CVE-2025-39801
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
usb: dwc3: Remove WARN_ON for device endpoint command timeouts
This commit addresses a rarely observed endpoint command timeout which causes kernel panic due to warn when 'panic_on_warn' is enabled and unnecessary call trace prints when 'panic_on_warn' is disabled. It is seen during fast software-controlled connect/disconnect testcases. The following is one such endpoint command timeout that we observed:
In the issue scenario, in Exynos platforms, we observed that control transfers for the previous connect have not yet been completed and end transfer command sent as a part of the disconnect sequence and processing of USB_ENDPOINT_HALT feature request from the host timeout.
Leer descripción completaMostrar menos
This maybe an expected scenario since the controller is processing EP commands sent as a part of the previous connect. It maybe better to remove WARN_ON in all places where device endpoint commands are sent to avoid unnecessary kernel panic due to warn.
Detalles técnicos trazas, registros y código del informe original
1. Connect
=======
->dwc3_thread_interrupt
->dwc3_ep0_interrupt
->configfs_composite_setup
->composite_setup
->usb_ep_queue
->dwc3_gadget_ep0_queue
->__dwc3_gadget_ep0_queue
->__dwc3_ep0_do_control_data
->dwc3_send_gadget_ep_cmd
2. Disconnect
==========
->dwc3_thread_interrupt
->dwc3_gadget_disconnect_interrupt
->dwc3_ep0_reset_state
->dwc3_ep0_end_control_data
->dwc3_send_gadget_ep_cmdCVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.15%
- Percentil entre todas las CVEs puntuadas: 4
- 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 (2)
CWE
- CWE-617
Referencias
- https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f
- https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8
- https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9
- https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2
- https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f
- https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-39801",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"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": "72246da40f3719af3bfd104a2365b32537c27d83",
"lessThan": "dfe40159eec6ca63b40133bfa783eee2e3ed829f",
"versionType": "git"
},
{
"status": "affected",
"version": "72246da40f3719af3bfd104a2365b32537c27d83",
"lessThan": "5a1a847d841505dba2bd85602daf5c218e1d85b8",
"versionType": "git"
},
{
"status": "affected",
"version": "72246da40f3719af3bfd104a2365b32537c27d83",
"lessThan": "84c95dbf5bece56086cdb65a64162af35158bdd9",
"versionType": "git"
},
{
"status": "affected",
"version": "72246da40f3719af3bfd104a2365b32537c27d83",
"lessThan": "f49697dfba2915a9ff36f94604eb76fa61413929",
"versionType": "git"
},
{
"status": "affected",
"version": "72246da40f3719af3bfd104a2365b32537c27d83",
"lessThan": "db27482b9db340402e05d4e9b75352bbaca51af2",
"versionType": "git"
},
{
"status": "affected",
"version": "72246da40f3719af3bfd104a2365b32537c27d83",
"lessThan": "45eae113dccaf8e502090ecf5b3d9e9b805add6f",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/dwc3/ep0.c",
"drivers/usb/dwc3/gadget.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.190",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.149",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.103",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.44",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.16.4",
"versionType": "semver",
"lessThanOrEqual": "6.16.*"
},
{
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/dwc3/ep0.c",
"drivers/usb/dwc3/gadget.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"affectedData": [
{
"vendor": "Siemens",
"product": "SIMATIC CN 4100",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V5.0",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2025-09-15T13:15:35.580",
"references": [
{
"url": "https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html",
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-617"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: Remove WARN_ON for device endpoint command timeouts\n\nThis commit addresses a rarely observed endpoint command timeout\nwhich causes kernel panic due to warn when 'panic_on_warn' is enabled\nand unnecessary call trace prints when 'panic_on_warn' is disabled.\nIt is seen during fast software-controlled connect/disconnect testcases.\nThe following is one such endpoint command timeout that we observed:\n\n1. Connect\n =======\n->dwc3_thread_interrupt\n ->dwc3_ep0_interrupt\n ->configfs_composite_setup\n ->composite_setup\n ->usb_ep_queue\n ->dwc3_gadget_ep0_queue\n ->__dwc3_gadget_ep0_queue\n ->__dwc3_ep0_do_control_data\n ->dwc3_send_gadget_ep_cmd\n\n2. Disconnect\n ==========\n->dwc3_thread_interrupt\n ->dwc3_gadget_disconnect_interrupt\n ->dwc3_ep0_reset_state\n ->dwc3_ep0_end_control_data\n ->dwc3_send_gadget_ep_cmd\n\nIn the issue scenario, in Exynos platforms, we observed that control\ntransfers for the previous connect have not yet been completed and end\ntransfer command sent as a part of the disconnect sequence and\nprocessing of USB_ENDPOINT_HALT feature request from the host timeout.\nThis maybe an expected scenario since the controller is processing EP\ncommands sent as a part of the previous connect. It maybe better to\nremove WARN_ON in all places where device endpoint commands are sent to\navoid unnecessary kernel panic due to warn."
}
],
"lastModified": "2026-06-17T09:18:30.480",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F47280F2-824C-4F32-9522-BEC57DD4A405",
"versionEndExcluding": "5.15.190",
"versionStartIncluding": "3.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FDBE8280-8983-4D2D-943D-2E6D0104E2D8",
"versionEndExcluding": "6.1.149",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F2293654-7169-49B5-8D0D-EE51EF8B8E48",
"versionEndExcluding": "6.6.103",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "12351F24-1133-4775-960C-F2B47E81298B",
"versionEndExcluding": "6.12.44",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AFC28995-B8C3-4B68-8CB6-78E792B6629D",
"versionEndExcluding": "6.16.4",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C730CD9A-D969-4A8E-9522-162AAF7C0EE9"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}