diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
@@ -607,8 +607,15 @@
   if (&__libc_stack_end) {
 #endif // !SANITIZER_GO
     uptr* stack_end = (uptr*)__libc_stack_end;
-    int argc = *stack_end;
     *argv = (char**)(stack_end + 1);
+    // Normally argc can be obtained from *__libc_stack_end, however, on ARM
+    // glibc's _start clobbers it:
+    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/arm/start.S;hb=refs/heads/release/2.31/master#l75
+    // Do not special-case ARM, but rather use a common solution everywhere:
+    // infer argc from argv.
+    int argc = 0;
+    while (stack_end[argc + 1])
+      argc++;
     *envp = (char**)(stack_end + argc + 2);
 #if !SANITIZER_GO
   } else {