net/x25: fix called/calling length calculation in x25_parse_address_block

The length of the called and calling address was not calculated
correctly (BCD encoding).

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Martin Schiller 2018-11-27 09:50:27 +01:00 committed by David S. Miller
parent 90230968f1
commit d449ba3d58

View File

@ -100,7 +100,7 @@ int x25_parse_address_block(struct sk_buff *skb,
} }
len = *skb->data; len = *skb->data;
needed = 1 + (len >> 4) + (len & 0x0f); needed = 1 + ((len >> 4) + (len & 0x0f) + 1) / 2;
if (!pskb_may_pull(skb, needed)) { if (!pskb_may_pull(skb, needed)) {
/* packet is too short to hold the addresses it claims /* packet is too short to hold the addresses it claims