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author | NeilBrown <neilb@suse.com> | 2017-06-24 01:08:43 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-29 10:12:23 +0300 |
commit | 75735be71f994da3d90657f06ce72a814bb7fc86 (patch) | |
tree | 3461bea7034f4865cc4d22b8e12e6120b428f28f /sound/arm/pxa2xx-pcm.h | |
parent | 2dff2164d171e9c27f2f7fa778d408ecf4d1e1ea (diff) | |
download | linux-75735be71f994da3d90657f06ce72a814bb7fc86.tar.xz |
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>
Diffstat (limited to 'sound/arm/pxa2xx-pcm.h')
0 files changed, 0 insertions, 0 deletions