This is a note to let you know that I've just added the patch titled Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bluetooth-l2cap-fix-l2cap_global_chan_by_psm.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d42dcb06d81c9081c93c620043870e18395847b7 Author: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Date: Mon Oct 31 16:10:33 2022 -0700 Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm [ Upstream commit f937b758a188d6fd328a81367087eddbb2fce50f ] l2cap_global_chan_by_psm shall not return fixed channels as they are not meant to be connected by (S)PSM. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Reviewed-by: Tedd Ho-Jeong An <tedd.an@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index c0cdc28e1d1e..afa7fc55555e 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1833,7 +1833,7 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, if (link_type == LE_LINK && c->src_type == BDADDR_BREDR) continue; - if (c->psm == psm) { + if (c->chan_type != L2CAP_CHAN_FIXED && c->psm == psm) { int src_match, dst_match; int src_any, dst_any;