CVE-2026-23031
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak
In gs_can_open(), the URBs for USB-in transfers are allocated, added to the parent->rx_submitted anchor and submitted. In the complete callback gs_usb_receive_bulk_callback(), the URB is processed and resubmitted. In gs_can_close() the URBs are freed by calling usb_kill_anchored_urbs(parent->rx_submitted).
However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in gs_can_close().
Leer descripción completaMostrar menos
Fix the memory leak by anchoring the URB in the gs_usb_receive_bulk_callback() to the parent->rx_submitted anchor.
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: 0.22%
- Percentil entre todas las CVEs puntuadas: 12
- 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/08624b7206ddb9148eeffc2384ebda2c47b6d1e9
- https://git.kernel.org/stable/c/7352e1d5932a0e777e39fa4b619801191f57e603
- https://git.kernel.org/stable/c/9c151898cc259a7784be60ba38664f42ede39b31
- https://git.kernel.org/stable/c/9f669a38ca70839229b7ba0f851820850a2fe1f7
- https://git.kernel.org/stable/c/ec5ccc2af9e5b045671f3f604b57512feda8bcc5
- https://git.kernel.org/stable/c/f905bcfa971edb89e398c98957838d8c6381c0c7
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-23031",
"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": "d08e973a77d128b25e01a08c34d89593fdf222da",
"lessThan": "9c151898cc259a7784be60ba38664f42ede39b31",
"versionType": "git"
},
{
"status": "affected",
"version": "d08e973a77d128b25e01a08c34d89593fdf222da",
"lessThan": "ec5ccc2af9e5b045671f3f604b57512feda8bcc5",
"versionType": "git"
},
{
"status": "affected",
"version": "d08e973a77d128b25e01a08c34d89593fdf222da",
"lessThan": "f905bcfa971edb89e398c98957838d8c6381c0c7",
"versionType": "git"
},
{
"status": "affected",
"version": "d08e973a77d128b25e01a08c34d89593fdf222da",
"lessThan": "08624b7206ddb9148eeffc2384ebda2c47b6d1e9",
"versionType": "git"
},
{
"status": "affected",
"version": "d08e973a77d128b25e01a08c34d89593fdf222da",
"lessThan": "9f669a38ca70839229b7ba0f851820850a2fe1f7",
"versionType": "git"
},
{
"status": "affected",
"version": "d08e973a77d128b25e01a08c34d89593fdf222da",
"lessThan": "7352e1d5932a0e777e39fa4b619801191f57e603",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/can/usb/gs_usb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.203",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.162",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.122",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.67",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.7",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/can/usb/gs_usb.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": "2026-01-31T12:16:06.413",
"references": [
{
"url": "https://git.kernel.org/stable/c/08624b7206ddb9148eeffc2384ebda2c47b6d1e9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7352e1d5932a0e777e39fa4b619801191f57e603",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9c151898cc259a7784be60ba38664f42ede39b31",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9f669a38ca70839229b7ba0f851820850a2fe1f7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ec5ccc2af9e5b045671f3f604b57512feda8bcc5",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f905bcfa971edb89e398c98957838d8c6381c0c7",
"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\ncan: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak\n\nIn gs_can_open(), the URBs for USB-in transfers are allocated, added to the\nparent->rx_submitted anchor and submitted. In the complete callback\ngs_usb_receive_bulk_callback(), the URB is processed and resubmitted. In\ngs_can_close() the URBs are freed by calling\nusb_kill_anchored_urbs(parent->rx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in gs_can_close().\n\nFix the memory leak by anchoring the URB in the\ngs_usb_receive_bulk_callback() to the parent->rx_submitted anchor."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): corregir fuga de memoria de URB\n\nEn gs_can_open(), los URB para transferencias USB de entrada son asignados, añadidos al ancla parent->rx_submitted y enviados. En la función de devolución de llamada completa gs_usb_receive_bulk_callback(), el URB es procesado y reenviado. En gs_can_close(), los URB son liberados llamando a usb_kill_anchored_urbs(parent->rx_submitted).\n\nSin embargo, esto no tiene en cuenta que el framework USB desancla el URB antes de que se llame a la función completa. Esto significa que una vez que un URB de entrada ha sido completado, ya no está anclado y finalmente no es liberado en gs_can_close().\n\nCorregir la fuga de memoria anclando el URB en gs_usb_receive_bulk_callback() al ancla parent->rx_submitted."
}
],
"lastModified": "2026-06-17T10:20:44.640",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}