{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e2b6ef72b7aea9d7d480d2df499bcd1c93247abb"
            },
            {
              "fixed": "305a0674bc552bfcc3231e23fb91cf4f62aec168"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "e35f56bb03304abc92c928b641af41ca372966bb"
            },
            {
              "fixed": "b261027a1a235d8925e332363f23135a0eff2b35"
            },
            {
              "fixed": "e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2"
            },
            {
              "fixed": "73bf218de28d039126dc64281d2b47dd3c46a0a3"
            },
            {
              "fixed": "cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a"
            },
            {
              "fixed": "478e776101592eb63298714e96823ef78a3295ec"
            },
            {
              "fixed": "a7a3cab4d33fd8a8aed864c447d0d7c99e85404e"
            },
            {
              "fixed": "0da63230d3ec1ec5fcc443a2314233e95bfece54"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.15.153"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.6.136"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.12.84"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.18.24"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.19.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31594.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown\n\nepf_ntb_epc_destroy() duplicates the teardown that the caller is\nsupposed to perform later. This leads to an oops when .allow_link fails\nor when .drop_link is performed. The following is an example oops of the\nformer case:\n\n  Unable to handle kernel paging request at virtual address dead000000000108\n  [...]\n  [dead000000000108] address between user and kernel address ranges\n  Internal error: Oops: 0000000096000044 [#1]  SMP\n  [...]\n  Call trace:\n   pci_epc_remove_epf+0x78/0xe0 (P)\n   pci_primary_epc_epf_link+0x88/0xa8\n   configfs_symlink+0x1f4/0x5a0\n   vfs_symlink+0x134/0x1d8\n   do_symlinkat+0x88/0x138\n   __arm64_sys_symlinkat+0x74/0xe0\n  [...]\n\nRemove the helper, and drop pci_epc_put(). EPC device refcounting is\ntied to the configfs EPC group lifetime, and pci_epc_put() in the\n.drop_link path is sufficient.",
  "id": "CVE-2026-31594",
  "modified": "2026-08-12T03:51:13.129570901Z",
  "published": "2026-04-24T14:42:20.556Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0da63230d3ec1ec5fcc443a2314233e95bfece54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/305a0674bc552bfcc3231e23fb91cf4f62aec168"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/478e776101592eb63298714e96823ef78a3295ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73bf218de28d039126dc64281d2b47dd3c46a0a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7a3cab4d33fd8a8aed864c447d0d7c99e85404e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b261027a1a235d8925e332363f23135a0eff2b35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31594.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31594"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown"
}