CVE-2024-26659
Status: ModifiedMedium (5.5)—
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.
Read full descriptionShow less
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.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Base score: 5.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.24%
- Percentile among all scored CVEs: 14
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-787
References
- https://git.kernel.org/stable/c/2aa7bcfdbb46241c701811bbc0d64d7884e3346c
- https://git.kernel.org/stable/c/2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3
- https://git.kernel.org/stable/c/418456c0ce56209610523f21734c5612ee634134
- https://git.kernel.org/stable/c/696e4112e5c1ee61996198f0ebb6ca3fab55166e
- https://git.kernel.org/stable/c/7c4650ded49e5b88929ecbbb631efb8b0838e811
- https://git.kernel.org/stable/c/f5e7ffa9269a448a720e21f1ed1384d118298c97
- https://git.kernel.org/stable/c/2aa7bcfdbb46241c701811bbc0d64d7884e3346c
- https://git.kernel.org/stable/c/2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3
- https://git.kernel.org/stable/c/418456c0ce56209610523f21734c5612ee634134
- https://git.kernel.org/stable/c/696e4112e5c1ee61996198f0ebb6ca3fab55166e
- https://git.kernel.org/stable/c/7c4650ded49e5b88929ecbbb631efb8b0838e811
- https://git.kernel.org/stable/c/f5e7ffa9269a448a720e21f1ed1384d118298c97
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Raw JSON (NVD)
Show
{
"id": "CVE-2024-26659",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-26659",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-06-17T19:31:25.014647Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"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": "04e51901dd44f40a5a385ced897f6bca87d5f40a",
"lessThan": "696e4112e5c1ee61996198f0ebb6ca3fab55166e",
"versionType": "git"
},
{
"status": "affected",
"version": "04e51901dd44f40a5a385ced897f6bca87d5f40a",
"lessThan": "2aa7bcfdbb46241c701811bbc0d64d7884e3346c",
"versionType": "git"
},
{
"status": "affected",
"version": "04e51901dd44f40a5a385ced897f6bca87d5f40a",
"lessThan": "2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3",
"versionType": "git"
},
{
"status": "affected",
"version": "04e51901dd44f40a5a385ced897f6bca87d5f40a",
"lessThan": "f5e7ffa9269a448a720e21f1ed1384d118298c97",
"versionType": "git"
},
{
"status": "affected",
"version": "04e51901dd44f40a5a385ced897f6bca87d5f40a",
"lessThan": "418456c0ce56209610523f21734c5612ee634134",
"versionType": "git"
},
{
"status": "affected",
"version": "04e51901dd44f40a5a385ced897f6bca87d5f40a",
"lessThan": "7c4650ded49e5b88929ecbbb631efb8b0838e811",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/host/xhci-ring.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.36"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.36",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.213",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.152",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.82",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.17",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.5",
"versionType": "semver",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/host/xhci-ring.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2024-04-02T07:15:42.980",
"references": [
{
"url": "https://git.kernel.org/stable/c/2aa7bcfdbb46241c701811bbc0d64d7884e3346c",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/418456c0ce56209610523f21734c5612ee634134",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/696e4112e5c1ee61996198f0ebb6ca3fab55166e",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7c4650ded49e5b88929ecbbb631efb8b0838e811",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f5e7ffa9269a448a720e21f1ed1384d118298c97",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2aa7bcfdbb46241c701811bbc0d64d7884e3346c",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/2e3ec80ea7ba58bbb210e83b5a0afefee7c171d3",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/418456c0ce56209610523f21734c5612ee634134",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/696e4112e5c1ee61996198f0ebb6ca3fab55166e",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/7c4650ded49e5b88929ecbbb631efb8b0838e811",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/f5e7ffa9269a448a720e21f1ed1384d118298c97",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"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 prohíbe explícitamente 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 suposición y libera el TD, permitiendo que los TRB restantes sean liberados o sobrescritos por nuevos TD. El xHC también debe informar la finalización 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 liberó 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 lógica para procesar errores de transacción isoc. Esto también maneja los hosts que no informan la finalización final. Se corrigió el informe de duración de la transferencia sobre errores de Babble. Pueden deberse a un mal funcionamiento del dispositivo, no hay garantía de que se haya llenado el búfer."
}
],
"lastModified": "2026-08-04T11:16:54.247",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "399AEFF4-C09A-4528-9E27-F0E13AF7CC8B",
"versionEndExcluding": "5.10.213"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DBBE9241-559E-479A-895A-02186BA03EBF",
"versionEndExcluding": "5.15.152",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "933AC628-7DAD-4B2D-82E3-3B7B331B1C09",
"versionEndExcluding": "6.1.82",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "73F8C6ED-5A0B-4B25-8FA9-AF916A9C8F0B",
"versionEndExcluding": "6.6.17",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "01925741-2C95-47C1-A7EA-3DC2BB0012D3",
"versionEndExcluding": "6.7.5",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}