{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8"
            },
            {
              "fixed": "baa42b756d183a59572f3890981a3d32b8d05d40"
            },
            {
              "fixed": "51b7181cfbedf289ce794b6d97a1c596c309ec38"
            },
            {
              "fixed": "e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"
            },
            {
              "fixed": "a1f4dc72efc3204db95d052058d785cad7ce755f"
            },
            {
              "fixed": "6220694c52a5a04102b48109e4f24e958b559bd3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45880.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails\n\nWhen vm_insert_page() fails in p2pmem_alloc_mmap(), p2pmem_alloc_mmap()\ndoesn't invoke percpu_ref_put() to free the per-CPU ref of pgmap acquired\nafter gen_pool_alloc_owner(), and memunmap_pages() will hang forever when\ntrying to remove the PCI device.\n\nFix it by adding the missed percpu_ref_put().",
  "id": "CVE-2026-45880",
  "modified": "2026-07-08T05:37:27.063471822Z",
  "published": "2026-05-27T12:16:52.117Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45880.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45880"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails"
}