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Bluetooth: Fix memory leak in hci_req_sync_complete()
In 'hci_req_sync_complete()', always free the previous sync
request state before assigning reference to a new one.
Reported-by: syzbot+39ec16ff6cc18b1d066d@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=39ec16ff6cc18b1d066d
Cc: stable@vger.kernel.org
Fixes: f60cb30579
("Bluetooth: Convert hci_req_sync family of function to new request API")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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@ -105,8 +105,10 @@ void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
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if (hdev->req_status == HCI_REQ_PEND) {
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hdev->req_result = result;
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hdev->req_status = HCI_REQ_DONE;
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if (skb)
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if (skb) {
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kfree_skb(hdev->req_skb);
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hdev->req_skb = skb_get(skb);
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}
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wake_up_interruptible(&hdev->req_wait_q);
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}
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}
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