ghsa-3f2p-fcxq-w4cm
Vulnerability from github
Published
2024-05-21 18:31
Modified
2024-05-21 18:31
Details

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

media: gspca: cpia1: shift-out-of-bounds in set_flicker

Syzkaller reported the following issue: UBSAN: shift-out-of-bounds in drivers/media/usb/gspca/cpia1.c:1031:27 shift exponent 245 is too large for 32-bit type 'int'

When the value of the variable "sd->params.exposure.gain" exceeds the number of bits in an integer, a shift-out-of-bounds error is reported. It is triggered because the variable "currentexp" cannot be left-shifted by more than the number of bits in an integer. In order to avoid invalid range during left-shift, the conditional expression is added.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52764"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:15Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: gspca: cpia1: shift-out-of-bounds in set_flicker\n\nSyzkaller reported the following issue:\nUBSAN: shift-out-of-bounds in drivers/media/usb/gspca/cpia1.c:1031:27\nshift exponent 245 is too large for 32-bit type \u0027int\u0027\n\nWhen the value of the variable \"sd-\u003eparams.exposure.gain\" exceeds the\nnumber of bits in an integer, a shift-out-of-bounds error is reported. It\nis triggered because the variable \"currentexp\" cannot be left-shifted by\nmore than the number of bits in an integer. In order to avoid invalid\nrange during left-shift, the conditional expression is added.",
  "id": "GHSA-3f2p-fcxq-w4cm",
  "modified": "2024-05-21T18:31:20Z",
  "published": "2024-05-21T18:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52764"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/099be1822d1f095433f4b08af9cc9d6308ec1953"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09cd8b561aa9796903710a1046957f2b112c8f26"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2eee8edfff90e22980a6b22079d238c3c9d323bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69bba62600bd91d6b7c1e8ca181faf8ac64f7060"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f83c85ee88225319c52680792320c02158c2a9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93bddd6529f187f510eec759f37d0569243c9809"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a647f27a7426d2fe1b40da7c8fa2b81354a51177"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6b6b8692218da73b33b310d7c1df90f115bdd9a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2d7149b913d14352c82624e723ce1c211ca06d3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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