gsd-2024-26659
Vulnerability from gsd
Modified
2024-02-20 06:02
Details
In the Linux kernel, the following vulnerability has been resolved:
xhci: handle isoc Babble and Buffer Overrun events properly
xHCI 4.9 explicitly forbids assuming that the xHC has released its
ownership of a multi-TRB TD when it reports an error on one of the
early TRBs. Yet the driver makes such assumption and releases the TD,
allowing the remaining TRBs to be freed or overwritten by new TDs.
The xHC should also report completion of the final TRB due to its IOC
flag being set by us, regardless of prior errors. This event cannot
be recognized if the TD has already been freed earlier, resulting in
"Transfer event TRB DMA ptr not part of current TD" error message.
Fix this by reusing the logic for processing isoc Transaction Errors.
This also handles hosts which fail to report the final completion.
Fix transfer length reporting on Babble errors. They may be caused by
device malfunction, no guarantee that the buffer has been filled.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2024-26659"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: handle isoc Babble and Buffer Overrun events properly\n\nxHCI 4.9 explicitly forbids assuming that the xHC has released its\nownership of a multi-TRB TD when it reports an error on one of the\nearly TRBs. Yet the driver makes such assumption and releases the TD,\nallowing the remaining TRBs to be freed or overwritten by new TDs.\n\nThe xHC should also report completion of the final TRB due to its IOC\nflag being set by us, regardless of prior errors. This event cannot\nbe recognized if the TD has already been freed earlier, resulting in\n\"Transfer event TRB DMA ptr not part of current TD\" error message.\n\nFix this by reusing the logic for processing isoc Transaction Errors.\nThis also handles hosts which fail to report the final completion.\n\nFix transfer length reporting on Babble errors. They may be caused by\ndevice malfunction, no guarantee that the buffer has been filled.",
"id": "GSD-2024-26659",
"modified": "2024-02-20T06:02:29.210687Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "1da177e4c3f4",
"version_value": "696e4112e5c1"
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{
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"status": "unaffected",
"version": "5.10.213",
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"status": "unaffected",
"version": "5.15.152",
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"status": "unaffected",
"version": "6.1.82",
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"version": "6.6.17",
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"version": "6.7.5",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: handle isoc Babble and Buffer Overrun events properly\n\nxHCI 4.9 explicitly forbids assuming that the xHC has released its\nownership of a multi-TRB TD when it reports an error on one of the\nearly TRBs. Yet the driver makes such assumption and releases the TD,\nallowing the remaining TRBs to be freed or overwritten by new TDs.\n\nThe xHC should also report completion of the final TRB due to its IOC\nflag being set by us, regardless of prior errors. This event cannot\nbe recognized if the TD has already been freed earlier, resulting in\n\"Transfer event TRB DMA ptr not part of current TD\" error message.\n\nFix this by reusing the logic for processing isoc Transaction Errors.\nThis also handles hosts which fail to report the final completion.\n\nFix transfer length reporting on Babble errors. They may be caused by\ndevice malfunction, no guarantee that the buffer has been filled."
}
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"name": "https://git.kernel.org/stable/c/696e4112e5c1ee61996198f0ebb6ca3fab55166e",
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"name": "https://git.kernel.org/stable/c/2aa7bcfdbb46241c701811bbc0d64d7884e3346c",
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"name": "https://git.kernel.org/stable/c/f5e7ffa9269a448a720e21f1ed1384d118298c97",
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"url": "https://git.kernel.org/stable/c/f5e7ffa9269a448a720e21f1ed1384d118298c97"
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"name": "https://git.kernel.org/stable/c/7c4650ded49e5b88929ecbbb631efb8b0838e811",
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: handle isoc Babble and Buffer Overrun events properly\n\nxHCI 4.9 explicitly forbids assuming that the xHC has released its\nownership of a multi-TRB TD when it reports an error on one of the\nearly TRBs. Yet the driver makes such assumption and releases the TD,\nallowing the remaining TRBs to be freed or overwritten by new TDs.\n\nThe xHC should also report completion of the final TRB due to its IOC\nflag being set by us, regardless of prior errors. This event cannot\nbe recognized if the TD has already been freed earlier, resulting in\n\"Transfer event TRB DMA ptr not part of current TD\" error message.\n\nFix this by reusing the logic for processing isoc Transaction Errors.\nThis also handles hosts which fail to report the final completion.\n\nFix transfer length reporting on Babble errors. They may be caused by\ndevice malfunction, no guarantee that the buffer has been filled."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xhci: maneja correctamente los eventos isoc Babble y Buffer Overrun xHCI 4.9 proh\u00edbe expl\u00edcitamente suponer que xHC ha liberado su propiedad de un TD multi-TRB cuando informa un error en uno de los primeros TRB. Sin embargo, el conductor hace tal suposici\u00f3n y libera el TD, permitiendo que los TRB restantes sean liberados o sobrescritos por nuevos TD. El xHC tambi\u00e9n debe informar la finalizaci\u00f3n del TRB final debido a que nosotros establecimos la bandera del COI, independientemente de los errores anteriores. Este evento no se puede reconocer si el TD ya se liber\u00f3 anteriormente, lo que genera el mensaje de error \"Evento de transferencia TRB DMA ptr no forma parte del TD actual\". Solucione este problema reutilizando la l\u00f3gica para procesar errores de transacci\u00f3n isoc. Esto tambi\u00e9n maneja los hosts que no informan la finalizaci\u00f3n final. Se corrigi\u00f3 el informe de duraci\u00f3n de la transferencia sobre errores de Babble. Pueden deberse a un mal funcionamiento del dispositivo, no hay garant\u00eda de que se haya llenado el b\u00fafer."
}
],
"id": "CVE-2024-26659",
"lastModified": "2024-04-02T12:50:42.233",
"metrics": {},
"published": "2024-04-02T07:15:42.980",
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.