CVE-2026-46220

CVE-2026-46220 affects the Linux kernel’s drm/amdgpu sdma4 fence emission. The vulnerability stems from two BUG_ON(addr & 0x3) assertions in sdma_v4_0_ring_emit_fence(), which could be triggered by unprivileged userspace submissions via DRM_IOCTL_AMDGPU_CS, causing a kernel panic in a scheduler w...