tree de9f8957105f9bbec25988e2738394cbeecd93ef
parent aeab631811cb795cc384a3c9bd3346767a0b3daf
author Jiri Kosina <jkosina@suse.cz> 1409123595 +0200
committer chrmhoffmann <chrmhoffmann@gmail.com> 1586074839 +0200

HID: picolcd: sanity check report size in raw_event() callback

commit 844817e47eef14141cf59b8d5ac08dd11c0a9189 upstream.

The report passed to us from transport driver could potentially be
arbitrarily large, therefore we better sanity-check it so that raw_data
that we hold in picolcd_pending structure are always kept within proper
bounds.

Reported-by: Steven Vittitoe <scvitti@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[lizf: Backported to 3.4: adjust filename]
Signed-off-by: Zefan Li <lizefan@huawei.com>