ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 Bluetooth: hci0: command 0x0406 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.2:16805 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28408 16805 12277 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_dentry_revalidate+0x477/0x9f0 fs/fuse/dir.c:219 d_revalidate fs/namei.c:767 [inline] lookup_open+0x493/0x1a20 fs/namei.c:3155 do_last fs/namei.c:3327 [inline] path_openat+0x1804/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fbc42ea2059 Code: Bad RIP value. RSP: 002b:00007fbc417f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fbc42fb5030 RCX: 00007fbc42ea2059 RDX: 0000000000000000 RSI: 0000000020002040 RDI: ffffffffffffff9c RBP: 00007fbc42efc08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcfbaf3d8f R14: 00007fbc417f6300 R15: 0000000000022000 Showing all locks held in the system: 3 locks held by kworker/u4:1/23: #0: 00000000cf293ab2 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9702 [inline] #0: 00000000cf293ab2 (&rq->lock){-.-.}, at: pick_next_task_fair+0x556/0x1570 kernel/sched/fair.c:6841 #1: 00000000c6b451d6 (rcu_read_lock){....}, at: cpu_of kernel/sched/sched.h:923 [inline] #1: 00000000c6b451d6 (rcu_read_lock){....}, at: __update_idle_core+0x39/0x3e0 kernel/sched/fair.c:6057 #2: 00000000cf293ab2 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #2: 00000000cf293ab2 (&rq->lock){-.-.}, at: ttwu_queue kernel/sched/core.c:1841 [inline] #2: 00000000cf293ab2 (&rq->lock){-.-.}, at: try_to_wake_up+0x6d0/0x1050 kernel/sched/core.c:2052 1 lock held by khungtaskd/1570: #0: 00000000c6b451d6 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 2 locks held by agetty/7819: #0: 00000000c9c847c1 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000052d76a90 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 1 lock held by syz-executor.2/16805: #0: 000000001d38b8a7 (&type->i_mutex_dir_key#8){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 000000001d38b8a7 (&type->i_mutex_dir_key#8){.+.+}, at: do_last fs/namei.c:3326 [inline] #0: 000000001d38b8a7 (&type->i_mutex_dir_key#8){.+.+}, at: path_openat+0x17ec/0x2df0 fs/namei.c:3537 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:__preempt_count_add arch/x86/include/asm/preempt.h:76 [inline] RIP: 0010:rcu_read_lock_sched_notrace include/linux/rcupdate.h:749 [inline] RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline] RIP: 0010:lock_release+0x5b0/0x8b0 kernel/locking/lockdep.c:3926 Code: 00 00 8b 05 c2 a7 eb 0b 85 c0 0f 85 1c fe ff ff 48 c7 c6 e0 4b 6a 88 48 c7 c7 40 19 6a 88 e8 bc 6d a7 06 0f 0b e9 02 fe ff ff <65> ff 05 a9 8f b6 7e 48 8b 05 9a 8b c3 09 e8 3d 4e 05 00 85 c0 74 RSP: 0018:ffff8880b5047c00 EFLAGS: 00000097 RAX: 0000000000000001 RBX: ffff8880b503c600 RCX: ffffffff87d8f371 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880b503ce84 RBP: ffffffff89f85fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11016a08f83 R13: ffffffff87d8f075 R14: 0000000000000220 R15: ffff8880a44a1c00 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6d4ece1020 CR3: 00000000926f1000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000b8fecd19 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:247 [inline] rcu_read_unlock include/linux/rcupdate.h:681 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:423 [inline] batadv_nc_worker+0x66c/0xd50 net/batman-adv/network-coding.c:730 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 8b 05 c2 a7 eb 0b mov 0xbeba7c2(%rip),%eax # 0xbeba7ca 8: 85 c0 test %eax,%eax a: 0f 85 1c fe ff ff jne 0xfffffe2c 10: 48 c7 c6 e0 4b 6a 88 mov $0xffffffff886a4be0,%rsi 17: 48 c7 c7 40 19 6a 88 mov $0xffffffff886a1940,%rdi 1e: e8 bc 6d a7 06 callq 0x6a76ddf 23: 0f 0b ud2 25: e9 02 fe ff ff jmpq 0xfffffe2c * 2a: 65 ff 05 a9 8f b6 7e incl %gs:0x7eb68fa9(%rip) # 0x7eb68fda <-- trapping instruction 31: 48 8b 05 9a 8b c3 09 mov 0x9c38b9a(%rip),%rax # 0x9c38bd2 38: e8 3d 4e 05 00 callq 0x54e7a 3d: 85 c0 test %eax,%eax 3f: 74 .byte 0x74