Patch "brcmfmac: Add check for short event packets" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

brcmfmac: Add check for short event packets

to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
brcmfmac-add-check-for-short-event-packets.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Kevin Cernekee <[email protected]>
Date: Sat, 16 Sep 2017 21:08:24 -0700
Subject: brcmfmac: Add check for short event packets

From: Kevin Cernekee <[email protected]>

commit dd2349121bb1b8ff688c3ca6a2a0bea9d8c142ca upstream.

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.

---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -429,7 +429,8 @@ void brcmf_fweh_process_event(struct brc
 	if (code != BRCMF_E_IF && !fweh->evt_handler[code])
 		return;
 
-	if (datalen > BRCMF_DCMD_MAXLEN)
+	if (datalen > BRCMF_DCMD_MAXLEN ||
+	    datalen + sizeof(*event_packet) > packet_len)
 		return;
 
 	if (in_interrupt())

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/brcmfmac-add-check-for-short-event-packets.patch