Index: lib/asan/asan_linux.cc
===================================================================
--- lib/asan/asan_linux.cc
+++ lib/asan/asan_linux.cc
@@ -26,6 +26,7 @@
 #include "sanitizer_common/sanitizer_procmaps.h"
 
 #include <sys/time.h>
+#include <sys/param.h>
 #include <sys/resource.h>
 #include <sys/mman.h>
 #include <sys/syscall.h>
@@ -214,7 +215,7 @@
       // the functions in dynamic ASan runtime instead of the functions in
       // system libraries, causing crashes later in ASan initialization.
       MemoryMappingLayout proc_maps(/*cache_enabled*/true);
-      char filename[128];
+      char filename[MAXPATHLEN];
       MemoryMappedSegment segment(filename, sizeof(filename));
       while (proc_maps.Next(&segment)) {
         if (IsDynamicRTName(segment.filename)) {