In the Linux kernel, the following vulnerability has been resolved: accel/habanalabs: support mapping cb with vmalloc-backed coherent memory When IOMMU is enabled, dmaalloccoherent() with GFPUSER may return addresses from the vmalloc range. If such an address is mapped without VMMIXEDMAP, vminsertpage() will trigger a BUGON due to the VMPFNMAP restriction. Fix this by checking for vmalloc addresses and setting VM_MIXEDMAP in the VMA before mapping. This ensures safe mapping and avoids kernel crashes. The memory is still driver-allocated and cannot be accessed directly by userspace.