wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) INFO: task syz-executor.4:8189 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.4 D23688 8189 1 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 btrfs_tree_lock+0x4fe/0x810 fs/btrfs/locking.c:233 btrfs_init_new_buffer fs/btrfs/extent-tree.c:8145 [inline] btrfs_alloc_tree_block+0x9b1/0x15f0 fs/btrfs/extent-tree.c:8284 alloc_tree_block_no_bg_flush+0x1b6/0x250 fs/btrfs/ctree.c:1039 __btrfs_cow_block+0x3c7/0x10a0 fs/btrfs/ctree.c:1094 btrfs_cow_block+0x276/0x840 fs/btrfs/ctree.c:1557 btrfs_search_slot+0x66a/0x1ee0 fs/btrfs/ctree.c:2881 btrfs_update_root+0xc9/0x6b0 fs/btrfs/root-tree.c:134 commit_fs_roots+0x3b5/0x530 fs/btrfs/transaction.c:1286 btrfs_commit_transaction+0x8ca/0x2480 fs/btrfs/transaction.c:2178 btrfs_sync_fs+0x120/0x490 fs/btrfs/super.c:1279 __sync_filesystem fs/sync.c:39 [inline] sync_filesystem+0x1b5/0x250 fs/sync.c:67 generic_shutdown_super+0x70/0x370 fs/super.c:442 kill_anon_super+0x36/0x60 fs/super.c:1032 btrfs_kill_super+0x49/0x550 fs/btrfs/super.c:2221 deactivate_locked_super+0x94/0x160 fs/super.c:329 deactivate_super+0x174/0x1a0 fs/super.c:360 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f9031457517 Code: Bad RIP value. RSP: 002b:00007fff36fd7ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9031457517 RDX: 00007fff36fd7f9a RSI: 000000000000000a RDI: 00007fff36fd7f90 RBP: 00007fff36fd7f90 R08: 00000000ffffffff R09: 00007fff36fd7d60 R10: 00005555572e98e3 R11: 0000000000000246 R12: 00007f90314b0b24 R13: 00007fff36fd9050 R14: 00005555572e9810 R15: 00007fff36fd9090 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000008d89df4e (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 3 locks held by syz-executor.4/8189: #0: 00000000b76231dd (&type->s_umount_key#55){+.+.}, at: deactivate_super+0x16c/0x1a0 fs/super.c:359 #1: 000000006ee3e683 (&fs_info->reloc_mutex){+.+.}, at: btrfs_commit_transaction+0x80b/0x2480 fs/btrfs/transaction.c:2120 #2: 000000009663e160 (&fs_info->tree_log_mutex){+.+.}, at: btrfs_commit_transaction+0x8c2/0x2480 fs/btrfs/transaction.c:2176 1 lock held by btrfs-transacti/17687: #0: 000000004ca6129b (&fs_info->transaction_kthread_mutex){+.+.}, at: transaction_kthread+0xfa/0x490 fs/btrfs/disk-io.c:1765 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 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 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60