INFO: task syz-executor.0:22528 blocked for more than 143 seconds.
      Not tainted 5.7.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D28328 22528   7029 0x20020004
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
 lock_release+0x800/0x800 kernel/locking/lockdep.c:4689
 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
 __down_write kernel/locking/rwsem.c:1389 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1532
 atomic64_try_cmpxchg include/asm-generic/atomic-instrumented.h:1504 [inline]
 atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:442 [inline]
 __down_write kernel/locking/rwsem.c:1387 [inline]
 down_write+0xb2/0x150 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_socket+0xef/0x200 net/socket.c:1526
 move_addr_to_kernel+0x70/0x70 net/socket.c:195
 __do_sys_clock_gettime32 kernel/time/posix-timers.c:1176 [inline]
 __se_sys_clock_gettime32 kernel/time/posix-timers.c:1164 [inline]
 __ia32_sys_clock_gettime32+0x165/0x240 kernel/time/posix-timers.c:1164
 __x64_sys_clock_gettime32+0x240/0x240 kernel/time/posix-timers.c:1410
 __do_sys_socket net/socket.c:1535 [inline]
 __se_sys_socket net/socket.c:1533 [inline]
 __ia32_sys_socket+0x6f/0xb0 net/socket.c:1533
 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline]
 do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
INFO: task syz-executor.0:22555 blocked for more than 143 seconds.
      Not tainted 5.7.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D29888 22555   7029 0x20020004
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
 rwsem_optimistic_spin+0x550/0x550 include/linux/compiler.h:226
 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
 lock_release+0x800/0x800 kernel/locking/lockdep.c:4689
 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
 __down_write kernel/locking/rwsem.c:1389 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1532
 atomic64_try_cmpxchg include/asm-generic/atomic-instrumented.h:1504 [inline]
 atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:442 [inline]
 __down_write kernel/locking/rwsem.c:1387 [inline]
 down_write+0xb2/0x150 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_socket+0xef/0x200 net/socket.c:1526
 move_addr_to_kernel+0x70/0x70 net/socket.c:195
 __do_sys_clock_gettime32 kernel/time/posix-timers.c:1176 [inline]
 __se_sys_clock_gettime32 kernel/time/posix-timers.c:1164 [inline]
 __ia32_sys_clock_gettime32+0x165/0x240 kernel/time/posix-timers.c:1164
 __x64_sys_clock_gettime32+0x240/0x240 kernel/time/posix-timers.c:1410
 __do_sys_socket net/socket.c:1535 [inline]
 __se_sys_socket net/socket.c:1533 [inline]
 __ia32_sys_socket+0x6f/0xb0 net/socket.c:1533
 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline]
 do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 1143 Comm: khungtaskd Not tainted 5.7.0-rc6-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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:28 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:135 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:166 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/generic.c:184 [inline]
RIP: 0010:check_memory_region+0x43/0x190 mm/kasan/generic.c:193
Code: 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 0d 01 00 00 49 83 ea 01 48 89 fb 48 b8 00 00 00 00 00 fc ff df 4d 89 d3 <48> c1 eb 03 49 c1 eb 03 48 01 c3 49 01 c3 48 89 d8 49 8d 6b 01 49
RSP: 0018:ffffc90000dd7be0 EFLAGS: 00000082
RAX: dffffc0000000000 RBX: ffffffff8a8991c0 RCX: ffffffff815981db
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8a8991c0
RBP: 0000000000000001 R08: ffff8880a97e8580 R09: 0000000000000000
R10: ffffffff8a8991c7 R11: ffffffff8a8991c7 R12: ffffffff899beac0
R13: ffffffff87b700a6 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcefd0e8000 CR3: 000000008f811000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
 cpumask_test_cpu include/linux/cpumask.h:367 [inline]
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x18b/0x800 kernel/locking/lockdep.c:4951
 process_one_work+0x878/0x16a0 kernel/workqueue.c:2243
 lock_downgrade+0x840/0x840 kernel/locking/lockdep.c:4579
 lock_release+0x800/0x800 kernel/locking/lockdep.c:4689
 lock_downgrade+0x840/0x840 kernel/locking/lockdep.c:4579
 rcu_lock_release include/linux/rcupdate.h:213 [inline]
 rcu_read_unlock include/linux/rcupdate.h:655 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:411 [inline]
 batadv_nc_worker+0x21c/0x760 net/batman-adv/network-coding.c:718
 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268
 lock_release+0x800/0x800 kernel/locking/lockdep.c:4689
 pwq_dec_nr_in_flight+0x310/0x310 kernel/workqueue.c:1198
 rwlock_bug.part.0+0x90/0x90 include/linux/sched.h:1329
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 process_one_work+0x16a0/0x16a0 kernel/workqueue.c:2273
 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