32 lines
1.2 KiB
C++
32 lines
1.2 KiB
C++
// RUN: %clangxx_hwasan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_hwasan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
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#include <sanitizer/hwasan_interface.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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__attribute__((no_sanitize("hwaddress"))) void
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ForceCallInterceptor(void *p, const void *a, size_t size) {
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memcpy(p, a, size);
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}
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int main(int argc, char **argv) {
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__hwasan_enable_allocator_tagging();
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char a[] = {static_cast<char>(argc), 2, 3, 4};
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int size = sizeof(a);
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char *volatile p = (char *)malloc(size);
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free(p);
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ForceCallInterceptor(p, a, size);
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return 0;
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// CHECK: HWAddressSanitizer: tag-mismatch on address
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// CHECK: WRITE of size 4
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// CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcpy.cpp:[[@LINE-4]]
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// CHECK: Cause: use-after-free
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// CHECK: freed by thread
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// CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcpy.cpp:[[@LINE-8]]
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// CHECK: previously allocated by thread
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// CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcpy.cpp:[[@LINE-11]]
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}
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