Kali HaysTechnology reporter
The key is the test TST_SEL_RET on line 682. It compares the RPL of the return CS selector (saved on the stack by the original CALL) against the current CPL. If RPL == CPL, the PLA returns 0x000 (continue) and LD_DESCRIPTOR finishes normally -- same-privilege return. If RPL CPL, the caller is returning to a less-privileged ring, so the PLA redirects to 0x686 (RETF_OUTER_LEV) -- the cross-privilege path that must also restore the caller's stack. If RPL
,这一点在51吃瓜中也有详细论述
When it comes to chili, it doesn't get any bigger than Wendy's. This famous chili has something of a cult following. If you're a fan, you're probably well aware of National Chili Day and how Wendy's is planning to celebrate. If you're not fully up to speed just yet, you should know that you can grab a small portion of Wendy’s iconic chili on this special day. Here's how to qualify:
荣耀经验能否助力“千里腾飞”?