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ALSA: bebob: potential info leak in hwdep_read()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 7 Oct 2020 07:49:28 +0000 (10:49 +0300)
committerTakashi Iwai <tiwai@suse.de>
Wed, 7 Oct 2020 15:33:52 +0000 (17:33 +0200)
commitb41c15f4e1c1f1657da15c482fa837c1b7384452
treeb5c864aa8b2320df7356e4f91559171feac3abfd
parentca184355db8e60290fa34bf61c13308e6f4f50d3
ALSA: bebob: potential info leak in hwdep_read()

The "count" variable needs to be capped on every path so that we don't
copy too much information to the user.

Fixes: 618eabeae711 ("ALSA: bebob: Add hwdep interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201007074928.GA2529578@mwanda
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/firewire/bebob/bebob_hwdep.c