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Bluetooth: Check the SDU size against the MTU value

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If the SDU size is greater than the MTU something is wrong, so report
an error.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
[jprvita@profusion.mobi: set err to appropriate errno value]
Signed-off-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Gustavo F. Padovan 2010-05-01 16:15:40 -03:00 committed by Marcel Holtmann
parent 10467e9e9b
commit 052897ca50
1 changed files with 5 additions and 0 deletions
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5
net/bluetooth/l2cap.c
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@ -3338,6 +3338,11 @@ static int l2cap_sar_reassembly_sdu(struct sock *sk, struct sk_buff *skb, u16 co
pi->sdu_len = get_unaligned_le16(skb->data);
skb_pull(skb, 2);
if (pi->sdu_len > pi->imtu) {
err = -EMSGSIZE;
break;
}
pi->sdu = bt_skb_alloc(pi->sdu_len, GFP_ATOMIC);
if (!pi->sdu) {
err = -ENOMEM;