iommu/vt-d: Fix NULL domain on device release

{
  "id": "a34cd0ec14ef7a24f5564ce594350f314b6213b955a02f33d5ac981a0a15a470",
  "url": "https://osv.dev/vulnerability/CVE-2024-27079",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iommu/vt-d: Fix NULL domain on device release",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix NULL domain on device release In the kdump kernel, the IOMMU operates in deferred_attach mode. In this mode, info->domain may not yet be assigned by the time the release_device function is called. It leads to the following crash in the crash kernel: BUG: kernel NULL pointer dereference, address: 000000000000003c ... RIP: 0010:do_raw_spin_lock+0xa/0xa0 ... _raw_spin_lock_irqsave+0x1b/0x30 intel_iommu_release_device+0x96/0x170 iommu_deinit_device+0x39/0xf0 __iommu_group_remove_device+0xa0/0xd0 iommu_bus_notifier+0x55/0xb0 notifier_call_chain+0x5a/0xd0 blocking_notifier_call_chain+0x41/0x60 bus_notify+0x34/0x50 device_del+0x269/0x3d0 pci_remove_bus_device+0x77/0x100 p2sb_bar+0xae/0x1d0 ... i801_probe+0x423/0x740 Use the release_domain mechanism to fix it. The scalable mode context entry which is not part of release domain should be cleared in release_device().",
    "evidence": "osv:CVE-2024-27079",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.8.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-27079",
      "aliases": [
        "CVE-2024-27079"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "586081d3f6b13ec9dfdfdf3d7842a688b376fa5e"
                },
                {
                  "fixed": "333fe86968482ca701c609af590003bcea450e8f"
                },
                {
                  "fixed": "81e921fd321614c2ad8ac333b041aae1da7a1c6d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27079.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "6.8.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27079.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.951484331Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f",
        "https://git.kernel.org/stable/c/81e921fd321614c2ad8ac333b041aae1da7a1c6d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27079.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-27079",
        "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/2024/27xxx/CVE-2024-27079.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-27079",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 521514,
  "published_at": "2024-05-01T13:04:58.511+00:00"
}