CVE-2026-68111

The CVE-2026-68111 issue affects the Linux kernel's drm/amdgpu/gfx9 path, where a BUG_ON() could crash the kernel. The fix replaces BUG_ON() with WARN_ON(), avoiding a crash in these cases. The change (cherry-picked from commit b71604f8685b0eba07866f4e8dc30f93e1931054) has been included in stable...