FKIE_CVE-2025-38555

Vulnerability from fkie_nvd - Published: 2025-08-19 17:15 - Updated: 2026-01-08 20:49
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: gadget : fix use-after-free in composite_dev_cleanup() 1. In func configfs_composite_bind() -> composite_os_desc_req_prepare(): if kmalloc fails, the pointer cdev->os_desc_req will be freed but not set to NULL. Then it will return a failure to the upper-level function. 2. in func configfs_composite_bind() -> composite_dev_cleanup(): it will checks whether cdev->os_desc_req is NULL. If it is not NULL, it will attempt to use it.This will lead to a use-after-free issue. BUG: KASAN: use-after-free in composite_dev_cleanup+0xf4/0x2c0 Read of size 8 at addr 0000004827837a00 by task init/1 CPU: 10 PID: 1 Comm: init Tainted: G O 5.10.97-oh #1 kasan_report+0x188/0x1cc __asan_load8+0xb4/0xbc composite_dev_cleanup+0xf4/0x2c0 configfs_composite_bind+0x210/0x7ac udc_bind_to_driver+0xb4/0x1ec usb_gadget_probe_driver+0xec/0x21c gadget_dev_desc_UDC_store+0x264/0x27c
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/151c0aa896c47a4459e07fee7d4843f44c1bb18ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2db29235e900a084a656dea7e0939b0abb7bb897Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f06ee9f9a3665d43133f125c17e5258a13f3963Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8afb22aa063f706f3343707cdfb8cda4d021dd33Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aada327a9f8028c573636fa60c0abc80fb8135c9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd3c4ef60baf7f65c963f3e12d9d7b2b091e20baPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dba96dfa5a0f685b959dd28a52ac8dab0b805204Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e1be1f380c82a69f80c68c96a7cfe8759fb30355Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e624bf26127645a2f7821e73fdf6dc64bad07835Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory, Mailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory, Mailing List
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 11.0
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget : fix use-after-free in composite_dev_cleanup()\n\n1. In func configfs_composite_bind() -\u003e composite_os_desc_req_prepare():\nif kmalloc fails, the pointer cdev-\u003eos_desc_req will be freed but not\nset to NULL. Then it will return a failure to the upper-level function.\n2. in func configfs_composite_bind() -\u003e composite_dev_cleanup():\nit will checks whether cdev-\u003eos_desc_req is NULL. If it is not NULL, it\nwill attempt to use it.This will lead to a use-after-free issue.\n\nBUG: KASAN: use-after-free in composite_dev_cleanup+0xf4/0x2c0\nRead of size 8 at addr 0000004827837a00 by task init/1\n\nCPU: 10 PID: 1 Comm: init Tainted: G           O      5.10.97-oh #1\n kasan_report+0x188/0x1cc\n __asan_load8+0xb4/0xbc\n composite_dev_cleanup+0xf4/0x2c0\n configfs_composite_bind+0x210/0x7ac\n udc_bind_to_driver+0xb4/0x1ec\n usb_gadget_probe_driver+0xec/0x21c\n gadget_dev_desc_UDC_store+0x264/0x27c"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: correcci\u00f3n del problema de use-after-free en composite_dev_cleanup(). 1. En la funci\u00f3n configfs_composite_bind() -\u0026gt; composite_os_desc_req_prepare(): si kmalloc falla, el puntero cdev-\u0026gt;os_desc_req se liberar\u00e1, pero no se establecer\u00e1 en NULL. En ese caso, devolver\u00e1 un error a la funci\u00f3n de nivel superior. 2. En la funci\u00f3n configfs_composite_bind() -\u0026gt; composite_dev_cleanup(): comprobar\u00e1 si cdev-\u0026gt;os_desc_req es NULL. Si no lo es, intentar\u00e1 usarlo. Esto provocar\u00e1 un problema de use-after-free. ERROR: KASAN: use-after-free en composite_dev_cleanup+0xf4/0x2c0 Lectura de tama\u00f1o 8 en la direcci\u00f3n 0000004827837a00 por la tarea init/1 CPU: 10 PID: 1 Comm: init Contaminado: GO 5.10.97-oh #1 kasan_report+0x188/0x1cc __asan_load8+0xb4/0xbc composite_dev_cleanup+0xf4/0x2c0 configfs_composite_bind+0x210/0x7ac udc_bind_to_driver+0xb4/0x1ec usb_gadget_probe_driver+0xec/0x21c gadget_dev_desc_UDC_store+0x264/0x27c"
    }
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  "id": "CVE-2025-38555",
  "lastModified": "2026-01-08T20:49:46.560",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2025-08-19T17:15:31.667",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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