net/x25: fix called/calling length calculation in x25_parse_address_b…

…lock The length of the called and calling address was not calculated correctly (BCD encoding). Signed-off-by: Martin Schiller <[email protected]> Signed-off-by: David S. Miller <[email protected]>
josf · Nov 29, 2018 · d449ba3 · d449ba3
1 parent 9023096
commit d449ba3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
@@ -100,7 +100,7 @@ int x25_parse_address_block(struct sk_buff *skb,
 	}
 
 	len = *skb->data;
-	needed = 1 + (len >> 4) + (len & 0x0f);
+	needed = 1 + ((len >> 4) + (len & 0x0f) + 1) / 2;
 
 	if (!pskb_may_pull(skb, needed)) {
 		/* packet is too short to hold the addresses it claims