The vulnerability of the functions intel_iommu_init() (drivers/iommu/intel/iommu.c) and enable_drhd_fault_handling() (drivers/iommu/intel/dmar.c) in the Linux kernel allows a hacker to trigger a service failure.

The vulnerability of the functions inteliommuinit drivers/iommu/intel/iommu.c and enabledrhdfaulthandling drivers/iommu/intel/dmar.c in the Linux kernel is related to insufficient locking. Exploiting this vulnerability can allow an attacker to cause a service failure...

DEBIAN-CVE-2025-21876

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix suspicious RCU usage Commit "iommu/vt-d: Allocate DMAR fault interrupts locally" moved the call to enabledrhdfaulthandling to a code path that does not hold any lock while traversing the drhd list. Fix it by...