\nregistered so far are properly unregistered before being freed."
}
],
"lastModified": "2026-10-19T10:19:26.120",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}