{
  "cveId": "CVE-2022-49879",
  "url": "https://patchblox.com/security/cve/CVE-2022-49879",
  "summary": "CVE-2022-49879 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49879, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ext4: fix BUG_ON() when directory entry has inva...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ext4: fix BUG_ON() when directory entry has invalid rec_len  The rec_len field in the directory entry has to be a multiple of 4.  A corrupted filesystem image can be used to hit a BUG() in ext4_rec_len_to_disk(), called from make_indexed_dir().   ------------[ cut here ]------------  kernel BUG at fs/ext4/ext4.h:2413!  ...  RIP: 0010:make_indexed_dir\u002B0x53f/0x5f0  ...  Call Trace:   \u003CTASK\u003E   ? add_dirent_to_buf\u002B0x1b2/0x200   ext4_add_entry\u002B0x36e/0x480   ext4_add_nondir\u002B0x2b/0xc0   ext4_create\u002B0x163/0x200   path_openat\u002B0x635/0xe90   do_filp_open\u002B0xb4/0x160   ? __create_object.isra.0\u002B0x1de/0x3b0   ? _raw_spin_unlock\u002B0x12/0x30   do_sys_openat2\u002B0x91/0x150   __x64_sys_open\u002B0x6c/0xa0   do_syscall_64\u002B0x3c/0x80   entry_SYSCALL_64_after_hwframe\u002B0x46/0xb0  The fix simply adds a call to ext4_check_dir_entry() to validate the directory entry, returning -EFSCORRUPTED if the entry is invalid.",
  "published": "2025-05-01T15:16:12Z",
  "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": 0.00218,
  "epssPercentile": 0.12382,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49879",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49879",
      "released": "2025-05-01T15:16:12Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49879",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49879",
      "released": "2025-05-01T15:16:12Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49879",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49879",
      "released": "2025-05-01T15:16:12Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}