What’s your WAF policy mode set to right now? It takes about thirty seconds to check, and the answer might surprise you.
if score < min_score {
，推荐阅读新收录的资料获取更多信息
The latter is the more interesting test — it writes a 0xcc byte (the x86-64 software breakpoint instruction) which will cause the kernel to deliver a SIGTRAP to our process if executed. This is literally changing the executable code of libc. So the next time we call getchar, if we get a SIGTRAP, we know that the write has succeeded.
The earbuds are robust too, rated IPX4 for sweat and water resistance so they're a great choice for a sweaty workout or rainy walk.