From: Sven Eckelmann sven.eckelmann@open-mesh.com
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: c0f25c802b33 ("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 --- net/batman-adv/fragmentation.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c index a98cf1104a30..ebe6e38934e4 100644 --- a/net/batman-adv/fragmentation.c +++ b/net/batman-adv/fragmentation.c @@ -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);