ghsa-9vr8-rq9x-pjp8
Vulnerability from github
Published
2025-09-15 15:31
Modified
2025-09-15 15:31
Details

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

ext4: fix potential out of bound read in ext4_fc_replay_scan()

For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain space less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read when mounting corrupt file system image. ADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this three tags will read data during scan, tag length couldn't less than data length which will read.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50306"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix potential out of bound read in ext4_fc_replay_scan()\n\nFor scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain\nspace less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read\nwhen mounting corrupt file system image.\nADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this\nthree tags will read data during scan, tag length couldn\u0027t less than data length\nwhich will read.",
  "id": "GHSA-9vr8-rq9x-pjp8",
  "modified": "2025-09-15T15:31:26Z",
  "published": "2025-09-15T15:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50306"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b45cc5c7b920fd8bf72e5a888ec7abeadf41e09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6969367c1500c15eddc38fda12f6d15518ad6d03"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f234294812c9b68d603650d28743eafb718e7ad5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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