When retrasmitting one frame, only SAR bits in control field should
be kept.
Signed-off-by: Ruiyi Zhang <Ruiyi.zhang@xxxxxxxxxxx>
---
net/bluetooth/l2cap_core.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ca27f3a..2c8dd44 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1051,6 +1051,7 @@ static void l2cap_retransmit_one_frame(struct sock *sk, u8 tx_seq)
tx_skb = skb_clone(skb, GFP_ATOMIC);
bt_cb(skb)->retries++;
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
+ control &= L2CAP_CTRL_SAR;
if (pi->conn_state & L2CAP_CONN_SEND_FBIT) {
control |= L2CAP_CTRL_FINAL;
--
1.7.1
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