{"id":"CVE-2024-27079","summary":"iommu/vt-d: Fix NULL domain on device release","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix NULL domain on device release\n\nIn the kdump kernel, the IOMMU operates in deferred_attach mode. In this\nmode, info-\u003edomain may not yet be assigned by the time the release_device\nfunction is called. It leads to the following crash in the crash kernel:\n\n    BUG: kernel NULL pointer dereference, address: 000000000000003c\n    ...\n    RIP: 0010:do_raw_spin_lock+0xa/0xa0\n    ...\n    _raw_spin_lock_irqsave+0x1b/0x30\n    intel_iommu_release_device+0x96/0x170\n    iommu_deinit_device+0x39/0xf0\n    __iommu_group_remove_device+0xa0/0xd0\n    iommu_bus_notifier+0x55/0xb0\n    notifier_call_chain+0x5a/0xd0\n    blocking_notifier_call_chain+0x41/0x60\n    bus_notify+0x34/0x50\n    device_del+0x269/0x3d0\n    pci_remove_bus_device+0x77/0x100\n    p2sb_bar+0xae/0x1d0\n    ...\n    i801_probe+0x423/0x740\n\nUse the release_domain mechanism to fix it. The scalable mode context\nentry which is not part of release domain should be cleared in\nrelease_device().","modified":"2026-04-02T10:07:09.550628Z","published":"2024-05-01T13:04:58.511Z","related":["SUSE-SU-2024:3190-1","SUSE-SU-2024:3194-1","SUSE-SU-2024:3195-1","SUSE-SU-2024:3209-1","SUSE-SU-2024:3383-1","SUSE-SU-2024:3483-1","SUSE-SU-2025:20044-1","SUSE-SU-2025:20047-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27079.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/81e921fd321614c2ad8ac333b041aae1da7a1c6d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27079.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27079"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"586081d3f6b13ec9dfdfdf3d7842a688b376fa5e"},{"fixed":"333fe86968482ca701c609af590003bcea450e8f"},{"fixed":"81e921fd321614c2ad8ac333b041aae1da7a1c6d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27079.json"}}],"schema_version":"1.7.5"}