INFO: task syz-executor.5:25887 can't die for more than 143 seconds.
task:syz-executor.5  state:R  running task     stack:26056 pid:25887 ppid: 15994 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]
 rhashtable_free_and_destroy+0x23b/0x920 lib/rhashtable.c:1146
 ioam6_net_exit+0x44/0x70 net/ipv6/ioam6.c:918
 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:168
 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
 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178
 copy_process+0x2da7/0x75a0 kernel/fork.c:2245
 kernel_clone+0xe7/0xab0 kernel/fork.c:2633
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2750
 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: 0033:0x7f067ab89ae9
RSP: 002b:00007f06780ff188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f067ac9cf60 RCX: 00007f067ab89ae9
RDX: 0000000020000180 RSI: 0000000020000000 RDI: 0000000040000200
RBP: 00007f067abe3f6d R08: 0000000020000200 R09: 0000000000000000
R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfaa8bc8f R14: 00007f06780ff300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:25984 can't die for more than 146 seconds.
task:syz-executor.5  state:R  running task     stack:26296 pid:25984 ppid: 15994 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
 inet_twsk_purge+0xd0/0x7d0 net/ipv4/inet_timewait_sock.c:270
 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
 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178
 copy_process+0x2da7/0x75a0 kernel/fork.c:2245
 kernel_clone+0xe7/0xab0 kernel/fork.c:2633
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2750
 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: 0033:0x7f067ab89ae9
RSP: 002b:00007f06780de188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f067ac9d020 RCX: 00007f067ab89ae9
RDX: 0000000020000180 RSI: 0000000020000000 RDI: 0000000040000200
RBP: 00007f067abe3f6d R08: 0000000020000200 R09: 0000000000000000
R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdfaa8bc8f R14: 00007f06780de300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb83ba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6223:
 #0: ffff8880212ff770 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
1 lock held by syz-executor.5/25887:
5 locks held by syz-executor.5/25984:

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