Al Viro 9b40bc90ab get rid of unprotected dereferencing of mnt->mnt_ns ...

It's safe only under namespace_sem or vfsmount_lock; all places
in fs/namespace.c that want mnt->mnt_ns->user_ns actually want to use
current->nsproxy->mnt_ns->user_ns (note the calls of check_mnt() in
there).

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2013-02-22 23:31:05 -05:00

68 KiB

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