ghsa-gwcp-9x74-j757
Vulnerability from github
Published
2024-05-01 15:30
Modified
2024-05-01 15:30
Details
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().
{
"affected": [],
"aliases": [
"CVE-2024-27079"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-01T13:15:51Z",
"severity": null
},
"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().",
"id": "GHSA-gwcp-9x74-j757",
"modified": "2024-05-01T15:30:37Z",
"published": "2024-05-01T15:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27079"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/81e921fd321614c2ad8ac333b041aae1da7a1c6d"
}
],
"schema_version": "1.4.0",
"severity": []
}
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