=> 0x7f3f72a21c67 : mov 0x108(%rsp),%rcx 0x7f3f72a21c6f : xor %fs:0x28,%rcx 0x7f3f72a21c78 : mov %r8d,%eax 0x7f3f72a21c7b : jne 0x7f3f72a21c9c 0x7f3f72a21c7d : add $0x118,%rsp 0x7f3f72a21c84 : retq 0x7f3f72a21c85 : nopl (%rax) 0x7f3f72a21c88 : mov 0x9309(%rip),%rdx # 0x7f3f72a2af98 0x7f3f72a21c8f : neg %eax 0x7f3f72a21c91 : mov $0xffffffff,%r8d 0x7f3f72a21c97 : mov %eax,%fs:(%rdx) 0x7f3f72a21c9a : jmp 0x7f3f72a21c50 0x7f3f72a21c9c : callq 0x7f3f72a15160 <__stack_chk_fail@plt> 0x7f3f72a21ca1: nopw %cs:0x0(%rax,%rax,1) 0x7f3f72a21cab: nopl 0x0(%rax,%rax,1) 0x7f3f72a21cb0 : jmpq 0x7f3f72a15170 <__libc_system@plt>