{
  "threat_severity" : "Low",
  "public_date" : "2024-05-01T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: iommu/vt-d: Fix NULL domain on device release",
    "id" : "2278492",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2278492"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\niommu/vt-d: Fix NULL domain on device release\nIn the kdump kernel, the IOMMU operates in deferred_attach mode. In this\nmode, info->domain may not yet be assigned by the time the release_device\nfunction is called. It leads to the following crash in the crash kernel:\nBUG: kernel NULL pointer dereference, address: 000000000000003c\n...\nRIP: 0010:do_raw_spin_lock+0xa/0xa0\n...\n_raw_spin_lock_irqsave+0x1b/0x30\nintel_iommu_release_device+0x96/0x170\niommu_deinit_device+0x39/0xf0\n__iommu_group_remove_device+0xa0/0xd0\niommu_bus_notifier+0x55/0xb0\nnotifier_call_chain+0x5a/0xd0\nblocking_notifier_call_chain+0x41/0x60\nbus_notify+0x34/0x50\ndevice_del+0x269/0x3d0\npci_remove_bus_device+0x77/0x100\np2sb_bar+0xae/0x1d0\n...\ni801_probe+0x423/0x740\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().", "In the Linux kernel, the following vulnerability has been resolved:\niommu/vt-d: Fix NULL domain on device release\nThe Linux kernel CVE team has assigned CVE-2024-27079 to this issue.\nUpstream advisory:\nhttps://lore.kernel.org/linux-cve-announce/2024050134-CVE-2024-27079-f478@gregkh/T" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-11-12T00:00:00Z",
    "advisory" : "RHSA-2024:9315",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-503.11.1.el9_5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-11-12T00:00:00Z",
    "advisory" : "RHSA-2024:9315",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-503.11.1.el9_5"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-27079\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-27079\nhttps://lore.kernel.org/linux-cve-announce/2024050134-CVE-2024-27079-f478@gregkh/T" ],
  "name" : "CVE-2024-27079",
  "csaw" : false
}