[compiler-rt] 3cf9bf3 - [HWASAN] Enable memcpy and memmove interceptors (#71217)
via llvm-commits
llvm-commits at lists.llvm.org
Fri Nov 3 14:17:50 PDT 2023
Author: Kirill Stoimenov
Date: 2023-11-03T14:17:45-07:00
New Revision: 3cf9bf343de5fbc0b755572c60e8ed53628ff614
URL: https://github.com/llvm/llvm-project/commit/3cf9bf343de5fbc0b755572c60e8ed53628ff614
DIFF: https://github.com/llvm/llvm-project/commit/3cf9bf343de5fbc0b755572c60e8ed53628ff614.diff
LOG: [HWASAN] Enable memcpy and memmove interceptors (#71217)
Added:
compiler-rt/test/hwasan/TestCases/memcpy.cpp
compiler-rt/test/hwasan/TestCases/memmove.cpp
Modified:
compiler-rt/lib/hwasan/hwasan_interceptors.cpp
compiler-rt/lib/hwasan/hwasan_platform_interceptors.h
Removed:
################################################################################
diff --git a/compiler-rt/lib/hwasan/hwasan_interceptors.cpp b/compiler-rt/lib/hwasan/hwasan_interceptors.cpp
index 0889831373a8039..1a77d776e65e4ba 100644
--- a/compiler-rt/lib/hwasan/hwasan_interceptors.cpp
+++ b/compiler-rt/lib/hwasan/hwasan_interceptors.cpp
@@ -90,8 +90,7 @@ struct HWAsanInterceptorContext {
# include "sanitizer_common/sanitizer_syscalls_netbsd.inc"
# define COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, size) \
- do { \
- } while (false)
+ HWASAN_WRITE_RANGE(ctx, ptr, size)
# define COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, size) \
HWASAN_READ_RANGE(ctx, ptr, size)
@@ -147,22 +146,6 @@ struct HWAsanInterceptorContext {
(void)(name); \
} while (false)
-# define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size) \
- do { \
- (void)(ctx); \
- (void)(to); \
- (void)(from); \
- (void)(size); \
- } while (false)
-
-# define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size) \
- do { \
- (void)(ctx); \
- (void)(to); \
- (void)(from); \
- (void)(size); \
- } while (false)
-
# define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size) \
do { \
(void)(ctx); \
diff --git a/compiler-rt/lib/hwasan/hwasan_platform_interceptors.h b/compiler-rt/lib/hwasan/hwasan_platform_interceptors.h
index 86d26b5ac12d4a7..e31ee9e406c67e3 100644
--- a/compiler-rt/lib/hwasan/hwasan_platform_interceptors.h
+++ b/compiler-rt/lib/hwasan/hwasan_platform_interceptors.h
@@ -59,11 +59,11 @@
#undef SANITIZER_INTERCEPT_MEMSET
#define SANITIZER_INTERCEPT_MEMSET 0
-#undef SANITIZER_INTERCEPT_MEMMOVE
-#define SANITIZER_INTERCEPT_MEMMOVE 0
+// #undef SANITIZER_INTERCEPT_MEMMOVE
+// #define SANITIZER_INTERCEPT_MEMMOVE 0
-#undef SANITIZER_INTERCEPT_MEMCPY
-#define SANITIZER_INTERCEPT_MEMCPY 0
+// #undef SANITIZER_INTERCEPT_MEMCPY
+// #define SANITIZER_INTERCEPT_MEMCPY 0
// #undef SANITIZER_INTERCEPT_MEMCMP
// #define SANITIZER_INTERCEPT_MEMCMP 0
diff --git a/compiler-rt/test/hwasan/TestCases/memcpy.cpp b/compiler-rt/test/hwasan/TestCases/memcpy.cpp
new file mode 100644
index 000000000000000..830449488fec49d
--- /dev/null
+++ b/compiler-rt/test/hwasan/TestCases/memcpy.cpp
@@ -0,0 +1,32 @@
+// RUN: %clangxx_hwasan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_hwasan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
+
+#include <sanitizer/hwasan_interface.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+__attribute__((no_sanitize("hwaddress"))) void
+ForceCallInterceptor(void *p, const void *a, size_t size) {
+ memcpy(p, a, size);
+}
+
+int main(int argc, char **argv) {
+ __hwasan_enable_allocator_tagging();
+ char a[] = {static_cast<char>(argc), 2, 3, 4};
+ int size = sizeof(a);
+ char *volatile p = (char *)malloc(size);
+ free(p);
+ ForceCallInterceptor(p, a, size);
+ return 0;
+ // CHECK: HWAddressSanitizer: tag-mismatch on address
+ // CHECK: WRITE of size 4
+ // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcpy.cpp:[[@LINE-4]]
+ // CHECK: Cause: use-after-free
+ // CHECK: freed by thread
+ // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcpy.cpp:[[@LINE-8]]
+ // CHECK: previously allocated by thread
+ // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcpy.cpp:[[@LINE-11]]
+}
diff --git a/compiler-rt/test/hwasan/TestCases/memmove.cpp b/compiler-rt/test/hwasan/TestCases/memmove.cpp
new file mode 100644
index 000000000000000..40dc3deeb393507
--- /dev/null
+++ b/compiler-rt/test/hwasan/TestCases/memmove.cpp
@@ -0,0 +1,32 @@
+// RUN: %clangxx_hwasan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_hwasan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
+
+#include <sanitizer/hwasan_interface.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+__attribute__((no_sanitize("hwaddress"))) void
+ForceCallInterceptor(void *p, const void *a, size_t size) {
+ memmove(p, a, size);
+}
+
+int main(int argc, char **argv) {
+ __hwasan_enable_allocator_tagging();
+ char a[] = {static_cast<char>(argc), 2, 3, 4};
+ int size = sizeof(a);
+ char *volatile p = (char *)malloc(size);
+ free(p);
+ ForceCallInterceptor(p, a, size);
+ return 0;
+ // CHECK: HWAddressSanitizer: tag-mismatch on address
+ // CHECK: WRITE of size 4
+ // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memmove.cpp:[[@LINE-4]]
+ // CHECK: Cause: use-after-free
+ // CHECK: freed by thread
+ // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memmove.cpp:[[@LINE-8]]
+ // CHECK: previously allocated by thread
+ // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memmove.cpp:[[@LINE-11]]
+}
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