ghsa-hq4c-8mm4-wqfv
Vulnerability from github
Published
2025-01-19 12:31
Modified
2025-02-02 12:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null

Considering that in some extreme cases, when performing the unbinding operation, gserial_disconnect has cleared gser->ioport, which triggers gadget reconfiguration, and then calls gs_read_complete, resulting in access to a null pointer. Therefore, ep is disabled before gserial_disconnect sets port to null to prevent this from happening.

Call trace: gs_read_complete+0x58/0x240 usb_gadget_giveback_request+0x40/0x160 dwc3_remove_requests+0x170/0x484 dwc3_ep0_out_start+0xb0/0x1d4 __dwc3_gadget_start+0x25c/0x720 kretprobe_trampoline.cfi_jt+0x0/0x8 kretprobe_trampoline.cfi_jt+0x0/0x8 udc_bind_to_driver+0x1d8/0x300 usb_gadget_probe_driver+0xa8/0x1dc gadget_dev_desc_UDC_store+0x13c/0x188 configfs_write_iter+0x160/0x1f4 vfs_write+0x2d0/0x40c ksys_write+0x7c/0xf0 __arm64_sys_write+0x20/0x30 invoke_syscall+0x60/0x150 el0_svc_common+0x8c/0xf8 do_el0_svc+0x28/0xa0 el0_svc+0x24/0x84

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{
  "affected": [],
  "aliases": [
    "CVE-2024-57915"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-19T12:15:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null\n\nConsidering that in some extreme cases, when performing the\nunbinding operation, gserial_disconnect has cleared gser-\u003eioport,\nwhich triggers gadget reconfiguration, and then calls gs_read_complete,\nresulting in access to a null pointer. Therefore, ep is disabled before\ngserial_disconnect sets port to null to prevent this from happening.\n\nCall trace:\n gs_read_complete+0x58/0x240\n usb_gadget_giveback_request+0x40/0x160\n dwc3_remove_requests+0x170/0x484\n dwc3_ep0_out_start+0xb0/0x1d4\n __dwc3_gadget_start+0x25c/0x720\n kretprobe_trampoline.cfi_jt+0x0/0x8\n kretprobe_trampoline.cfi_jt+0x0/0x8\n udc_bind_to_driver+0x1d8/0x300\n usb_gadget_probe_driver+0xa8/0x1dc\n gadget_dev_desc_UDC_store+0x13c/0x188\n configfs_write_iter+0x160/0x1f4\n vfs_write+0x2d0/0x40c\n ksys_write+0x7c/0xf0\n __arm64_sys_write+0x20/0x30\n invoke_syscall+0x60/0x150\n el0_svc_common+0x8c/0xf8\n do_el0_svc+0x28/0xa0\n el0_svc+0x24/0x84",
  "id": "GHSA-hq4c-8mm4-wqfv",
  "modified": "2025-02-02T12:30:25Z",
  "published": "2025-01-19T12:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57915"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c50f00cc29948184af05bda31392fff5821f4f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1062b648bff63ed62b2d47a045e08ea9741d98ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13014969cbf07f18d62ceea40bd8ca8ec9d36cec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d730e8758c75b68a0152ee1ac48a270ea6725b4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e122d780a0f19aefd700dbd0b0e3ed3af0ae97f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2de56cc45ee447f005d63217e84988b4f02faa9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5f33fb57aae12e4b0add79e0242f458ea0bc510"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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