CVE-2025-39801 (GCVE-0-2025-39801)
Vulnerability from cvelistv5
Published
2025-09-15 12:36
Modified
2025-09-15 12:36
Severity ?
Summary
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: 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_cmd 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. 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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/dwc3/ep0.c",
            "drivers/usb/dwc3/gadget.c"
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/usb/dwc3/ep0.c",
            "drivers/usb/dwc3/gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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      "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 \u0027panic_on_warn\u0027 is enabled\nand unnecessary call trace prints when \u0027panic_on_warn\u0027 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-\u003edwc3_thread_interrupt\n -\u003edwc3_ep0_interrupt\n  -\u003econfigfs_composite_setup\n   -\u003ecomposite_setup\n    -\u003eusb_ep_queue\n     -\u003edwc3_gadget_ep0_queue\n      -\u003e__dwc3_gadget_ep0_queue\n       -\u003e__dwc3_ep0_do_control_data\n        -\u003edwc3_send_gadget_ep_cmd\n\n2. Disconnect\n   ==========\n-\u003edwc3_thread_interrupt\n -\u003edwc3_gadget_disconnect_interrupt\n  -\u003edwc3_ep0_reset_state\n   -\u003edwc3_ep0_end_control_data\n    -\u003edwc3_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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T12:36:43.936Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f"
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          "url": "https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8"
        },
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          "url": "https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9"
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        {
          "url": "https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f"
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      "title": "usb: dwc3: Remove WARN_ON for device endpoint command timeouts",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39801",
    "datePublished": "2025-09-15T12:36:43.936Z",
    "dateReserved": "2025-04-16T07:20:57.134Z",
    "dateUpdated": "2025-09-15T12:36:43.936Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-39801\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-15T13:15:35.580\",\"lastModified\":\"2025-09-15T15:21:42.937\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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 \u0027panic_on_warn\u0027 is enabled\\nand unnecessary call trace prints when \u0027panic_on_warn\u0027 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-\u003edwc3_thread_interrupt\\n -\u003edwc3_ep0_interrupt\\n  -\u003econfigfs_composite_setup\\n   -\u003ecomposite_setup\\n    -\u003eusb_ep_queue\\n     -\u003edwc3_gadget_ep0_queue\\n      -\u003e__dwc3_gadget_ep0_queue\\n       -\u003e__dwc3_ep0_do_control_data\\n        -\u003edwc3_send_gadget_ep_cmd\\n\\n2. Disconnect\\n   ==========\\n-\u003edwc3_thread_interrupt\\n -\u003edwc3_gadget_disconnect_interrupt\\n  -\u003edwc3_ep0_reset_state\\n   -\u003edwc3_ep0_end_control_data\\n    -\u003edwc3_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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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