{
  "cveId": "CVE-2022-49894",
  "url": "https://patchblox.com/security/cve/CVE-2022-49894",
  "summary": "CVE-2022-49894 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49894, 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:  cxl/region: Fix region HPA ordering validation...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  cxl/region: Fix region HPA ordering validation  Some regions may not have any address space allocated. Skip them when validating HPA order otherwise a crash like the following may result:   devm_cxl_add_region: cxl_acpi cxl_acpi.0: decoder3.4: created region9  BUG: kernel NULL pointer dereference, address: 0000000000000000  [..]  RIP: 0010:store_targetN\u002B0x655/0x1740 [cxl_core]  [..]  Call Trace:   \u003CTASK\u003E   kernfs_fop_write_iter\u002B0x144/0x200   vfs_write\u002B0x24a/0x4d0   ksys_write\u002B0x69/0xf0   do_syscall_64\u002B0x3a/0x90  store_targetN\u002B0x655/0x1740: alloc_region_ref at drivers/cxl/core/region.c:676 (inlined by) cxl_port_attach_region at drivers/cxl/core/region.c:850 (inlined by) cxl_region_attach at drivers/cxl/core/region.c:1290 (inlined by) attach_target at drivers/cxl/core/region.c:1410 (inlined by) store_targetN at drivers/cxl/core/region.c:1453",
  "published": "2025-05-01T15:16:14Z",
  "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": 0.0017,
  "epssPercentile": 0.06435,
  "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-2022-49894",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49894",
      "released": "2025-05-01T15:16:14Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49894",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49894",
      "released": "2025-05-01T15:16:14Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49894",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49894",
      "released": "2025-05-01T15:16:14Z"
    }
  ],
  "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"
  }
}