Bluetooth: hci0: command tx timeout Bluetooth: hci0: command tx timeout ------------[ cut here ]------------ WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x48a/0x840 kernel/printk/printk_ringbuffer.c:1278, CPU#0: kworker/u9:1/5149 Modules linked in: CPU: 0 UID: 0 PID: 5149 Comm: kworker/u9:1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: hci0 hci_cmd_timeout RIP: 0010:get_data+0x48a/0x840 kernel/printk/printk_ringbuffer.c:1278 Code: 83 c4 f8 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 ee 01 00 00 44 89 65 00 49 83 c5 08 eb 13 e8 57 d7 1e 00 90 <0f> 0b 90 eb 05 e8 4c d7 1e 00 45 31 ed 4c 89 e8 48 83 c4 28 5b 41 RSP: 0018:ffffc9000dff70e0 EFLAGS: 00010293 RAX: ffffffff81a1fa59 RBX: 00003fffffffffff RCX: ffff8880353a5ac0 RDX: 0000000000000000 RSI: 00003fffffffffff RDI: 0000000000000000 RBP: 0000000000000012 R08: 0000000000000eac R09: 000000560380cc85 R10: 000000560380cc85 R11: 0000141d62000023 R12: 0000000000000012 R13: 0000000000000000 R14: ffffc9000dff7228 R15: 1ffffffff1c4aaa6 FS: 0000000000000000(0000) GS:ffff8881258a3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8d6dc08f98 CR3: 0000000073f9a000 CR4: 00000000003526f0 Call Trace: copy_data kernel/printk/printk_ringbuffer.c:1857 [inline] prb_read kernel/printk/printk_ringbuffer.c:1966 [inline] _prb_read_valid+0x672/0xa90 kernel/printk/printk_ringbuffer.c:2143 prb_read_valid+0x3c/0x60 kernel/printk/printk_ringbuffer.c:2215 printk_get_next_message+0x15c/0x7b0 kernel/printk/printk.c:2978 console_emit_next_record kernel/printk/printk.c:3065 [inline] console_flush_one_record kernel/printk/printk.c:3197 [inline] console_flush_all+0x4cc/0xb10 kernel/printk/printk.c:3271 __console_flush_and_unlock kernel/printk/printk.c:3301 [inline] console_unlock+0xbb/0x190 kernel/printk/printk.c:3341 vprintk_emit+0x4c5/0x590 kernel/printk/printk.c:2423 _printk+0xcf/0x120 kernel/printk/printk.c:2448 bt_err+0x10b/0x160 net/bluetooth/lib.c:296 hci_cmd_timeout+0xff/0x1e0 net/bluetooth/hci_core.c:1473 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245