| 1 | |
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| 2 | void test() { |
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| 3 | int *p = malloc(1); |
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| 4 | free(p); |
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| 5 | free(p); // warn: attempt to free released memory |
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| 6 | } |
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| 7 | |
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| 8 | void test() { |
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| 9 | int *p = malloc(sizeof(int)); |
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| 10 | free(p); |
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| 11 | *p = 1; // warn: use after free |
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| 12 | } |
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| 13 | |
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| 14 | void test() { |
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| 15 | int *p = malloc(1); |
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| 16 | if (p) |
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| 17 | return; // warn: memory is never released |
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| 18 | } |
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| 19 | |
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| 20 | void test() { |
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| 21 | int a[] = { 1 }; |
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| 22 | free(a); // warn: argument is not allocated by malloc |
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| 23 | } |
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| 24 | |
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| 25 | void test() { |
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| 26 | int *p = malloc(sizeof(char)); |
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| 27 | p = p - 1; |
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| 28 | free(p); // warn: argument to free() is offset by -4 bytes |
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| 29 | } |
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| 30 | |
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| 31 | |
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