The epoll_ctl system call in fs/eventpoll.c in the Linux kernel before
3.2.24 does not properly handle ELOOP errors in EPOLL_CTL_ADD
operations, which allows local users to cause a denial of service
(file-descriptor consumption and system crash) via a crafted
application that attempts to create a circular epoll dependency. NOTE:
this vulnerability exists because of an incorrect fix for
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20120704 Re: CVE Request -- kernel: epoll: can leak file descriptors when returning -ELOOP
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