From: Yi Cong <cong.yi@linux.dev>
To: marcel@holtmann.org, luiz.dentz@gmail.com
Cc: linux-bluetooth@vger.kernel.org, stable@vger.kernel.org,
Yi Cong <yicong@kylinos.cn>
Subject: [PATCH 0/2] Bluetooth: virtio_bt: harden probe error paths
Date: Tue, 11 Aug 2026 11:27:00 +0800 [thread overview]
Message-ID: <20260811032702.67908-1-cong.yi@linux.dev> (raw)
From: Yi Cong <yicong@kylinos.cn>
This small series hardens the two error paths in virtbt_probe() that
currently leak or leave dangling state behind:
1/2 - if virtio_find_vqs() fails, the allocated 'vbt' and the
'vdev->priv' pointer that already references it are leaked.
2/2 - if virtbt_open_vdev() fails after hci_register_dev() has
succeeded, the hdev is freed without unregistering, leaving a
dangling entry in the global HCI device list (UAF).
Fixes: afd2daa26c7a ("Bluetooth: Add support for virtio transport driver")
Yi Cong (2):
Bluetooth: virtio_bt: fix leak of vbt on virtio_find_vqs failure
Bluetooth: virtio_bt: unregister hdev before freeing on open failure
drivers/bluetooth/virtio_bt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--
2.25.1
next reply other threads:[~2026-08-11 3:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-11 3:27 Yi Cong [this message]
2026-08-11 3:27 ` [PATCH 1/2] Bluetooth: virtio_bt: fix leak of vbt on virtio_find_vqs failure Yi Cong
2026-08-11 4:45 ` Bluetooth: virtio_bt: harden probe error paths bluez.test.bot
2026-08-11 3:27 ` [PATCH 2/2] Bluetooth: virtio_bt: unregister hdev before freeing on open failure Yi Cong
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