Bluetooth: hci3: command 0x2016 tx timeout ------------[ cut here ]------------ refcnt < 0 WARNING: net/bluetooth/hci_conn.c:567 at hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:567, CPU#1: kworker/u9:5/5834 Modules linked in: CPU: 1 UID: 0 PID: 5834 Comm: kworker/u9:5 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: hci3 hci_conn_timeout RIP: 0010:hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:567 Code: 44 0f b6 2d cb 60 4f 06 31 ff 41 83 e5 40 44 89 ee e8 6a ae 82 f7 45 84 ed 0f 84 02 ff ff ff e9 a6 b5 eb f6 e8 07 b4 82 f7 90 <0f> 0b 90 e8 fe b3 82 f7 48 8d bb fd f5 ff ff 48 b8 00 00 00 00 00 RSP: 0018:ffffc900034f7c18 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888078190a40 RCX: ffffffff8a85dcdf RDX: ffff8880776c1e80 RSI: ffffffff8a85ddd9 RDI: ffff8880776c1e80 RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffffff R11: 00000000000075eb R12: ffff888078190000 R13: ffff8880776c2344 R14: ffffffff90d9e5e4 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888124445000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30914ff8 CR3: 000000005bece000 CR4: 0000000000350ef0 Call Trace: process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275 process_scheduled_works kernel/workqueue.c:3358 [inline] worker_thread+0x5da/0xe40 kernel/workqueue.c:3439 kthread+0x370/0x450 kernel/kthread.c:467 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245