INFO: task syz-executor.2:10549 can't die for more than 143 seconds.
task:syz-executor.2  state:R  running task     stack:25784 pid:10549 ppid:  8462 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4339 [inline]
 __schedule+0x916/0x23e0 kernel/sched/core.c:5147
 preempt_schedule_notrace+0x5b/0xd0 kernel/sched/core.c:5386
 preempt_schedule_notrace_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:36
 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:795 [inline]
 trace_lock_acquire include/trace/events/lock.h:13 [inline]
 lock_acquire+0x5a9/0x740 kernel/locking/lockdep.c:5483
 rcu_lock_acquire include/linux/rcupdate.h:267 [inline]
 rcu_read_lock include/linux/rcupdate.h:657 [inline]
 inet_twsk_purge+0x117/0x7c0 net/ipv4/inet_timewait_sock.c:268
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:178
 setup_net+0x639/0xa30 net/core/net_namespace.c:356
 copy_net_ns+0x31e/0x760 net/core/net_namespace.c:474
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 copy_namespaces+0x385/0x440 kernel/nsproxy.c:178
 copy_process+0x2c62/0x7120 kernel/fork.c:2119
 kernel_clone+0xe7/0xab0 kernel/fork.c:2503
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2620
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
RSP: 002b:00007f7169797188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 00000000004665f9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 00000000e1004d7c
RBP: 00000000004bfce1 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffc8bdc010f R14: 00007f7169797300 R15: 0000000000022000
INFO: task syz-executor.3:10561 can't die for more than 146 seconds.
task:syz-executor.3  state:R  running task     stack:26920 pid:10561 ppid:  8464 flags:0x00004006
Call Trace:
 context_switch kernel/sched/core.c:4339 [inline]
 __schedule+0x916/0x23e0 kernel/sched/core.c:5147
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5535
 irqentry_exit+0x31/0x80 kernel/entry/common.c:426
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:lock_acquire+0x1ef/0x740 kernel/locking/lockdep.c:5480
Code: 8b a7 7e 83 f8 01 0f 85 ee 03 00 00 9c 58 f6 c4 02 0f 85 d9 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000208f7a0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000411ef6 RCX: 000000007a8c2056
RDX: 1ffff1100505313f RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff902268a7
R10: fffffbfff2044d14 R11: 0000000000000000 R12: 0000000000000002
R13: ffffffff8bf797a0 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:267 [inline]
 rcu_read_lock include/linux/rcupdate.h:657 [inline]
 inet_twsk_purge+0x117/0x7c0 net/ipv4/inet_timewait_sock.c:268
 tcp_sk_exit_batch+0x1d/0xa0 net/ipv4/tcp_ipv4.c:2979
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:178
 setup_net+0x639/0xa30 net/core/net_namespace.c:356
 copy_net_ns+0x31e/0x760 net/core/net_namespace.c:474
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 copy_namespaces+0x385/0x440 kernel/nsproxy.c:178
 copy_process+0x2c62/0x7120 kernel/fork.c:2119
 kernel_clone+0xe7/0xab0 kernel/fork.c:2503
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2620
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
RSP: 002b:00007f237753b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 00000000004665f9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 00000000e1004d7c
RBP: 00000000004bfce1 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007fff1c12ecbf R14: 00007f237753b300 R15: 0000000000022000
INFO: task syz-executor.0:10538 can't die for more than 149 seconds.
task:syz-executor.0  state:D stack:24448 pid:10538 ppid:  8458 flags:0x00004006
Call Trace:
 context_switch kernel/sched/core.c:4339 [inline]
 __schedule+0x916/0x23e0 kernel/sched/core.c:5147
 schedule+0xcf/0x270 kernel/sched/core.c:5226
 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
 synchronize_rcu_expedited+0x5aa/0x620 kernel/rcu/tree_exp.h:837
INFO: task syz-executor.5:10547 can't die for more than 151 seconds.
task:syz-executor.5  state:R  running task     stack:24272 pid:10547 ppid:  8767 flags:0x00004006
Call Trace: