Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.5:13672 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28592 13672 8148 0x00000004 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 schedule_timeout+0x92d/0xfe0 syzkaller/managers/linux-4-19/kernel/kernel/time/timer.c:1794 do_wait_for_common syzkaller/managers/linux-4-19/kernel/kernel/sched/completion.c:83 [inline] __wait_for_common syzkaller/managers/linux-4-19/kernel/kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 syzkaller/managers/linux-4-19/kernel/kernel/sched/completion.c:115 usb_start_wait_urb+0x14b/0x4c0 syzkaller/managers/linux-4-19/kernel/drivers/usb/core/message.c:62 usb_bulk_msg+0x226/0x550 syzkaller/managers/linux-4-19/kernel/drivers/usb/core/message.c:253 proc_bulk+0x3de/0x860 syzkaller/managers/linux-4-19/kernel/drivers/usb/core/devio.c:1206 usbdev_do_ioctl+0x696/0x3030 syzkaller/managers/linux-4-19/kernel/drivers/usb/core/devio.c:2430 usbdev_ioctl+0x21/0x30 syzkaller/managers/linux-4-19/kernel/drivers/usb/core/devio.c:2580 vfs_ioctl syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:46 [inline] file_ioctl syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:705 __do_sys_ioctl syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:712 [inline] __se_sys_ioctl syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 syzkaller/managers/linux-4-19/kernel/fs/ioctl.c:710 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465d99 Code: Bad RIP value. RSP: 002b:00007f61a0285188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465d99 RDX: 0000000020000340 RSI: 00000000c0185502 RDI: 0000000000000004 RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffebbfe099f R14: 00007f61a0285300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1567: #0: 00000000a7015983 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 syzkaller/managers/linux-4-19/kernel/kernel/locking/lockdep.c:4440 1 lock held by in:imklog/7795: 2 locks held by kworker/u4:4/8813: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1567 Comm: khungtaskd Not tainted 4.19.172-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 syzkaller/managers/linux-4-19/kernel/lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 syzkaller/managers/linux-4-19/kernel/lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace syzkaller/managers/linux-4-19/kernel/./include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks syzkaller/managers/linux-4-19/kernel/kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 syzkaller/managers/linux-4-19/kernel/kernel/hung_task.c:287 kthread+0x33f/0x460 syzkaller/managers/linux-4-19/kernel/kernel/kthread.c:259 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: rcu_preempt Not tainted 4.19.172-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_current syzkaller/managers/linux-4-19/kernel/./arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 syzkaller/managers/linux-4-19/kernel/kernel/kcov.c:100 Code: e8 a1 b7 35 00 e9 ab fe ff ff 4c 89 ef e8 94 b7 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 80 df 01 00 65 8b 15 3c 85 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880b5a77bb8 EFLAGS: 00000093 RAX: ffff8880b5a62280 RBX: 0000000000000000 RCX: ffffffff81677d6c RDX: 0000000000000000 RSI: ffffffff81677d75 RDI: 0000000000000005 RBP: ffffffff8d3cd748 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff8d3cd740 R13: ffffffff881622a9 R14: ffff8880b5a77cc0 R15: ffffffff8d3cd748 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa7ec2a9000 CR3: 00000000a2351000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_hardirqs_on+0x45/0x210 syzkaller/managers/linux-4-19/kernel/kernel/trace/trace_preemptirq.c:26 __raw_spin_unlock_irqrestore syzkaller/managers/linux-4-19/kernel/./include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x79/0xe0 syzkaller/managers/linux-4-19/kernel/kernel/locking/spinlock.c:184 debug_object_free syzkaller/managers/linux-4-19/kernel/lib/debugobjects.c:651 [inline] debug_object_free+0x1c4/0x380 syzkaller/managers/linux-4-19/kernel/lib/debugobjects.c:624 destroy_timer_on_stack syzkaller/managers/linux-4-19/kernel/kernel/time/timer.c:753 [inline] schedule_timeout+0x4e6/0xfe0 syzkaller/managers/linux-4-19/kernel/kernel/time/timer.c:1822 rcu_gp_kthread+0xdad/0x21c0 syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree.c:2202 kthread+0x33f/0x460 syzkaller/managers/linux-4-19/kernel/kernel/kthread.c:259 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:415