CVE-2026-52953
Full vulnerability record from the local CVENow database.
Description
In 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: <TASK> 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.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-06-24 17:17:05.430000
Last modified
2026-10-19 20:18:50.197000
View original CVE JSON
{
"id": "CVE-2026-52953",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-06-24T17:17:05.430",
"lastModified": "2026-10-19T20:18:50.197",
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"value": "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 <TASK>\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."
}
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"privilegesRequired": "LOW",
"userInteraction": "NONE",
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