{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22"
            },
            {
              "fixed": "c0cd65906e5f7e293ef2568c9524cc0a918333c3"
            },
            {
              "fixed": "7cbb8f2750d91e64caff89e164ac8280bb80bedc"
            },
            {
              "fixed": "a8759c8ac48c0419f5899e95a6ffc611b07c965b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.3.0"
            },
            {
              "fixed": "6.12.111"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93821.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: altera: Protect root bus removal with rescan lock\n\nHold the pci_rescan_remove_lock lock while stopping and removing a root bus\nto avoid racing with concurrent rescan or hotplug operations triggered via\nsysfs.  Such races may lead to use-after-free issues or system crashes.\n\n[bhelgaas: commit log]",
  "id": "CVE-2026-93821",
  "modified": "2026-09-27T03:30:13.129521867Z",
  "published": "2026-09-24T16:02:59.826Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7cbb8f2750d91e64caff89e164ac8280bb80bedc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8759c8ac48c0419f5899e95a6ffc611b07c965b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0cd65906e5f7e293ef2568c9524cc0a918333c3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93821.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93821"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "PCI: altera: Protect root bus removal with rescan lock"
}