ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout INFO: task syz-executor.5:13594 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D26912 13594 8138 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 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:115 kthread_stop+0x109/0x6b0 kernel/kthread.c:588 ext4_fill_super+0x7911/0xc7f0 fs/ext4/super.c:4638 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x113c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x467afa Code: Bad RIP value. RSP: 002b:00007fa8da9ebfa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000380 RCX: 0000000000467afa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fa8da9ec000 RBP: 00007fa8da9ec040 R08: 00007fa8da9ec040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fa8da9ec000 R15: 00000000200002c0 Showing all locks held in the system: 1 lock held by khungtaskd/1569: #0: 000000002ac4c7ed (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7809: #0: 00000000209c0599 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by rs:main Q:Reg/7810: #0: 00000000347def9b (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline] #0: 00000000347def9b (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 #1: 000000002ac4c7ed (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 000000002ac4c7ed (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 #2: 000000009ff54ee0 (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_trylock include/linux/fs.h:768 [inline] #2: 000000009ff54ee0 (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x21f/0xf20 fs/ext4/file.c:238 1 lock held by syz-executor.5/13594: #0: 00000000caac4b08 (&type->s_umount_key#25/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 00000000caac4b08 (&type->s_umount_key#25/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1569 Comm: khungtaskd Not tainted 4.19.195-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: 13460 Comm: kworker/u4:9 Not tainted 4.19.195-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:arch_local_irq_disable arch/x86/include/asm/paravirt.h:794 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:807 [inline] RIP: 0010:lock_release+0xe5/0x8b0 kernel/locking/lockdep.c:3923 Code: 00 0f 85 c3 06 00 00 48 83 3d f6 39 a6 08 00 0f 84 1b 05 00 00 9c 58 0f 1f 44 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 04 24 <48> c7 c0 50 82 f1 89 48 c1 e8 03 80 3c 10 00 0f 85 7a 06 00 00 48 RSP: 0018:ffff8880476f7c00 EFLAGS: 00000286 RAX: 0000000000000286 RBX: ffff8880495f6200 RCX: ffffffff87d81641 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880495f6a84 RBP: ffffffff89f85ee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11008edef83 R13: ffffffff87d81345 R14: 000000000000025c R15: ffff8880a4b87000 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e1f257000 CR3: 0000000092f50000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 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