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6lowpan: fix tag variable size

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Function lowpan_alloc_new_frame() takes u8 tag as an argument. However,
its only caller, lowpan_process_data() passes down a u16. Hence,
the tag value can get corrupted. This prevent 6lowpan fragment reassembly of a
message when the fragment tag value is over 256.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Cc: Tony Cheneau <tony.cheneau@amnesiak.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
alex.bluesman.smirnov@gmail.com 2012-07-10 21:22:47 +00:00 committed by David S. Miller
parent 428840424f
commit abbee2effc
1 changed files with 1 additions and 1 deletions
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2
net/ieee802154/6lowpan.c
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@ -646,7 +646,7 @@ static void lowpan_fragment_timer_expired(unsigned long entry_addr)
}
static struct lowpan_fragment *
lowpan_alloc_new_frame(struct sk_buff *skb, u8 iphc0, u8 len, u8 tag)
lowpan_alloc_new_frame(struct sk_buff *skb, u8 iphc0, u8 len, u16 tag)
{
struct lowpan_fragment *frame;