CVE-2026-16280 GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset

An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in...

CVE-2026-16280

CVE-2026-16280 affects GPU DDK, specifically the PMRLogicalOffsetToPhysicalOffset function. An integer overflow for PMRs larger than 4 GB causes 32-bit truncation of address computations, leading to incorrect GPU MMU mappings. This can enable a non-privileged user to access unintended physical me...