INFO: task syz-executor.4:8674 can't die for more than 143 seconds.
task:syz-executor.4  state:R  running task     stack:26848 pid: 8674 ppid: 16836 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4984 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6265
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6431
 __cond_resched+0x13/0x20 kernel/sched/core.c:8144
 _cond_resched include/linux/sched.h:2025 [inline]
 inet_twsk_purge+0xed/0x7d0 net/ipv4/inet_timewait_sock.c:267
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 setup_net+0x639/0xa30 net/core/net_namespace.c:349
 copy_net_ns+0x318/0x760 net/core/net_namespace.c:470
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:226
 ksys_unshare+0x445/0x920 kernel/fork.c:3125
 __do_sys_unshare kernel/fork.c:3196 [inline]
 __se_sys_unshare kernel/fork.c:3194 [inline]
 __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3194
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f87f4fc4ae9
RSP: 002b:00007f87f253a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f87f50d7f60 RCX: 00007f87f4fc4ae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f87f501ef25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1da91d1f R14: 00007f87f253a300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.3:8703 can't die for more than 147 seconds.
task:syz-executor.3  state:R  running task     stack:26848 pid: 8703 ppid: 11229 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4984 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6265
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6431
 rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
 rcu_read_lock include/linux/rcupdate.h:688 [inline]
 inet_twsk_purge+0x117/0x7d0 net/ipv4/inet_timewait_sock.c:268
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 setup_net+0x639/0xa30 net/core/net_namespace.c:349
 copy_net_ns+0x318/0x760 net/core/net_namespace.c:470
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:226
 ksys_unshare+0x445/0x920 kernel/fork.c:3125
 __do_sys_unshare kernel/fork.c:3196 [inline]
 __se_sys_unshare kernel/fork.c:3194 [inline]
 __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3194
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1b6e8caae9
RSP: 002b:00007f1b6be40188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f1b6e9ddf60 RCX: 00007f1b6e8caae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f1b6e924f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6160c91f R14: 00007f1b6be40300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:8708 can't die for more than 151 seconds.
task:syz-executor.2  state:R  running task     stack:26760 pid: 8708 ppid: 18761 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4984 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6265
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6431
 __cond_resched+0x13/0x20 kernel/sched/core.c:8144
 _cond_resched include/linux/sched.h:2025 [inline]
 inet_twsk_purge+0xed/0x7d0 net/ipv4/inet_timewait_sock.c:267
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 setup_net+0x639/0xa30 net/core/net_namespace.c:349
 copy_net_ns+0x318/0x760 net/core/net_namespace.c:470
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:226
 ksys_unshare+0x445/0x920 kernel/fork.c:3125
 __do_sys_unshare kernel/fork.c:3196 [inline]
 __se_sys_unshare kernel/fork.c:3194 [inline]
 __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3194
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f66f9db1ae9
RSP: 002b:00007f66f7327188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f66f9ec4f60 RCX: 00007f66f9db1ae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f66f9e0bf25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdc7ad2c0f R14: 00007f66f7327300 R15: 0000000000022000
 </TASK>