tree ba8b84deba9a4702f5ea71520dba1169f9ee099e
parent b8b8b16352cd90c6083033fd4487f04fae935c18
author Kevin Cernekee <cernekee@chromium.org> 1505621304 -0700
committer Kalle Valo <kvalo@codeaurora.org> 1506952281 +0300

brcmfmac: Add check for short event packets

The length of the data in the received skb is currently passed into
brcmf_fweh_process_event() as packet_len, but this value is not checked.
event_packet should be followed by DATALEN bytes of additional event
data.  Ensure that the received packet actually contains at least
DATALEN bytes of additional data, to avoid copying uninitialized memory
into event->data.

Cc: <stable@vger.kernel.org> # v3.8
Suggested-by: Mattias Nissler <mnissler@chromium.org>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>