forked from OSchip/llvm-project
28 lines
953 B
C++
28 lines
953 B
C++
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// RUN: %clangxx_asan -O0 %p/dll_host.cc -Fe%t
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// RUN: %clangxx_asan -LD -O0 %s -Fe%t.dll
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// FIXME: 'cat' is needed due to PR19744.
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// RUN: not %run %t %t.dll 2>&1 | cat | FileCheck %s
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#include <malloc.h>
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extern "C" __declspec(dllexport)
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int test_function() {
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char *buffer = (char*)malloc(42);
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free(buffer);
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buffer[0] = 42;
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// CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]]
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// CHECK: WRITE of size 1 at [[ADDR]] thread T0
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// CHECK: test_function {{.*}}dll_malloc_uaf.cc:[[@LINE-3]]
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// CHECK: main {{.*}}dll_host
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// CHECK: [[ADDR]] is located 0 bytes inside of 42-byte region
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// CHECK-LABEL: freed by thread T0 here:
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// CHECK: free
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// CHECK: test_function {{.*}}dll_malloc_uaf.cc:[[@LINE-9]]
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// CHECK: main {{.*}}dll_host
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// CHECK-LABEL: previously allocated by thread T0 here:
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// CHECK: malloc
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// CHECK: test_function {{.*}}dll_malloc_uaf.cc:[[@LINE-14]]
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// CHECK: main {{.*}}dll_host
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return 0;
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}
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