Comments (1)
WinMin
commented on May 26, 2024
在SROP技术中 讲得非常详细 但是有一点内容有所纰漏
signal 机制第3点: signal handler 返回后，内核为执行 sigreturn 系统调用，为该进程恢复之前保存的上下文，其中包括将所有压入的寄存器，重新 pop 回对应的寄存器，最后恢复进程的执行。其中，32 位的 sigreturn 的调用号为 77，64 位的系统调用号为 15。
这里 32位的sigreturn调用号应该是0x77(119) , 64 位的系统调用号为 15(0xf) 还请完善下
内容参考 https://www.slideshare.net/AngelBoy1/sigreturn-ori PPT第11页
感谢， 已经修正： fix
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