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authorIulia Tanasescu <iulia.tanasescu@nxp.com>2023-09-28 10:52:57 +0300
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2023-10-11 11:15:40 -0700
commitacab8ff29a2a226409cfe04e6d2e0896928c1b3a (patch)
tree24582565073dfbb99910322cb1563ab02ddccdda /net/bluetooth
parent92d4abd66f7080075793970fc8f241239e58a9e7 (diff)
Bluetooth: ISO: Fix invalid context error
This moves the hci_le_terminate_big_sync call from rx_work to cmd_sync_work, to avoid calling sleeping function from an invalid context. Reported-by: syzbot+c715e1bd8dfbcb1ab176@syzkaller.appspotmail.com Fixes: a0bfde167b50 ("Bluetooth: ISO: Add support for connecting multiple BISes") Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_event.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 31d02b54eea1..e6cfc65abcb8 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -7021,6 +7021,14 @@ unlock:
hci_dev_unlock(hdev);
}
+static int hci_iso_term_big_sync(struct hci_dev *hdev, void *data)
+{
+ u8 handle = PTR_UINT(data);
+
+ return hci_le_terminate_big_sync(hdev, handle,
+ HCI_ERROR_LOCAL_HOST_TERM);
+}
+
static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
struct sk_buff *skb)
{
@@ -7065,16 +7073,17 @@ static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
rcu_read_lock();
}
+ rcu_read_unlock();
+
if (!ev->status && !i)
/* If no BISes have been connected for the BIG,
* terminate. This is in case all bound connections
* have been closed before the BIG creation
* has completed.
*/
- hci_le_terminate_big_sync(hdev, ev->handle,
- HCI_ERROR_LOCAL_HOST_TERM);
+ hci_cmd_sync_queue(hdev, hci_iso_term_big_sync,
+ UINT_PTR(ev->handle), NULL);
- rcu_read_unlock();
hci_dev_unlock(hdev);
}