linux-bluetooth Weekly Report - Week 30
Total messages: 337 (240 human, 97 CI/bot)
linux-bluetooth Weekly Report - Week 26
28 June 2026
Total messages: 290 (223 human, 67 CI/bot)
Note: Of the 290 messages, 223 are human-generated, 67 are CI/bot (bluez.test.bot: 37, patchwork-bot+bluetooth: 17, BluezTestBot: 7, bugzilla-daemon: 2, kernel test robot: 2, prathibhamadugonde: 1, Sasha Levin: 1).
Summary
This week saw significant activity on the linux-bluetooth mailing list, with a total of 290 messages exchanged. Key discussions focused on bug fixes for btusb and btqca, support for new hardware such as the MT7928 and IPQ5018, and security-related patches addressing vulnerabilities like CVE-2026-46140. Contributions came from a diverse group of developers, with Zijun Hu (Qualcomm) leading the message count. Several patches were applied to bluetooth-next and BlueZ master branches, reflecting active development in both kernel and userspace Bluetooth subsystems.
Key Patch Series & Discussions
Kernel Patches
| Topic | From | Affiliation | Patches | Status/Notes |
|---|---|---|---|---|
| Bluetooth: btusb/btqca/hci_sync: Clean up btusb and fix several bugs | Zijun Hu | Qualcomm | 13 | Initial version |
| Bluetooth: btusb/btqca/hci_sync: Clean up btusb and fix several bugs | Zijun Hu | Qualcomm | 12 | Version 2 |
| Bluetooth: hci_conn: hold conn references in hci_sync tasks | Pauli Virtanen | Independent | 7 | Version 4 |
| Bluetooth: hci_conn: hold conn reference in abort_conn_sync() | Pauli Virtanen | Independent | 7 | Version 3 |
| remoteproc: qcom: Add M0 BTSS secure PIL driver | George Moussalem | Independent | 6 | Initial version |
| Bluetooth: btmtk: Add MT7928 support | Chris Lu | MediaTek | 2 | Version 4 |
| Bluetooth: btmtk: Add MT7928 support | Chris Lu | MediaTek | 3 | Version 5 |
| Bluetooth: hci_bcm: add BCM43752 | Hugo Osvaldo Barrera | Independent | 2 | Initial version |
BlueZ Userspace Patches
| Topic | From | Affiliation | Patches | Status/Notes |
|---|---|---|---|---|
| a2dp: Fix handling of codec capability storage | Luiz Augusto von Dentz | Intel | 2 | Version 2 |
| shared/rap: Fix step payload pointer in parse_step | Prathibha Madugonde | Qualcomm | 2 | Initial version |
| bass: Fix possible crash on bass_update_bis_sync | Luiz Augusto von Dentz | Intel | 3 | Initial version |
Discussions & Bug Reports
| Topic | From | Notes |
|---|---|---|
| Bluetooth: btusb/btqca/hci_sync: Clean up btusb and fix several bugs | Zijun Hu | Active discussion with 32 messages |
| crypto: af_alg - Add af_alg_restrict sysctl, defaulting to 1 | Eric Biggers | Security-related discussion |
| Add PCIe M.2 Key E connector support for NXP i.MX boards | Sherry Sun | Hardware support for NXP boards |
Top Contributors (by message count)
| Contributor | Affiliation | Messages |
|---|---|---|
| Zijun Hu | Qualcomm | 34 |
| Luiz Augusto von Dentz | Intel | 18 |
| Sherry Sun | Independent | 18 |
| Pauli Virtanen | Independent | 17 |
| Eric Biggers | Independent | 12 |
Merged to master (BlueZ & bluetooth-next)
Applied to bluetooth-next (kernel, via patchwork notifications)
- Bluetooth: L2CAP: cancel pending_rx_work before taking conn->lock
- Bluetooth: ISO: avoid NULL deref of conn in iso_conn_big_sync()
- Bluetooth: btnxpuart: Fix out-of-bounds firmware read in nxp_recv_fw_r
- Bluetooth: simplify force_no_mitm_write() with kstrtobool_from_user()
- Bluetooth: enable context analysis
Pushed to bluez/bluez master
- shared: rap: Defer CS Event registration until connection setup
- a2dp: Fix handling of codec capability storage
- monitor: Add decoding of new MSFT extension features
Company Focus Areas
Intel
- Continued contributions to A2DP codec handling and Bluetooth audio improvements.
Qualcomm
- Active work on btusb and btqca bug fixes and hardware support for IPQ5018 Bluetooth.
MediaTek
- Development of MT7928 Bluetooth support.
Independent Contributors
- Security fixes and enhancements, including CVE-2026-46140 and race condition resolutions.
Notable Trends
- Increased focus on bug fixes and cleanup in btusb and btqca drivers.
- Hardware support expansions, including MT7928 and IPQ5018 Bluetooth controllers.
- Security-related patches addressing vulnerabilities and race conditions.
- Collaboration across companies and independent contributors on kernel and BlueZ improvements.
- Active discussions on improving Bluetooth subsystem stability and performance.
- Continued enhancements to A2DP codec handling and audio features.
- Growing contributions from independent developers in both kernel and userspace.