From: Zijun Hu <zijun.hu@oss.qualcomm.com>
To: Bartosz Golaszewski <brgl@kernel.org>,
Marcel Holtmann <marcel@holtmann.org>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
Mengshi Wu <mengshi.wu@oss.qualcomm.com>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Sai Teja Aluvala <quic_saluvala@quicinc.com>
Cc: Zijun Hu <zijun_hu@icloud.com>,
Luiz Augusto von Dentz <luiz.von.dentz@intel.com>,
Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org,
linux-kernel@vger.kernel.org,
Zijun Hu <zijun.hu@oss.qualcomm.com>
Subject: [PATCH 0/2] Bluetooth: hci_qca: fix NULL pointer dereferences for non-serdev devices
Date: Mon, 01 Jun 2026 04:30:54 -0700 [thread overview]
Message-ID: <20260601-fix_none_serdev-v1-0-8d0497ba83b0@oss.qualcomm.com> (raw)
When a QCA controller is attached via a non-serdev path (e.g. hci_uart
line discipline), hu->serdev is NULL. A couple of code paths dereference
it unconditionally, leading to NULL pointer dereferences.
This series fixes two such cases:
- qca_setup() dereferences the result of
serdev_device_get_drvdata(hu->serdev).
- qca_dmp_hdr() dereferences hu->serdev->dev.driver->name.
Both are fixed by guarding the dereference with a NULL check.
Signed-off-by: Zijun Hu <zijun.hu@oss.qualcomm.com>
---
Zijun Hu (2):
Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device
Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device
drivers/bluetooth/hci_qca.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
---
base-commit: 379b101059b44f64f6c5c022724f880a68fed15b
change-id: 20260601-fix_none_serdev-5f0635c21681
Best regards,
--
Zijun Hu <zijun.hu@oss.qualcomm.com>
next reply other threads:[~2026-06-01 11:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-01 11:30 Zijun Hu [this message]
2026-06-01 11:30 ` [PATCH 1/2] Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device Zijun Hu
2026-06-01 11:30 ` [PATCH 2/2] Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() " Zijun Hu
2026-06-01 19:10 ` [PATCH 0/2] Bluetooth: hci_qca: fix NULL pointer dereferences for non-serdev devices patchwork-bot+bluetooth
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