Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:
On Wed, 4 Dec 2024 11:58:49 -0500 you wrote:
> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>
> This reworks hci_cb_list to not use mutex hci_cb_list_lock to avoid bugs
> like the bellow:
>
> BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585
> in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5070, name: kworker/u9:2
> preempt_count: 0, expected: 0
> RCU nest depth: 1, expected: 0
> 4 locks held by kworker/u9:2/5070:
> #0: ffff888015be3948 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
> #0: ffff888015be3948 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335
> #1: ffffc90003b6fd00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
> #1: ffffc90003b6fd00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335
> #2: ffff8880665d0078 (&hdev->lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0xcf/0xae0 net/bluetooth/hci_event.c:6914
> #3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
> #3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
> #3: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: hci_le_create_big_complete_evt+0xdb/0xae0 net/bluetooth/hci_event.c:6915
> CPU: 0 PID: 5070 Comm: kworker/u9:2 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
> Workqueue: hci0 hci_rx_work
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:88 [inline]
> dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
> __might_resched+0x5d4/0x780 kernel/sched/core.c:10187
> __mutex_lock_common kernel/locking/mutex.c:585 [inline]
> __mutex_lock+0xc1/0xd70 kernel/locking/mutex.c:752
> hci_connect_cfm include/net/bluetooth/hci_core.h:2004 [inline]
> hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6939
> hci_event_func net/bluetooth/hci_event.c:7514 [inline]
> hci_event_packet+0xa53/0x1540 net/bluetooth/hci_event.c:7569
> hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4171
> process_one_work kernel/workqueue.c:3254 [inline]
> process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
> worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
> kthread+0x2f0/0x390 kernel/kthread.c:388
> ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
> ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
> </TASK>
>
> [...]
Here is the summary with links:
- [v2] Bluetooth: hci_core: Fix sleeping function called from invalid context
https://git.kernel.org/bluetooth/bluetooth-next/c/20c9afdfb287
You are awesome, thank you!
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