{
  "cveId": "CVE-2022-49380",
  "url": "https://patchblox.com/security/cve/CVE-2022-49380",
  "summary": "CVE-2022-49380 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49380, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to avoid f2fs_bug_on() in dec_valid_no...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()  As Yanming reported in bugzilla:  https://bugzilla.kernel.org/show_bug.cgi?id=215897  I have encountered a bug in F2FS file system in kernel v5.17.  The kernel should enable CONFIG_KASAN=y and CONFIG_KASAN_INLINE=y. You can reproduce the bug by running the following commands:  The kernel message is shown below:  kernel BUG at fs/f2fs/f2fs.h:2511! Call Trace:  f2fs_remove_inode_page\u002B0x2a2/0x830  f2fs_evict_inode\u002B0x9b7/0x1510  evict\u002B0x282/0x4e0  do_unlinkat\u002B0x33a/0x540  __x64_sys_unlinkat\u002B0x8e/0xd0  do_syscall_64\u002B0x3b/0x90  entry_SYSCALL_64_after_hwframe\u002B0x44/0xae  The root cause is: .total_valid_block_count or .total_valid_node_count could fuzzed to zero, then once dec_valid_node_count() was called, it will cause BUG_ON(), this patch fixes to print warning info and set SBI_NEED_FSCK into CP instead of panic.",
  "published": "2025-02-26T07:01:14Z",
  "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": 0.00262,
  "epssPercentile": 0.18131,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49380",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49380",
      "released": "2025-02-26T07:01:14Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49380",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49380",
      "released": "2025-02-26T07:01:14Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49380",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49380",
      "released": "2025-02-26T07:01:14Z"
    }
  ],
  "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"
  }
}