fkie_cve-2022-50484
Vulnerability from fkie_nvd
Published
2025-10-04 16:15
Modified
2025-10-06 14:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks When the driver hits -ENOMEM at allocating a URB or a buffer, it aborts and goes to the error path that releases the all previously allocated resources. However, when -ENOMEM hits at the middle of the sync EP URB allocation loop, the partially allocated URBs might be left without released, because ep->nurbs is still zero at that point. Fix it by setting ep->nurbs at first, so that the error handler loops over the full URB list.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0604e5e5537af099ea2f6dfd892afe5c92db8a80
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0672215994e2347a9b4f145e2bc1709b1e01cee3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28d8d267af5d73f91d7640cbdb4024703256e36c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/46f0aed47673e275d682af60ed26dcc28add8eae
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6382da0828995af87aa8b8bef28cc61aceb4aff3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/988ec0cd0a2643c25c1658f7c33de2e15a5a2e31
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bc1d16d282bca421c6fc31de4b8fd412010f01bd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e4442410f76d66b9f7e854010bce04853f665324
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/faa8c1ed77d0169955b9b3516b714cc5fb512f27
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix potential memory leaks\n\nWhen the driver hits -ENOMEM at allocating a URB or a buffer, it\naborts and goes to the error path that releases the all previously\nallocated resources.  However, when -ENOMEM hits at the middle of the\nsync EP URB allocation loop, the partially allocated URBs might be\nleft without released, because ep-\u003enurbs is still zero at that point.\n\nFix it by setting ep-\u003enurbs at first, so that the error handler loops\nover the full URB list."
    }
  ],
  "id": "CVE-2022-50484",
  "lastModified": "2025-10-06T14:56:47.823",
  "metrics": {},
  "published": "2025-10-04T16:15:45.210",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0604e5e5537af099ea2f6dfd892afe5c92db8a80"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0672215994e2347a9b4f145e2bc1709b1e01cee3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/28d8d267af5d73f91d7640cbdb4024703256e36c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/46f0aed47673e275d682af60ed26dcc28add8eae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6382da0828995af87aa8b8bef28cc61aceb4aff3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/988ec0cd0a2643c25c1658f7c33de2e15a5a2e31"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bc1d16d282bca421c6fc31de4b8fd412010f01bd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4442410f76d66b9f7e854010bce04853f665324"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/faa8c1ed77d0169955b9b3516b714cc5fb512f27"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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