{
  "cveId": "CVE-2024-36966",
  "url": "https://patchblox.com/security/cve/CVE-2024-36966",
  "summary": "CVE-2024-36966 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-36966, released June 8, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  erofs: reliably distinguish block based and fsca...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  erofs: reliably distinguish block based and fscache mode  When erofs_kill_sb() is called in block dev based mode, s_bdev may not have been initialised yet, and if CONFIG_EROFS_FS_ONDEMAND is enabled, it will be mistaken for fscache mode, and then attempt to free an anon_dev that has never been allocated, triggering the following warning:  ============================================ ida_free called for id=0 which is not allocated. WARNING: CPU: 14 PID: 926 at lib/idr.c:525 ida_free\u002B0x134/0x140 Modules linked in: CPU: 14 PID: 926 Comm: mount Not tainted 6.9.0-rc3-dirty #630 RIP: 0010:ida_free\u002B0x134/0x140 Call Trace:  \u003CTASK\u003E  erofs_kill_sb\u002B0x81/0x90  deactivate_locked_super\u002B0x35/0x80  get_tree_bdev\u002B0x136/0x1e0  vfs_get_tree\u002B0x2c/0xf0  do_new_mount\u002B0x190/0x2f0  [...] ============================================  Now when erofs_kill_sb() is called, erofs_sb_info must have been initialised, so use sbi-\u003Efsid to distinguish between the two modes.",
  "published": "2024-06-08T13:15:57Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0021,
  "epssPercentile": 0.11207,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.8.11-1",
      "fix": "DEBIAN-CVE-2024-36966",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-36966",
      "released": "2024-06-08T13:15:57Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.8.11-1",
      "fix": "DEBIAN-CVE-2024-36966",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-36966",
      "released": "2024-06-08T13:15:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}