CVE:CVE-2010-3079
CNNVD:CNNVD-201009-296
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。
Linux kernel 2.6.35.5之前版本中的kernel/trace/ftrace.c文件在debugfs启用时，不能正确处理mutex占有和llseek操作之间的交互。本地用户可借助文件描述符连同set_ftrace_filter文件上的lseek调用导致拒绝服务（空指针解引用和中断追踪文件的所有函数）。
solution:Upgrade linux linux_kernel to a higher version than 2.6.35.5,and avoid the version (,2.6.35.5); Upgrade canonical ubuntu_linux to a higher version than 9.10,10.04,10.10,and avoid the version 9.10,10.04,10.10; Upgrade suse linux_enterprise_desktop to a higher version than 11,and avoid the version 11; Upgrade suse linux_enterprise_high_availability_extension to a higher version than 11:sp1,and avoid the version 11:sp1; Upgrade suse linux_enterprise_server to a higher version than 11,and avoid the version 11