From: Phillip Susi <psusi@cfl.rr.com>
To: linux-kernel@vger.kernel.org
Subject: proc filesystem lets you out of a chroot?
Date: Wed, 09 Nov 2011 14:41:21 -0500 [thread overview]
Message-ID: <4EBAD761.4060501@cfl.rr.com> (raw)
I thought that symlinks could not be followed out of a chroot, but if
you follow /proc/1/root, you can escape from your chroot. When open()
finds that /proc/1/root is a symlink and restarts the name lookup with
"/", shouldn't that start with the calling process's root and not init's?
reply other threads:[~2011-11-09 19:41 UTC|newest]
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