fkie_cve-2025-68750
Vulnerability from fkie_nvd
Published
2025-12-24 16:15
Modified
2025-12-24 16:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: potential integer overflow in usbg_make_tpg() The variable tpgt in usbg_make_tpg() is defined as unsigned long and is assigned to tpgt->tport_tpgt, which is defined as u16. This may cause an integer overflow when tpgt is greater than USHRT_MAX (65535). I haven't tried to trigger it myself, but it is possible to trigger it by calling usbg_make_tpg() with a large value for tpgt. I modified the type of tpgt to match tpgt->tport_tpgt and adjusted the relevant code accordingly. This patch is similar to commit 59c816c1f24d ("vhost/scsi: potential memory corruption").
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/153874010354d050f62f8ae25cbb960c17633dc5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/358d5ba08f1609c34a054aed88c431844d09705a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/603a83e5fee38a950bfcfb2f36449311fa00a474
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/620a5e1e84a3a7004270703a118d33eeb1c0f368
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6722e080b5b39ab7471386c73d0c1b39572f943c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f77e344515b5258edb3988188311464209b1c7c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a33f507f36d5881f602dab581ab0f8d22b49762c
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: potential integer overflow in usbg_make_tpg()\n\nThe variable tpgt in usbg_make_tpg() is defined as unsigned long and is\nassigned to tpgt-\u003etport_tpgt, which is defined as u16. This may cause an\ninteger overflow when tpgt is greater than USHRT_MAX (65535). I\nhaven\u0027t tried to trigger it myself, but it is possible to trigger it\nby calling usbg_make_tpg() with a large value for tpgt.\n\nI modified the type of tpgt to match tpgt-\u003etport_tpgt and adjusted the\nrelevant code accordingly.\n\nThis patch is similar to commit 59c816c1f24d (\"vhost/scsi: potential\nmemory corruption\")."
    }
  ],
  "id": "CVE-2025-68750",
  "lastModified": "2025-12-24T16:15:48.687",
  "metrics": {},
  "published": "2025-12-24T16:15:48.687",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/153874010354d050f62f8ae25cbb960c17633dc5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/358d5ba08f1609c34a054aed88c431844d09705a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/603a83e5fee38a950bfcfb2f36449311fa00a474"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/620a5e1e84a3a7004270703a118d33eeb1c0f368"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6722e080b5b39ab7471386c73d0c1b39572f943c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6f77e344515b5258edb3988188311464209b1c7c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a33f507f36d5881f602dab581ab0f8d22b49762c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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