Bluetooth: hci4: command 0x0406 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.4:18682 blocked for more than 140 seconds. Not tainted 4.19.189-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29440 18682 14666 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 request_wait_answer+0x3dc/0x750 fs/fuse/dev.c:485 __fuse_request_send+0x123/0x1c0 fs/fuse/dev.c:505 fuse_simple_request+0x2e6/0x820 fs/fuse/dev.c:576 fuse_do_getattr+0x230/0xc50 fs/fuse/dir.c:927 fuse_update_get_attr fs/fuse/dir.c:960 [inline] fuse_getattr+0x261/0x2e0 fs/fuse/dir.c:1838 vfs_getattr_nosec+0xff/0x160 fs/stat.c:79 vfs_getattr fs/stat.c:116 [inline] vfs_statx+0x15a/0x210 fs/stat.c:189 vfs_stat include/linux/fs.h:3132 [inline] __do_sys_newstat fs/stat.c:337 [inline] __se_sys_newstat+0x96/0x120 fs/stat.c:333 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f3c45728188 EFLAGS: 00000246 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200004c0 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe13deb78f R14: 00007f3c45728300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000007f548412 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7807: #0: 0000000058a0a8ee (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 4 locks held by rs:main Q:Reg/7808: #0: 00000000f3967b94 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9701 [inline] #0: 00000000f3967b94 (&rq->lock){-.-.}, at: pick_next_task_fair+0x556/0x1570 kernel/sched/fair.c:6840 #1: 000000007f548412 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 000000007f548412 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 #2: 00000000b84862ba (&sb->s_type->i_mutex_key#10){++++}, at: inode_trylock include/linux/fs.h:768 [inline] #2: 00000000b84862ba (&sb->s_type->i_mutex_key#10){++++}, at: ext4_file_write_iter+0x21f/0xf20 fs/ext4/file.c:238 #3: 000000007b5586d5 (&(&ei->i_raw_lock)->rlock){+.+.}, at: spin_lock include/linux/spinlock.h:329 [inline] #3: 000000007b5586d5 (&(&ei->i_raw_lock)->rlock){+.+.}, at: ext4_do_update_inode fs/ext4/inode.c:5275 [inline] #3: 000000007b5586d5 (&(&ei->i_raw_lock)->rlock){+.+.}, at: ext4_mark_iloc_dirty+0x23a/0x2b30 fs/ext4/inode.c:5919 2 locks held by kworker/u4:11/13103: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8099 Comm: syz-fuzzer Not tainted 4.19.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hrtimer_nanosleep+0x2bf/0x570 kernel/time/hrtimer.c:1780 Code: c7 44 24 0c 00 00 00 00 48 8b 84 24 c0 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 7b 02 00 00 48 81 c4 c8 00 00 00 4c 89 f0 5b <5d> 41 5c 41 5d 41 5e 41 5f c3 e8 c2 2a 0e 00 31 ff 89 ee 49 c7 c6 RSP: 0018:ffff8880911cfe68 EFLAGS: 00000296 RAX: 0000000000000000 RBX: ffff888097c84400 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffed1012239fb4 R13: ffff8880911cfdd0 R14: 0000000000000000 R15: 000000000000c350 FS: 000000c00002e090(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f69b0f25000 CR3: 00000000aac12000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_nanosleep kernel/time/hrtimer.c:1797 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1784 [inline] __x64_sys_nanosleep+0x19d/0x220 kernel/time/hrtimer.c:1784 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46dabd Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0f 05 <48> 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc cc cc cc cc cc cc RSP: 002b:000000c00003df18 EFLAGS: 00000202 ORIG_RAX: 0000000000000023 RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 000000000046dabd RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000c00003df18 RBP: 000000c00003df28 R08: 00007ffd6e9bc000 R09: 0000008eb122fa13 R10: 00180c3acd632438 R11: 0000000000000202 R12: 000000000043b6a0 R13: 0000000000000008 R14: 0000000000b7de00 R15: 0000000002030000