CVE-2026-52953

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iommu/vt-d: Fix oops due to out of scope access<br /> <br /> Below oops triggers when kill QEMU process:<br /> <br /> Oops: general protection fault, probably for non-canonical address 0x7fffffff844eaaa7: 0000 [#1] SMP NOPTI<br /> Call Trace:<br /> <br /> do_raw_spin_lock+0xaa/0xc0<br /> _raw_spin_lock_irqsave+0x21/0x40<br /> domain_remove_dev_pasid+0x52/0x160<br /> intel_nested_set_dev_pasid+0x1b9/0x1e0<br /> __iommu_set_group_pasid+0x56/0x120<br /> pci_dev_reset_iommu_done+0xe3/0x180<br /> pcie_flr+0x65/0x160<br /> __pci_reset_function_locked+0x5b/0x120<br /> vfio_pci_core_close_device+0x63/0xe0 [vfio_pci_core]<br /> vfio_df_close+0x4f/0xa0<br /> vfio_df_unbind_iommufd+0x2d/0x60<br /> vfio_device_fops_release+0x3e/0x40<br /> __fput+0xe5/0x2c0<br /> task_work_run+0x58/0xa0<br /> do_exit+0x2c8/0x600<br /> do_group_exit+0x2f/0xa0<br /> get_signal+0x863/0x8c0<br /> arch_do_signal_or_restart+0x24/0x100<br /> exit_to_user_mode_loop+0x87/0x380<br /> do_syscall_64+0x2ff/0x11e0<br /> entry_SYSCALL_64_after_hwframe+0x76/0x7e<br /> <br /> The global static blocked domain is a dummy domain without corresponding<br /> dmar_domain structure, accessing beyond iommu_domain structure triggers<br /> oops easily. Fix it by return early in domain_remove_dev_pasid() like<br /> identity domain.