GHSA-HP26-CM5Q-WMVQ

Vulnerability from github – Published: 2024-05-19 12:30 – Updated: 2025-12-17 06:31
VLAI?
Details

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

btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()

The unhandled case in btrfs_relocate_sys_chunks() loop is a corruption, as it could be caused only by two impossible conditions:

  • at first the search key is set up to look for a chunk tree item, with offset -1, this is an inexact search and the key->offset will contain the correct offset upon a successful search, a valid chunk tree item cannot have an offset -1

  • after first successful search, the found_key corresponds to a chunk item, the offset is decremented by 1 before the next loop, it's impossible to find a chunk item there due to alignment and size constraints

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-35936"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-19T11:15:49Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()\n\nThe unhandled case in btrfs_relocate_sys_chunks() loop is a corruption,\nas it could be caused only by two impossible conditions:\n\n- at first the search key is set up to look for a chunk tree item, with\n  offset -1, this is an inexact search and the key-\u003eoffset will contain\n  the correct offset upon a successful search, a valid chunk tree item\n  cannot have an offset -1\n\n- after first successful search, the found_key corresponds to a chunk\n  item, the offset is decremented by 1 before the next loop, it\u0027s\n  impossible to find a chunk item there due to alignment and size\n  constraints",
  "id": "GHSA-hp26-cm5q-wmvq",
  "modified": "2025-12-17T06:31:23Z",
  "published": "2024-05-19T12:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35936"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d23b34c68c46cd225b55868bc8a269e3134816d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f9212cdbd005bc55f2b7422e7b560d9c02bd1da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36c2a2863bc3896243eb724dc3fd4cf9aea633f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/576164bd01bd795f8b09fb194b493103506b33c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7411055db5ce64f836aaffd422396af0075fdc99"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87299cdaae757f3f41212146cfb5b3af416b8385"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bebd9e0ff90034875c5dfe4bd514fd7055fc7a89"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1ffa4ae2d591fdd40471074e79954ec45f147f7"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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