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| author | Gustavo F. Padovan <padovan@profusion.mobi> | 2010-05-01 16:15:40 -0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2010-05-10 09:28:49 +0200 |
| commit | 052897ca5019d9157ae09e5e84eee2a9ef5dccc6 (patch) | |
| tree | e236a9c5b6559f31c69c9b5e6fa02dbd70294ad6 /net/bluetooth | |
| parent | 10467e9e9b89272b25b56688bb276d0830e9ab9a (diff) | |
| download | linux-3.10-052897ca5019d9157ae09e5e84eee2a9ef5dccc6.tar.gz linux-3.10-052897ca5019d9157ae09e5e84eee2a9ef5dccc6.tar.bz2 linux-3.10-052897ca5019d9157ae09e5e84eee2a9ef5dccc6.zip | |
Bluetooth: Check the SDU size against the MTU value
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>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/l2cap.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 0889949b689..e936913c921 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -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; |