This is a note to let you know that I've just added the patch titled
Bluetooth: mgmt: Fix refresh cached connection info
to the 5.19-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-mgmt-fix-refresh-cached-connection-info.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 841a6066f4839dc2caef7d8ee4edde4b300424d1
Author: Zhengping Jiang <jiangzp@xxxxxxxxxx>
Date: Mon Jun 13 14:43:27 2022 -0700
Bluetooth: mgmt: Fix refresh cached connection info
[ Upstream commit d7b2fdfb53ea09382941c0a4950dc9b00d51d1c7 ]
Set the connection data before calling get_conn_info_sync, so it can be
verified the connection is still connected, before refreshing cached
values.
Fixes: 47db6b42991e6 ("Bluetooth: hci_sync: Convert MGMT_OP_GET_CONN_INFO")
Signed-off-by: Zhengping Jiang <jiangzp@xxxxxxxxxx>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 2f91a8c2b678..cbdf0e2bc5ae 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -6820,11 +6820,14 @@ static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
cmd = mgmt_pending_new(sk, MGMT_OP_GET_CONN_INFO, hdev, data,
len);
- if (!cmd)
+ if (!cmd) {
err = -ENOMEM;
- else
+ } else {
+ hci_conn_hold(conn);
+ cmd->user_data = hci_conn_get(conn);
err = hci_cmd_sync_queue(hdev, get_conn_info_sync,
cmd, get_conn_info_complete);
+ }
if (err < 0) {
mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
@@ -6836,9 +6839,6 @@ static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
goto unlock;
}
- hci_conn_hold(conn);
- cmd->user_data = hci_conn_get(conn);
-
conn->conn_info_timestamp = jiffies;
} else {
/* Cache is valid, just reply with values cached in hci_conn */
