{
  "cveId": "CVE-2022-49464",
  "url": "https://patchblox.com/security/cve/CVE-2022-49464",
  "summary": "CVE-2022-49464 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49464, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  erofs: fix buffer copy overflow of ztailpacking...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  erofs: fix buffer copy overflow of ztailpacking feature  I got some KASAN report as below:  [   46.959738] ================================================================== [   46.960430] BUG: KASAN: use-after-free in z_erofs_shifted_transform\u002B0x2bd/0x370 [   46.960430] Read of size 4074 at addr ffff8880300c2f8e by task fssum/188 ... [   46.960430] Call Trace: [   46.960430]  \u003CTASK\u003E [   46.960430]  dump_stack_lvl\u002B0x41/0x5e [   46.960430]  print_report.cold\u002B0xb2/0x6b7 [   46.960430]  ? z_erofs_shifted_transform\u002B0x2bd/0x370 [   46.960430]  kasan_report\u002B0x8a/0x140 [   46.960430]  ? z_erofs_shifted_transform\u002B0x2bd/0x370 [   46.960430]  kasan_check_range\u002B0x14d/0x1d0 [   46.960430]  memcpy\u002B0x20/0x60 [   46.960430]  z_erofs_shifted_transform\u002B0x2bd/0x370 [   46.960430]  z_erofs_decompress_pcluster\u002B0xaae/0x1080  The root cause is that the tail pcluster won\u0027t be a complete filesystem block anymore. So if ztailpacking is used, the second part of an uncompressed tail pcluster may not be \u0060\u0060rq-\u003Epageofs_out\u0060\u0060.",
  "published": "2025-02-26T07:01:22Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00264,
  "epssPercentile": 0.18451,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49464",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49464",
      "released": "2025-02-26T07:01:22Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49464",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49464",
      "released": "2025-02-26T07:01:22Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49464",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49464",
      "released": "2025-02-26T07:01:22Z"
    }
  ],
  "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"
  }
}