CVE-2025-40263
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
Input: cros_ec_keyb - fix an invalid memory access
If cros_ec_keyb_register_matrix() isn't called (due to `buttons_switches_only`) in cros_ec_keyb_probe(), `ckdev->idev` remains NULL. An invalid memory access is observed in cros_ec_keyb_process() when receiving an EC_MKBP_EVENT_KEY_MATRIX event in cros_ec_keyb_work() in such case.
It's still unknown about why the kernel receives such malformed event, in any cases, the kernel shouldn't access `ckdev->idev` and friends if the driver doesn't intend to initialize them.
Detalles técnicos trazas, registros y código del informe original
Unable to handle kernel read from unreadable memory at virtual address 0000000000000028 ... x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: input_event cros_ec_keyb_work blocking_notifier_call_chain ec_irq_thread
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: 0.19%
- Percentil entre todas las CVEs puntuadas: 8
- 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 (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/2d251c15c27e2dd16d6318425d2f7260cbd47d39
- https://git.kernel.org/stable/c/6d81068685154535af06163eb585d6d9663ec7ec
- https://git.kernel.org/stable/c/9cf59f4724a9ee06ebb06c76b8678ac322e850b7
- https://git.kernel.org/stable/c/d74864291cb8bd784d44d1d02e87109cf88666bb
- https://git.kernel.org/stable/c/e08969c4d65ac31297fcb4d31d4808c789152f68
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-40263",
"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": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
"lessThan": "d74864291cb8bd784d44d1d02e87109cf88666bb",
"versionType": "git"
},
{
"status": "affected",
"version": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
"lessThan": "9cf59f4724a9ee06ebb06c76b8678ac322e850b7",
"versionType": "git"
},
{
"status": "affected",
"version": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
"lessThan": "6d81068685154535af06163eb585d6d9663ec7ec",
"versionType": "git"
},
{
"status": "affected",
"version": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
"lessThan": "2d251c15c27e2dd16d6318425d2f7260cbd47d39",
"versionType": "git"
},
{
"status": "affected",
"version": "ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0",
"lessThan": "e08969c4d65ac31297fcb4d31d4808c789152f68",
"versionType": "git"
}
],
"programFiles": [
"drivers/input/keyboard/cros_ec_keyb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.159",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.118",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.60",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.10",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/input/keyboard/cros_ec_keyb.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "RUGGEDCOM RST2428P",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V4.0",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2025-12-04T16:16:20.340",
"references": [
{
"url": "https://git.kernel.org/stable/c/2d251c15c27e2dd16d6318425d2f7260cbd47d39",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6d81068685154535af06163eb585d6d9663ec7ec",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9cf59f4724a9ee06ebb06c76b8678ac322e850b7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d74864291cb8bd784d44d1d02e87109cf88666bb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e08969c4d65ac31297fcb4d31d4808c789152f68",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: cros_ec_keyb - fix an invalid memory access\n\nIf cros_ec_keyb_register_matrix() isn't called (due to\n`buttons_switches_only`) in cros_ec_keyb_probe(), `ckdev->idev` remains\nNULL. An invalid memory access is observed in cros_ec_keyb_process()\nwhen receiving an EC_MKBP_EVENT_KEY_MATRIX event in cros_ec_keyb_work()\nin such case.\n\n Unable to handle kernel read from unreadable memory at virtual address 0000000000000028\n ...\n x3 : 0000000000000000 x2 : 0000000000000000\n x1 : 0000000000000000 x0 : 0000000000000000\n Call trace:\n input_event\n cros_ec_keyb_work\n blocking_notifier_call_chain\n ec_irq_thread\n\nIt's still unknown about why the kernel receives such malformed event,\nin any cases, the kernel shouldn't access `ckdev->idev` and friends if\nthe driver doesn't intend to initialize them."
}
],
"lastModified": "2026-06-17T09:21:33.327",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}