cve 2024 35843

CVE-2024-35843 is a Linux kernel vulnerability in the Intel VT-d IOMMU driver that involves a race condition and use-after-free in the I/O page-fault (IOPF) reporting path. The issue can be triggered during device teardown, potentially leading to kernel instability or denial-of-service. A patch addressing CVE-2024-35843 switches to a rbtree lookup for probed devices and introduces a synchronization mutex to correct the fragile device-lookup sequence. This fix is relevant for systems using Intel VT-d IOMMU, particularly in enterprise and virtualization environments where I/O virtualization is critical.