diff --git a/infra/base-images/base-builder/Dockerfile b/infra/base-images/base-builder/Dockerfile
index 9868b8c01133..13f663bfcc2f 100644
--- a/infra/base-images/base-builder/Dockerfile
+++ b/infra/base-images/base-builder/Dockerfile
@@ -20,7 +20,7 @@ RUN apt-get install -y git subversion jq python3 zip
 
 # Default build flags for various sanitizers.
 ENV SANITIZER_FLAGS_address "-fsanitize=address"
-ENV SANITIZER_FLAGS_undefined "-fsanitize=bool,function,signed-integer-overflow,shift,vptr -fno-sanitize-recover=undefined"
+ENV SANITIZER_FLAGS_undefined "-fsanitize=bool,function,signed-integer-overflow,shift,vla-bound,vptr -fno-sanitize-recover=undefined"
 ENV SANITIZER_FLAGS_memory "-fsanitize=memory -fsanitize-memory-track-origins"
 
 # Default build flags for coverage.