{
  "cveId": "CVE-2026-31594",
  "url": "https://patchblox.com/security/cve/CVE-2026-31594",
  "summary": "CVE-2026-31594 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-31594, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown  epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to perform later. This leads to an oops when .allow_link fails or when .drop_link is performed. The following is an example oops of the former case:    Unable to handle kernel paging request at virtual address dead000000000108   [...]   [dead000000000108] address between user and kernel address ranges   Internal error: Oops: 0000000096000044 [#1]  SMP   [...]   Call trace:    pci_epc_remove_epf\u002B0x78/0xe0 (P)    pci_primary_epc_epf_link\u002B0x88/0xa8    configfs_symlink\u002B0x1f4/0x5a0    vfs_symlink\u002B0x134/0x1d8    do_symlinkat\u002B0x88/0x138    __arm64_sys_symlinkat\u002B0x74/0xe0   [...]  Remove the helper, and drop pci_epc_put(). EPC device refcounting is tied to the configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.",
  "published": "2026-04-24T15:16:37Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00123,
  "epssPercentile": 0.02034,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31594",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.176-1",
      "fix": "DEBIAN-CVE-2026-31594",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31594",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.85-1",
      "fix": "DEBIAN-CVE-2026-31594",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31594",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.14-1",
      "fix": "DEBIAN-CVE-2026-31594",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-31594",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}