vdpa: fix use-after-free on vp_vdpa_remove

{
  "id": "9614348205aa3653922301944438019924cb1841be9c760b9cccd28e37bfb61d",
  "url": "https://osv.dev/vulnerability/CVE-2022-48861",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vdpa: fix use-after-free on vp_vdpa_remove",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: vdpa: fix use-after-free on vp_vdpa_remove When vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device and then vp_vdpa->mdev.pci_dev is dereferenced in vp_modern_remove, triggering use-after-free. Call Trace of unbinding driver free vp_vdpa : do_syscall_64 vfs_write kernfs_fop_write_iter device_release_driver_internal pci_device_remove vp_vdpa_remove vdpa_unregister_device kobject_release device_release kfree Call Trace of dereference vp_vdpa->mdev.pci_dev: vp_modern_remove pci_release_selected_regions pci_release_region pci_resource_len pci_resource_end (dev)->resource[(bar)].end",
    "evidence": "osv:CVE-2022-48861",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.29",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.16.15",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-48861",
      "aliases": [
        "CVE-2022-48861"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "64b9f64f80a6f4b7ea51bf0510119cb15e801dc6"
                },
                {
                  "fixed": "4b1743bc715a3691a63ac21b349079b07bf1b19e"
                },
                {
                  "fixed": "dc54ba9932aeaaa1a21fe214af1f446593a78274"
                },
                {
                  "fixed": "eb057b44dbe35ae14527830236a92f51de8f9184"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48861.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.13.0"
                },
                {
                  "fixed": "5.15.29"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.16.15"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48861.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.497588613Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e",
        "https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274",
        "https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48861.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-48861",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48861.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-48861",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507903,
  "published_at": "2024-07-16T12:25:25.16+00:00"
}