GHSA-7JP2-WQVR-VW2W
Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-28 09:31In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: Fix oops due to out of scope access
Below oops triggers when kill QEMU process:
Oops: general protection fault, probably for non-canonical address 0x7fffffff844eaaa7: 0000 [#1] SMP NOPTI Call Trace: do_raw_spin_lock+0xaa/0xc0 _raw_spin_lock_irqsave+0x21/0x40 domain_remove_dev_pasid+0x52/0x160 intel_nested_set_dev_pasid+0x1b9/0x1e0 __iommu_set_group_pasid+0x56/0x120 pci_dev_reset_iommu_done+0xe3/0x180 pcie_flr+0x65/0x160 __pci_reset_function_locked+0x5b/0x120 vfio_pci_core_close_device+0x63/0xe0 [vfio_pci_core] vfio_df_close+0x4f/0xa0 vfio_df_unbind_iommufd+0x2d/0x60 vfio_device_fops_release+0x3e/0x40 __fput+0xe5/0x2c0 task_work_run+0x58/0xa0 do_exit+0x2c8/0x600 do_group_exit+0x2f/0xa0 get_signal+0x863/0x8c0 arch_do_signal_or_restart+0x24/0x100 exit_to_user_mode_loop+0x87/0x380 do_syscall_64+0x2ff/0x11e0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
The global static blocked domain is a dummy domain without corresponding dmar_domain structure, accessing beyond iommu_domain structure triggers oops easily. Fix it by return early in domain_remove_dev_pasid() like identity domain.
{
"affected": [],
"aliases": [
"CVE-2026-52953"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-24T17:17:05Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix oops due to out of scope access\n\nBelow oops triggers when kill QEMU process:\n\n Oops: general protection fault, probably for non-canonical address 0x7fffffff844eaaa7: 0000 [#1] SMP NOPTI\n Call Trace:\n \u003cTASK\u003e\n do_raw_spin_lock+0xaa/0xc0\n _raw_spin_lock_irqsave+0x21/0x40\n domain_remove_dev_pasid+0x52/0x160\n intel_nested_set_dev_pasid+0x1b9/0x1e0\n __iommu_set_group_pasid+0x56/0x120\n pci_dev_reset_iommu_done+0xe3/0x180\n pcie_flr+0x65/0x160\n __pci_reset_function_locked+0x5b/0x120\n vfio_pci_core_close_device+0x63/0xe0 [vfio_pci_core]\n vfio_df_close+0x4f/0xa0\n vfio_df_unbind_iommufd+0x2d/0x60\n vfio_device_fops_release+0x3e/0x40\n __fput+0xe5/0x2c0\n task_work_run+0x58/0xa0\n do_exit+0x2c8/0x600\n do_group_exit+0x2f/0xa0\n get_signal+0x863/0x8c0\n arch_do_signal_or_restart+0x24/0x100\n exit_to_user_mode_loop+0x87/0x380\n do_syscall_64+0x2ff/0x11e0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe global static blocked domain is a dummy domain without corresponding\ndmar_domain structure, accessing beyond iommu_domain structure triggers\noops easily. Fix it by return early in domain_remove_dev_pasid() like\nidentity domain.",
"id": "GHSA-7jp2-wqvr-vw2w",
"modified": "2026-06-28T09:31:37Z",
"published": "2026-06-24T18:32:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52953"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1e659db468476733d217c1314c1e0d9244356d6c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/88397fad7914ee74a7880fa5ce01f9eb6bfe0743"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a6dea58d8625c06b9654c0555f101742481335c3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.