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 4.9-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-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 62783a553dc6158c8fdcf4b1921f1dbd7cc8d0c9
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 693344984035..c230f89e7238 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1824,7 +1824,7 @@ 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;
