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
习近平总书记意味深长地说：“每个时代都要做出每个时代的事情来。做得好、做得坏，贡献大、贡献小，青史可鉴啊！共产党人一定要为人民做好事。”
，更多细节参见搜狗输入法2026
第十五条 醉酒的人违反治安管理的，应当给予处罚。
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