Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Race condition in the do_setlk function in fs/nfs/file.c in the Linux kernel before 2.6.26 allows local users to cause a denial of service (crash) via vectors resulting in an interrupted RPC call that leads to a stray FL_POSIX lock, related to improper handling of a race between fcntl and close in the EINTR case.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 竞争条件问题漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在竞争条件问题漏洞，该漏洞源于内核处理POSIX锁定时fcntl调用可能与关闭相同文件描述符出现竞争，本地攻击者可以利用这个漏洞导致拒绝服务或获得权限提升。 如果其中一个线程仍在fcntl_setlk中阻断期间但在许可锁定之前(在将file_lock结构放置到inode的i_lock列表之前)从另一个线程关闭了文件描述符，关闭路径中的locks_remove_posix调用就会错过POSIX锁定
CVSS Information
N/A
Vulnerability Type
N/A