Index: test/asan/TestCases/strcasestr-1.c
===================================================================
--- test/asan/TestCases/strcasestr-1.c
+++ test/asan/TestCases/strcasestr-1.c
@@ -2,7 +2,8 @@
 // RUN: %clang_asan %s -o %t && ASAN_OPTIONS=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
 
 // Test intercept_strstr asan option
-// RUN: ASAN_OPTIONS=intercept_strstr=false %run %t 2>&1
+// Disable other interceptors because strlen may be called inside strcasestr
+// RUN: ASAN_OPTIONS=intercept_strstr=false:replace_str=false %run %t 2>&1
 
 // There's no interceptor for strcasestr on Windows
 // XFAIL: win32
Index: test/asan/TestCases/strcasestr-2.c
===================================================================
--- test/asan/TestCases/strcasestr-2.c
+++ test/asan/TestCases/strcasestr-2.c
@@ -2,7 +2,8 @@
 // RUN: %clang_asan %s -o %t && ASAN_OPTIONS=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
 
 // Test intercept_strstr asan option
-// RUN: ASAN_OPTIONS=intercept_strstr=false %run %t 2>&1
+// Disable other interceptors because strlen may be called inside strcasestr
+// RUN: ASAN_OPTIONS=intercept_strstr=false:replace_str=false %run %t 2>&1
 
 // There's no interceptor for strcasestr on Windows
 // XFAIL: win32
Index: test/asan/TestCases/strstr-1.c
===================================================================
--- test/asan/TestCases/strstr-1.c
+++ test/asan/TestCases/strstr-1.c
@@ -2,7 +2,8 @@
 // RUN: %clang_asan %s -o %t && ASAN_OPTIONS=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
 
 // Test intercept_strstr asan option
-// RUN: ASAN_OPTIONS=intercept_strstr=false %run %t 2>&1
+// Disable other interceptors because strlen may be called inside strstr
+// RUN: ASAN_OPTIONS=intercept_strstr=false:replace_str=false %run %t 2>&1
 
 #include <assert.h>
 #include <string.h>
Index: test/asan/TestCases/strstr-2.c
===================================================================
--- test/asan/TestCases/strstr-2.c
+++ test/asan/TestCases/strstr-2.c
@@ -2,7 +2,8 @@
 // RUN: %clang_asan %s -o %t && ASAN_OPTIONS=strict_string_checks=true not %run %t 2>&1 | FileCheck %s
 
 // Test intercept_strstr asan option
-// RUN: ASAN_OPTIONS=intercept_strstr=false %run %t 2>&1
+// Disable other interceptors because strlen may be called inside strstr
+// RUN: ASAN_OPTIONS=intercept_strstr=false:replace_str=false %run %t 2>&1
 
 #include <assert.h>
 #include <string.h>