Fix (speculative) nullptr arithmetic

PiperOrigin-RevId: 721739274
google · Jan 31, 2025 · a1e3ab2 · a1e3ab2
1 parent 28b1183
commit a1e3ab2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/c/dec/state.c b/c/dec/state.c
@@ -180,7 +180,7 @@ BROTLI_BOOL BrotliDecoderHuffmanTreeGroupInit(BrotliDecoderState* s,
   group->alphabet_size_limit = (uint16_t)alphabet_size_limit;
   group->num_htrees = (uint16_t)ntrees;
   group->htrees = p;
-  group->codes = (HuffmanCode*)(&p[ntrees]);
+  group->codes = p ? (HuffmanCode*)(&p[ntrees]) : NULL;
   return !!p;
 }