From: Dwight Engen Date: Thu, 15 Aug 2013 18:08:03 +0000 (-0400) Subject: xfs: add capability check to free eofblocks ioctl X-Git-Tag: v3.12-rc1~80^2~49 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c567a7fab6e086a0284eee2db82348521e7120c;p=pandora-kernel.git xfs: add capability check to free eofblocks ioctl Check for CAP_SYS_ADMIN since the caller can truncate preallocated blocks from files they do not own nor have write access to. A more fine grained access check was considered: require the caller to specify their own uid/gid and to use inode_permission to check for write, but this would not catch the case of an inode not reachable via path traversal from the callers mount namespace. Add check for read-only filesystem to free eofblocks ioctl. Reviewed-by: Brian Foster Reviewed-by: Dave Chinner Reviewed-by: Gao feng Signed-off-by: Dwight Engen Signed-off-by: Ben Myers --- Reading git-diff-tree failed