Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
kernel/trace/ftrace.c in the Linux kernel before 2.6.35.5, when debugfs is enabled, does not properly handle interaction between mutex possession and llseek operations, which allows local users to cause a denial of service (NULL pointer dereference and outage of all function tracing files) via an lseek call on a file descriptor associated with the set_ftrace_filter file.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 'kernel/trace/ftrace.c'设计错误漏洞
Vulnerability Description
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）。
CVSS Information
N/A
Vulnerability Type
N/A