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| author | NeilBrown <neilb@suse.com> | 2017-06-23 15:08:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-29 12:48:50 +0200 |
| commit | b95aa98e77d7086f4a303a5e9402ab165a5f0cc6 (patch) | |
| tree | f526ee27ae9fae1c02972a5af72623cf361c7ba0 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 1d3d0f8b7cf758136ed36b30620442d989601737 (diff) | |
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 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions