Bluetooth: hci7: command 0x041b tx timeout Bluetooth: hci7: command 0x040f tx timeout Bluetooth: hci7: command 0x0419 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.3:9668 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.3 D29248 9668 8116 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 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 grab_super+0xa2/0x350 fs/super.c:383 sget_userns+0x352/0xcd0 fs/super.c:511 sget+0x102/0x140 fs/super.c:570 nilfs_mount+0x3c8/0xe70 fs/nilfs2/super.c:1305 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:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7efc71fef279 Code: Bad RIP value. RSP: 002b:00007efc70922168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007efc72102120 RCX: 00007efc71fef279 RDX: 0000000020000500 RSI: 00000000200002c0 RDI: 0000000020000080 RBP: 00007efc720492e9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5c4cabaf R14: 00007efc70922300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 00000000d5bc8030 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7825: #0: 00000000bedcb8b3 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 2 locks held by syz-executor.3/9663: 2 locks held by syz-executor.3/9668: #0: 00000000bf7eef73 (&bdev->bd_fsfreeze_mutex){+.+.}, at: nilfs_mount+0x35e/0xe70 fs/nilfs2/super.c:1299 #1: 0000000010738d36 (&type->s_umount_key#92){+.+.}, at: grab_super+0xa2/0x350 fs/super.c:383 1 lock held by syz-executor.3/11413: #0: 00000000bf7eef73 (&bdev->bd_fsfreeze_mutex){+.+.}, at: nilfs_mount+0x35e/0xe70 fs/nilfs2/super.c:1299 1 lock held by syz-executor.3/11871: #0: 00000000bf7eef73 (&bdev->bd_fsfreeze_mutex){+.+.}, at: nilfs_mount+0x35e/0xe70 fs/nilfs2/super.c:1299 1 lock held by syz-executor.3/11873: #0: 00000000bf7eef73 (&bdev->bd_fsfreeze_mutex){+.+.}, at: nilfs_mount+0x35e/0xe70 fs/nilfs2/super.c:1299 ============================================= 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 07/22/2022 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 07/22/2022 Workqueue: bat_events batadv_nc_worker RIP: 0010:task_irq_context kernel/locking/lockdep.c:3039 [inline] RIP: 0010:__lock_acquire+0x468/0x3ff0 kernel/locking/lockdep.c:3361 Code: 54 08 00 00 49 8d bd 74 08 00 00 ba 02 00 00 00 48 89 f9 85 c0 0f 45 c2 48 c1 e9 03 48 ba 00 00 00 00 00 fc ff df 0f b6 0c 11 <48> 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 ec 26 00 00 41 RSP: 0018:ffff8880b50479f8 EFLAGS: 00000803 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 1ffff11016a079da RDI: ffff8880b503ce74 RBP: 0000000000000002 R08: 000000000000002e R09: 0000000000000002 R10: ffff8880b503ced8 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880b503c600 R14: ffff8880b503cef0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb905f5c000 CR3: 00000000af755000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] batadv_nc_process_nc_paths.part.0+0xec/0x3d0 net/batman-adv/network-coding.c:698 batadv_nc_process_nc_paths net/batman-adv/network-coding.c:690 [inline] batadv_nc_worker+0x9bb/0xd50 net/batman-adv/network-coding.c:739 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