{
  "cveId": "CVE-2026-46268",
  "url": "https://patchblox.com/security/cve/CVE-2026-46268",
  "summary": "CVE-2026-46268 is fixed in linux on 1 platform by DEBIAN-CVE-2026-46268 (version 6.18.14-1), released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning cond...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition  Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in p2pmem_alloc_mmap() it uses \u0022VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))\u0022 to assert the initial page refcount should not be zero and the following will be reported when CONFIG_DEBUG_VM is enabled:    page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x380400000   flags: 0x20000000002000(reserved|node=0|zone=4)   raw: 0020000000002000 ff1100015e3ab440 0000000000000000 0000000000000000   raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000   page dumped because: VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))   ------------[ cut here ]------------   WARNING: CPU: 5 PID: 449 at drivers/pci/p2pdma.c:240 p2pmem_alloc_mmap\u002B0x83a/0xa60  Fix by using \u0022page_ref_count(page)\u0022 as the assertion condition.",
  "published": "2026-06-03T18:16:28Z",
  "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": 0.00113,
  "epssPercentile": 0.01425,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.14-1",
      "fix": "DEBIAN-CVE-2026-46268",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-46268",
      "released": "2026-06-24T14:07:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}