diff options
| author | Benjamin Berg <bberg@redhat.com> | 2021-12-17 18:28:09 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-12-23 01:01:27 +0300 |
| commit | 744451c162a514044a912cbbd64b7a386035cc5b (patch) | |
| tree | 3b98ed43f097ae8e357b895c93078b1932207e6b /include/net/bluetooth/hci_sync.h | |
| parent | df1e5c51492fd93ffc293acdcc6f00698d19fedc (diff) | |
| download | linux-744451c162a514044a912cbbd64b7a386035cc5b.tar.xz | |
Bluetooth: hci_sync: Push sync command cancellation to workqueue
syzbot reported that hci_cmd_sync_cancel may sleep from the wrong
context. To avoid this, create a new work item that pushes the relevant
parts into a different context.
Note that we keep the old implementation with the name
__hci_cmd_sync_cancel as the sleeping behaviour is desired in some
cases.
Reported-and-tested-by: syzbot+485cc00ea7cf41dfdbf1@syzkaller.appspotmail.com
Fixes: c97a747efc93 ("Bluetooth: btusb: Cancel sync commands for certain URB errors")
Signed-off-by: Benjamin Berg <bberg@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/net/bluetooth/hci_sync.h')
| -rw-r--r-- | include/net/bluetooth/hci_sync.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h index f4034bf8f1ce..435674cf388e 100644 --- a/include/net/bluetooth/hci_sync.h +++ b/include/net/bluetooth/hci_sync.h @@ -38,6 +38,7 @@ int __hci_cmd_sync_status_sk(struct hci_dev *hdev, u16 opcode, u32 plen, void hci_cmd_sync_init(struct hci_dev *hdev); void hci_cmd_sync_clear(struct hci_dev *hdev); void hci_cmd_sync_cancel(struct hci_dev *hdev, int err); +void __hci_cmd_sync_cancel(struct hci_dev *hdev, int err); int hci_cmd_sync_queue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func, void *data, hci_cmd_sync_work_destroy_t destroy); |