{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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 \"VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))\" 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+0x83a/0xa60  Fix by using \"page_ref_count(page)\" as the assertion condition.",
  "id": "DEBIAN-CVE-2026-46268",
  "modified": "2026-09-14T16:47:43.672590322Z",
  "published": "2026-06-03T18:16:28.473Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-46268"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-46268"
  ]
}