Commit fe77d825 authored Nov 29, 2017 by Sven Eckelmann Committed by Simon Wunderlich Dec 01, 2017

batman-adv: Always initialize fragment header priority

The batman-adv unuicast fragment header contains 3 bits for the priority of
the packet. These bits will be initialized when the skb->priority contains
a value between 256 and 263. But otherwise, the uninitialized bits from the
stack will be used.

Fixes: c0f25c80 ("batman-adv: Include frame priority in fragment header")
Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>

parent 4fbd8d19

net/batman-adv/fragmentation.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -499,6 +499,8 @@ int batadv_frag_send_packet(struct sk_buff *skb,
		*/
		if (skb->priority >= 256 && skb->priority <= 263)
		frag_header.priority = skb->priority - 256;
		else
		frag_header.priority = 0;

		ether_addr_copy(frag_header.orig, primary_if->net_dev->dev_addr);
		ether_addr_copy(frag_header.dest, orig_node->orig);