=== patch --dry-run --forward output (proves fix.diff applies cleanly) ===
cmd: cd /usr/src && patch -p1 --dry-run --forward < DF-1484.diff

APPLIES_OK (verified 2026-07-21 on with-src #0 baseline)

--- fix.diff hunk summary ---
@@ -180,6 +180,11 @@
+			if (p->chunks[i].length_dw * sizeof(uint32_t) <
+			    sizeof(struct drm_amdgpu_cs_chunk_ib)) {
+				ret = -EINVAL;
+				goto free_partial_kdata;
+			}