Date: Tue, 30 Nov 2010 13:20:49 +0800 From: Eugene Teo <eugene@...hat.com> To: oss-security@...ts.openwall.com CC: "Steven M. Christey" <coley@...us.mitre.org> Subject: CVE request: kernel: pipe_fcntl local DoS "Export 'get_pipe_info()' to other users And in particular, use it in 'pipe_fcntl()'. The other pipe functions do not need to use the 'careful' version, since they are only ever called for things that are already known to be pipes. The normal read/write/ioctl functions are called through the file operations structures, so if a file isn't a pipe, they'd never get called. But pipe_fcntl() is special, and called directly from the generic fcntl code, and needs to use the same careful function that the splice code is using." In other words, this is a pipe_fcntl local DoS. http://git.kernel.org/linus/71993e62a47dabddf10302807d6aa260455503f4 http://git.kernel.org/linus/c66fb347946ebdd5b10908866ecc9fa05ee2cf3d Introduced in v2.6.35-rc1 Thanks, Eugene
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