CVE:CVE-2006-4342
CNNVD:CNNVD-200610-266
Red Hat Enterprise Linux 3运行于SMP系统中时，本地用户可以运行shm中的shmat函数，shmctl在删除该shm(IPC_RMID)来引起拒绝服务(死锁)攻击，从而防止spinlock被解锁。
solution:Upgrade redhat enterprise_linux to a higher version than 3.0,and avoid the version 3.0