| 1 | // RUN: %clangxx_asan -O0 %s -o %t |
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| 2 | // RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=MALLOC-CTX |
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| 3 | |
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| 4 | // Also works if no malloc context is available. |
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| 5 | // RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s |
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| 6 | // RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s |
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| 7 | // REQUIRES: stable-runtime |
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| 8 | |
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| 9 | #include <stdlib.h> |
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| 10 | #include <string.h> |
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| 11 | int main(int argc, char **argv) { |
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| 12 | char *x = (char*)malloc(size: 10 * sizeof(char)); |
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| 13 | memset(s: x, c: 0, n: 10); |
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| 14 | int res = x[argc]; |
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| 15 | free(ptr: x + 5); // BOOM |
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| 16 | // CHECK: AddressSanitizer: attempting free on address{{.*}}in thread T0 |
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| 17 | // CHECK: invalid-free.cpp:[[@LINE-2]] |
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| 18 | // CHECK: is located 5 bytes inside of 10-byte region |
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| 19 | // CHECK: allocated by thread T0 here: |
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| 20 | // MALLOC-CTX: invalid-free.cpp:[[@LINE-8]] |
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| 21 | return res; |
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| 22 | } |
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| 23 | |
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