27 lines
730 B
C++
27 lines
730 B
C++
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// REQUIRES: gwp_asan
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// RUN: %clangxx_gwp_asan %s -o %t
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// RUN: %expect_crash %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_gwp_asan %s -o %t -DTOUCH_GUARD_PAGE
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// RUN: %expect_crash %run %t 2>&1 | FileCheck %s
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// CHECK: GWP-ASan detected a memory error
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// CHECK: Use After Free
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// CHECK-SAME: warning: buffer overflow/underflow detected on a free()'d allocation
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// CHECK-SAME: at 0x{{[a-f0-9]+}} ({{[0-9]+}} byte{{s?}} to the right
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#include <cstdlib>
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#include "page_size.h"
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int main() {
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unsigned malloc_size = 1;
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#ifdef TOUCH_GUARD_PAGE
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malloc_size = pageSize();
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#endif // TOUCH_GUARD_PAGE
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char *Ptr = reinterpret_cast<char *>(malloc(malloc_size));
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free(Ptr);
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volatile char x = *(Ptr + malloc_size);
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return 0;
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}
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