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.4:1503 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 D26600 1503 8163 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 perf_event_free_task+0x4cf/0x660 kernel/events/core.c:11372 copy_process.part.0+0x3710/0x8260 kernel/fork.c:2137 copy_process kernel/fork.c:1710 [inline] _do_fork+0x22f/0xf30 kernel/fork.c:2219 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f546e264049 Code: Bad RIP value. RSP: 002b:00007f546cb76118 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f546e3771d0 RCX: 00007f546e264049 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f546e2be08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf706564f R14: 00007f546cb76300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1569: #0: 0000000030fa23bb (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7868: #0: 00000000a252f0ec (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 2 locks held by agetty/8042: #0: 00000000e5039bb1 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000000f45c7f6 (&tty->atomic_write_lock){+.+.}, at: tty_write_lock drivers/tty/tty_io.c:886 [inline] #1: 000000000f45c7f6 (&tty->atomic_write_lock){+.+.}, at: do_tty_write drivers/tty/tty_io.c:909 [inline] #1: 000000000f45c7f6 (&tty->atomic_write_lock){+.+.}, at: tty_write+0x24e/0x810 drivers/tty/tty_io.c:1044 2 locks held by agetty/8048: #0: 00000000f9aaf233 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000005e3190ae (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154 ============================================= NMI backtrace for cpu 1 CPU: 1 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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 54 Comm: kworker/u4:2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: (null) (phy10) RIP: 0010:worker_thread+0x5d4/0x1130 kernel/workqueue.c:2289 Code: 48 8b 04 24 49 c1 ee 03 48 c1 e8 03 48 01 e8 48 89 44 24 10 49 8d 04 2e 48 89 44 24 18 e8 74 37 24 00 48 8b 44 24 10 80 38 00 <0f> 85 7f 08 00 00 48 8b 44 24 18 4d 8b 77 50 80 38 00 4d 8d 66 f8 RSP: 0018:ffff8880b51a7e50 EFLAGS: 00000046 RAX: ffffed10277f8532 RBX: ffff8880b5b55328 RCX: ffffffff813e4ef4 RDX: 0000000000000000 RSI: ffffffff813e4dfc RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880b5b55300 R14: ffff88813bfc2d00 R15: ffff88813bfc2940 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000130 CR3: 00000000a3125000 CR4: 00000000003406f0 DR0: 0000000000000004 DR1: 0000000000010000 DR2: 0000000000000000 DR3: 000000000000d000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 48 8b 04 24 mov (%rsp),%rax 4: 49 c1 ee 03 shr $0x3,%r14 8: 48 c1 e8 03 shr $0x3,%rax c: 48 01 e8 add %rbp,%rax f: 48 89 44 24 10 mov %rax,0x10(%rsp) 14: 49 8d 04 2e lea (%r14,%rbp,1),%rax 18: 48 89 44 24 18 mov %rax,0x18(%rsp) 1d: e8 74 37 24 00 callq 0x243796 22: 48 8b 44 24 10 mov 0x10(%rsp),%rax 27: 80 38 00 cmpb $0x0,(%rax) * 2a: 0f 85 7f 08 00 00 jne 0x8af <-- trapping instruction 30: 48 8b 44 24 18 mov 0x18(%rsp),%rax 35: 4d 8b 77 50 mov 0x50(%r15),%r14 39: 80 38 00 cmpb $0x0,(%rax) 3c: 4d 8d 66 f8 lea -0x8(%r14),%r12