INFO: task syz-executor.2:29370 blocked for more than 143 seconds.
      Not tainted 5.7.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2  D29864 29370   7410 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:3367 [inline]
 __schedule+0x937/0x1ff0 kernel/sched/core.c:4083
 __sched_text_start+0x8/0x8
 atomic_try_cmpxchg include/asm-generic/atomic-instrumented.h:694 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:78 [inline]
 do_raw_spin_lock+0x129/0x2e0 kernel/locking/spinlock_debug.c:113
 rwlock_bug.part.0+0x90/0x90 include/linux/sched.h:1329
 schedule+0xd0/0x2a0 kernel/sched/core.c:4158
 rwsem_down_write_slowpath+0x706/0xf90 kernel/locking/rwsem.c:1235
 rwsem_mark_wake+0x8d0/0x8d0 include/linux/compiler.h:199
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934
 register_netdevice_notifier+0x1e/0x270 net/core/dev.c:1729
 pcpu_region_overlap mm/percpu.c:564 [inline]
 pcpu_block_update_hint_alloc+0x742/0xb00 mm/percpu.c:877
 atomic64_cmpxchg include/asm-generic/atomic-instrumented.h:1463 [inline]
 atomic_long_cmpxchg_release include/asm-generic/atomic-long.h:424 [inline]
 __mutex_unlock_slowpath+0xe2/0x660 kernel/locking/mutex.c:1249
 wait_for_completion+0x270/0x270
 __down_write kernel/locking/rwsem.c:1389 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1532
 __down_write kernel/locking/rwsem.c:1389 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1532
 __down_timeout+0x2d0/0x2d0
 pcpu_alloc+0x128/0x13b0 mm/percpu.c:1740
 register_netdevice_notifier+0x1e/0x270 net/core/dev.c:1729
 raw_init+0x296/0x340 net/can/raw.c:339
 raw_sock_no_ioctlcmd+0x10/0x10 net/can/raw.c:843
 can_create+0x27c/0x500 net/can/af_can.c:168
 __sock_create+0x3cb/0x730 net/socket.c:1433
 sock_create net/socket.c:1484 [inline]
 __sys_socketpair+0x1be/0x560 net/socket.c:1584
 __ia32_sys_socket+0xb0/0xb0 net/socket.c:1533
 __do_sys_clock_gettime kernel/time/posix-timers.c:1094 [inline]
 __se_sys_clock_gettime kernel/time/posix-timers.c:1082 [inline]
 __x64_sys_clock_gettime+0x165/0x240 kernel/time/posix-timers.c:1082
 __ia32_sys_clock_settime+0x260/0x260 kernel/time/posix-timers.c:1410
 __do_sys_socketpair net/socket.c:1637 [inline]
 __se_sys_socketpair net/socket.c:1634 [inline]
 __x64_sys_socketpair+0x93/0xf0 net/socket.c:1634
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 1144 Comm: khungtaskd Not tainted 5.7.0-rc5-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+0x188/0x20d lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
 lapic_can_unplug_cpu.cold+0x3b/0x3b
 nmi_trigger_cpumask_backtrace+0x231/0x27e lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0xa8c/0x1010 kernel/hung_task.c:289
 reset_hung_task_detector+0x30/0x30 kernel/hung_task.c:243
 kthread+0x388/0x470 kernel/kthread.c:268
 kthread_mod_delayed_work+0x1a0/0x1a0 kernel/kthread.c:1090
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4307 Comm: systemd-journal Not tainted 5.7.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vfs_read+0x1f0/0x420 fs/read_write.c:463
Code: 0b e9 ec fe ff ff e8 9f 8e b7 ff 48 8b 34 24 4c 89 e1 48 89 ef 48 81 fb 00 f0 ff 7f ba 00 f0 ff 7f 48 0f 46 d3 e8 10 fd ff ff <31> ff 49 89 c6 48 89 c6 e8 03 90 b7 ff 4d 85 f6 7f 3d e8 69 8e b7
RSP: 0018:ffffc90001577e48 EFLAGS: 00000293
RAX: 000000000000004d RBX: 0000000000002000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81bba4fe RDI: ffff888092380070
RBP: ffff888092e41540 R08: ffff8880921b4200 R09: ffffed101247000f
R10: ffff888092380077 R11: ffffed101247000e R12: ffffc90001577eb0
R13: ffff888092e415c4 R14: 0000000000000000 R15: 00007ffffffff000
FS:  00007fbbd70518c0(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbbd3042000 CR3: 0000000093cd5000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 ksys_read+0x12d/0x250 fs/read_write.c:588
 kernel_write+0x120/0x120 arch/x86/include/asm/uaccess.h:31
 trace_hardirqs_off_caller+0x55/0x230 kernel/trace/trace_preemptirq.c:73
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x7fbbd65e1210
Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24
RSP: 002b:00007ffc53a625f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ffc53a65070 RCX: 00007fbbd65e1210
RDX: 0000000000002000 RSI: 00007ffc53a62e70 RDI: 0000000000000009
RBP: 0000000000000000 R08: 0000000000000008 R09: 000055bd4c4277b8
R10: 000055bd4c427780 R11: 0000000000000246 R12: 00007ffc53a62e70
R13: 00007ffc53a64fc8 R14: 000055bd4af32958 R15: 0005a61ad1e9be15