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| author | Edward Adam Davis <eadavis@qq.com> | 2024-06-17 14:09:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-11 13:49:11 +0300 |
| commit | 38263088b845abeeeb98dda5b87c0de3063b6dbb (patch) | |
| tree | 80dfbdd9bd96ed8e5512c311cdd632f66c634bc1 | |
| parent | 1ae31b357a774d1b0567e8de7a4d972b58f54176 (diff) | |
| download | linux-38263088b845abeeeb98dda5b87c0de3063b6dbb.tar.xz | |
Bluetooth: Ignore too large handle values in BIG
[ Upstream commit 015d79c96d62cd8a4a359fcf5be40d58088c936b ]
hci_le_big_sync_established_evt is necessary to filter out cases where the
handle value is belonging to ida id range, otherwise ida will be erroneously
released in hci_conn_cleanup.
Fixes: 181a42edddf5 ("Bluetooth: Make handle of hci_conn be unique")
Reported-by: syzbot+b2545b087a01a7319474@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=b2545b087a01a7319474
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/bluetooth/hci_event.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index ffb7d43597a2..727f040b6529 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -6905,6 +6905,10 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data, bis = hci_conn_hash_lookup_handle(hdev, handle); if (!bis) { + if (handle > HCI_CONN_HANDLE_MAX) { + bt_dev_dbg(hdev, "ignore too large handle %u", handle); + continue; + } bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY, HCI_ROLE_SLAVE, handle); if (IS_ERR(bis)) |