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Figure 1 is an example of a JOP attack. In this example, the attacker's aim is to execute a system call "int 0x80" to open a new command line window. To do this, an attacker needs to modify the contents of the eax register to "0x0000000b" and the ebx register to the string "/bin/sh" before "int 0x80" is called, and the ecx and edx registers must point to the value "0x00000000". Suppose the value "0x0000000" and the string "/bin/sh" can be found in memory when the program is running. An attacker needs to construct the value "0x0000000b" himself. However, for the value "0x0000000b", when an attacker saves data to the stack through a buffer overflow, the "0x00" byte will trigger the system to terminate the read operation. This example specifically describes how the attacker uses the existing code snippet in the program to modify the value of val pushed into the stack by the attacker step by step from "0xffffff0b" to the value required by the system call "0x0000000b", thus implementing JOP attack. The following are the detailed steps of the process.王勇小心翼翼的把书签夹到《武侠世界》中，仔细收好了这本杂志。以现代日本女性感受到的“生活难”与“焦躁感”，还要面对“什么是生活？、什么是人生的幸福？”为主题，描述4位神秘色彩女性的惊险而浪漫的故事。　　两个女孩 一段跨海的人生体验课有一天，丁洋看到一个漂亮而又安静的女孩。　　在20世纪30年代的德州，政府依旧沿用着自19世纪70年代开始制定的对黑人实行种族隔离或种族歧视的法律——黑人被剥夺选举权，并在学校、住区、公共交通、公共场所以及就业、司法、军役、婚姻等各方面，受到残酷的隔离和歧视。马文·托尔森作为一名有知识有头脑的黑人非常希望通过自己的屠狮英雄大会结束，周芷若是大赢家。