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-rw-r--r--include/afl-as.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/afl-as.h b/include/afl-as.h
index bd5e734a..de9fb646 100644
--- a/include/afl-as.h
+++ b/include/afl-as.h
@@ -261,6 +261,7 @@ static const u8* main_payload_32 =
   "  je   __afl_setup_abort\n"
   "\n"
 #endif
+  "  movb $1, (%eax)\n"
   "  /* Store the address of the SHM region. */\n"
   "\n"
   "  movl %eax, __afl_area_ptr\n"
@@ -563,6 +564,7 @@ static const u8* main_payload_64 =
   "  je   __afl_setup_abort\n"
   "\n"
 #endif
+  "  movb $1, (%rax)\n"
   "  /* Store the address of the SHM region. */\n"
   "\n"
   "  movq %rax, %rdx\n"