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| author | Dmitry Antipov <dmantipov@yandex.ru> | 2024-04-02 14:32:05 +0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-04-10 15:03:44 -0400 |
| commit | 45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810 (patch) | |
| tree | 05f83c933c97c31e653e915c881686003215b771 | |
| parent | 53cb4197e63ab2363aa28c3029061e4d516e7626 (diff) | |
| download | linux-45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810.tar.gz | |
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: f60cb30579d3 ("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>
| -rw-r--r-- | net/bluetooth/hci_request.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 00e02138003ece..efea25eb56ce03 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -105,8 +105,10 @@ void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode, if (hdev->req_status == HCI_REQ_PEND) { hdev->req_result = result; hdev->req_status = HCI_REQ_DONE; - if (skb) + if (skb) { + kfree_skb(hdev->req_skb); hdev->req_skb = skb_get(skb); + } wake_up_interruptible(&hdev->req_wait_q); } } |