Stack Smashing Protector - OSDev Wiki

/* Note how buffer overruns are undefined behavior and the compilers tend to optimize these checks away if you wrote them yourself, this only works robustly because the compiler did it itself. */ extern uintptr_t __stack_chk_guard; noreturn void __stack_chk_fail(void); void foo(const char* str) { uintptr_t canary = __stack_chk_guard; char buffer[16]; strcpy(buffer, str); if ( (canary = canary ^ __

[masterq]

__stack_chk_failがどうやって呼ばれるかはわかった。しかし、、しかしこれがkernelの中で、しかもサスペンド復帰の時にかぎって稀に起きて、かつ発生箇所が一意でないのはメモリ化け以外に考えられない