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Here are two batman-adv bugfixes:

Browse Source 
- Explicitly pad short ELP packets with zeros, by Sven Eckelmann
 
  - Fix packet size calculation when merging fragments,
    by Sven Eckelmann
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Merge tag 'batadv-net-for-davem-20181114' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
Here are two batman-adv bugfixes:

 - Explicitly pad short ELP packets with zeros, by Sven Eckelmann

 - Fix packet size calculation when merging fragments,
   by Sven Eckelmann
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-11-16 20:26:30 -08:00
commit 5594923f6e
2 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
net/batman-adv/bat_v_elp.c
View File

@ -352,19 +352,21 @@ out:
*/
int batadv_v_elp_iface_enable(struct batadv_hard_iface *hard_iface)
{
static const size_t tvlv_padding = sizeof(__be32);
struct batadv_elp_packet *elp_packet;
unsigned char *elp_buff;
u32 random_seqno;
size_t size;
int res = -ENOMEM;
size = ETH_HLEN + NET_IP_ALIGN + BATADV_ELP_HLEN;
size = ETH_HLEN + NET_IP_ALIGN + BATADV_ELP_HLEN + tvlv_padding;
hard_iface->bat_v.elp_skb = dev_alloc_skb(size);
if (!hard_iface->bat_v.elp_skb)
goto out;
skb_reserve(hard_iface->bat_v.elp_skb, ETH_HLEN + NET_IP_ALIGN);
elp_buff = skb_put_zero(hard_iface->bat_v.elp_skb, BATADV_ELP_HLEN);
elp_buff = skb_put_zero(hard_iface->bat_v.elp_skb,
BATADV_ELP_HLEN + tvlv_padding);
elp_packet = (struct batadv_elp_packet *)elp_buff;
elp_packet->packet_type = BATADV_ELP;

2
net/batman-adv/fragmentation.c
View File

@ -275,7 +275,7 @@ batadv_frag_merge_packets(struct hlist_head *chain)
kfree(entry);
packet = (struct batadv_frag_packet *)skb_out->data;
size = ntohs(packet->total_size);
size = ntohs(packet->total_size) + hdr_size;
/* Make room for the rest of the fragments. */
if (pskb_expand_head(skb_out, 0, size - skb_out->len, GFP_ATOMIC) < 0) {