ieee802154 phy1 wpan1: encryption failed: -22 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 kworker/1:2:3687 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. kworker/1:2 D25160 3687 2 0x80000000 Workqueue: ipv6_addrconf addrconf_verify_work 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 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4476 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 Showing all locks held in the system: 1 lock held by khungtaskd/1569: #0: 000000003b3bbd13 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 3 locks held by kworker/1:2/3687: #0: 000000004322b73e ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000074365b01 ((addr_chk_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000856286d6 (rtnl_mutex){+.+.}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4476 1 lock held by systemd-journal/4690: 3 locks held by kworker/u4:5/7215: 1 lock held by in:imklog/7778: 5 locks held by rs:main Q:Reg/7779: #0: 00000000508babdf (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 00000000508babdf (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 #1: 000000003b3bbd13 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 000000003b3bbd13 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 #2: 00000000d9d34dfd (&sb->s_type->i_mutex_key#10){++++}, at: inode_trylock include/linux/fs.h:768 [inline] #2: 00000000d9d34dfd (&sb->s_type->i_mutex_key#10){++++}, at: ext4_file_write_iter+0x21f/0xf20 fs/ext4/file.c:238 #3: 00000000887072ff (&(&ei->i_raw_lock)->rlock){+.+.}, at: spin_lock include/linux/spinlock.h:329 [inline] #3: 00000000887072ff (&(&ei->i_raw_lock)->rlock){+.+.}, at: ext4_do_update_inode fs/ext4/inode.c:5275 [inline] #3: 00000000887072ff (&(&ei->i_raw_lock)->rlock){+.+.}, at: ext4_mark_iloc_dirty+0x23a/0x2b30 fs/ext4/inode.c:5919 #4: 00000000894126bd (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: __set_page_dirty+0x28/0x3e0 fs/buffer.c:579 2 locks held by agetty/7808: #0: 000000008f65cbbf (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000014c954ce (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 4 locks held by kworker/u4:10/19595: #0: 000000008e93520f ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000093123020 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 0000000023834772 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521 #3: 00000000856286d6 (rtnl_mutex){+.+.}, at: ip6gre_exit_batch_net+0x82/0x6c0 net/ipv6/ip6_gre.c:1632 3 locks held by syz-executor.2/20937: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1569 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: 7215 Comm: kworker/u4:5 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:lockdep_hardirqs_off+0x55/0x2c0 kernel/locking/lockdep.c:2895 Code: 8b 1c 25 c0 df 01 00 38 d0 7c 08 84 d2 0f 85 02 02 00 00 8b 3d fc 94 fa 08 85 ff 0f 84 97 01 00 00 65 4c 8b 24 25 c0 df 01 00 <49> 8d bc 24 84 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 RSP: 0018:ffff88809aa17c00 EFLAGS: 00000002 RAX: 0000000000000003 RBX: ffff8880a013c340 RCX: 1ffffffff148be2c RDX: 0000000000000004 RSI: ffffffff8167adc4 RDI: 0000000000000001 RBP: ffffffff81392269 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a013c340 R13: ffffffff87d8da80 R14: 0000000000000003 R15: ffff88808bdee8c0 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0ca93b4250 CR3: 00000000a17dd000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __local_bh_enable_ip+0x119/0x270 kernel/softirq.c:171 spin_unlock_bh include/linux/spinlock.h:374 [inline] batadv_nc_purge_paths+0x22d/0x310 net/batman-adv/network-coding.c:482 batadv_nc_worker+0x6fa/0xd50 net/batman-adv/network-coding.c:731 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: 8b 1c 25 c0 df 01 00 mov 0x1dfc0,%ebx 7: 38 d0 cmp %dl,%al 9: 7c 08 jl 0x13 b: 84 d2 test %dl,%dl d: 0f 85 02 02 00 00 jne 0x215 13: 8b 3d fc 94 fa 08 mov 0x8fa94fc(%rip),%edi # 0x8fa9515 19: 85 ff test %edi,%edi 1b: 0f 84 97 01 00 00 je 0x1b8 21: 65 4c 8b 24 25 c0 df mov %gs:0x1dfc0,%r12 28: 01 00 * 2a: 49 8d bc 24 84 08 00 lea 0x884(%r12),%rdi <-- trapping instruction 31: 00 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 48 89 fa mov %rdi,%rdx 3f: 48 rex.W