xfs: ioctl check for capabilities in the current user namespace
authorDwight Engen <dwight.engen@oracle.com>
Thu, 15 Aug 2013 18:08:00 +0000 (14:08 -0400)
committerBen Myers <bpm@sgi.com>
Thu, 15 Aug 2013 19:19:25 +0000 (14:19 -0500)
commitfd5e2aa8653665ae1cc60f7aca1069abdbcad3f6
tree5d05c2c4190f30534f866ef881a8391bc7ea322c
parent288bbe0eeb3da7238482ca586c6fb029801336be
xfs: ioctl check for capabilities in the current user namespace

Use inode_capable() to check if SUID|SGID bits should be cleared to match
similar check in inode_change_ok().

The check for CAP_LINUX_IMMUTABLE was not modified since all other file
systems also check against init_user_ns rather than current_user_ns.

Only allow changing of projid from init_user_ns.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
fs/xfs/xfs_ioctl.c
kernel/capability.c