NeilBrown b95aa98e77 autofs: sanity check status reported with AUTOFS_DEV_IOCTL_FAIL ... commit 9fa4eb8e490a28de40964b1b0e583d8db4c7e57c upstream. If a positive status is passed with the AUTOFS_DEV_IOCTL_FAIL ioctl, autofs4_d_automount() will return ERR_PTR(status) with that status to follow_automount(), which will then dereference an invalid pointer. So treat a positive status the same as zero, and map to ENOENT. See comment in systemd src/core/automount.c::automount_send_ready(). Link: http://lkml.kernel.org/r/871sqwczx5.fsf@notabene.neil.brown.name Signed-off-by: NeilBrown <neilb@suse.com> Cc: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-06-29 12:48:50 +02:00
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autofs_i.h
dev-ioctl.c	autofs: sanity check status reported with AUTOFS_DEV_IOCTL_FAIL	2017-06-29 12:48:50 +02:00
expire.c	autofs: use dentry flags to block walks during expire	2016-09-30 10:18:37 +02:00
init.c
inode.c
Kconfig
Makefile
root.c
symlink.c
waitq.c