| #include <string.h> |
| #include <stdlib.h> |
| int main(int argc, char **argv) { |
| char *hello = (char*)malloc(6); |
| strcpy(hello, "hello"); |
| char *short_buffer = (char*)malloc(9); |
| strncpy(short_buffer, hello, 10); // BOOM |
| return short_buffer[8]; |
| } |
| |
| // Check-Common: {{WRITE of size 1 at 0x.* thread T0}} |
| // Check-Linux: {{ #0 0x.* in __xsan_strncpy}} |
| // Check-Darwin: {{ #0 0x.* in wrap_strncpy}} |
| // Check-Common: {{ #1 0x.* in main .*strncpy-overflow.cc:[78]}} |
| // Check-Common: {{0x.* is located 0 bytes to the right of 9-byte region}} |
| // Check-Common: {{allocated by thread T0 here:}} |
| |
| // Check-Linux: {{ #0 0x.* in __xsan_malloc}} |
| // Check-Linux: {{ #1 0x.* in main .*strncpy-overflow.cc:6}} |
| |
| // Check-Darwin: {{ #0 0x.* in .*mz_malloc.*}} |
| // Check-Darwin: {{ #1 0x.* in malloc_zone_malloc.*}} |
| // Check-Darwin: {{ #2 0x.* in malloc.*}} |
| // Check-Darwin: {{ #3 0x.* in main .*strncpy-overflow.cc:6}} |