rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: (detected by 0, t=10502 jiffies, g=6373, q=6 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294967482-4294956980), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g6373 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2020
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2222
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5135 Comm: syz-executor129 Not tainted 6.10.0-rc4-next-20240621-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:debug_object_deactivate+0xf4/0x390 lib/debugobjects.c:753
Code: 85 25 02 00 00 c7 44 24 54 00 00 00 00 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8 81 e0 42 fd 4c 89 6c 24 58 <49> 8d 7c 24 20 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8 64 e0
RSP: 0018:ffffc90000a18c40 EFLAGS: 00000046
RAX: 1ffff92000143193 RBX: ffffc90000a18c90 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000a18c98
RBP: ffffc90000a18d30 R08: ffffc90000a18c8f R09: 0000000000000000
R10: ffffc90000a18c80 R11: fffff52000143192 R12: ffffc90000a18c80
R13: ffff88807edfe0b0 R14: dffffc0000000000 R15: 1ffff9200014318c
FS: 000055557bfa13c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006b000 CR3: 000000007edfc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_hrtimer_deactivate kernel/time/hrtimer.c:428 [inline]
debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:484
__run_hrtimer kernel/time/hrtimer.c:1655 [inline]
__hrtimer_run_queues+0x305/0xd50 kernel/time/hrtimer.c:1751
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 1a 37 d7 f5 48 89 df e8 52 7a d8 f5 e8 ad dc 02 f6 fb bf 01 00 00 00 c2 42 ca f5 65 8b 05 03 89 6b 74 85 c0 74 06 5b c3 cc cc cc cc
RSP: 0018:ffffc9000363fc70 EFLAGS: 00000282
RAX: a24d17fa1387a300 RBX: ffff888029b50940 RCX: ffffffff947dc803
RDX: dffffc0000000000 RSI: ffffffff8bcac8a0 RDI: 0000000000000001
RBP: ffffc9000363fdb0 R08: ffffffff8faeddef R09: 1ffffffff1f5dbbd
R10: dffffc0000000000 R11: fffffbfff1f5dbbe R12: 0000000000000021
R13: 1ffff1100536a1bb R14: ffff888029b50dd8 R15: ffff888029b50940
spin_unlock_irq include/linux/spinlock.h:401 [inline]
get_signal+0x14dd/0x1740 kernel/signal.c:2912
arch_do_signal_or_restart+0x96/0x830 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbae79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fadcffbae79
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000004 R14: 00007ffe7c842200 R15: 00007ffe7c8421f0
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.417 msecs
DEBUG: waiting rtnl_mutex for 10524 jiffies.
task:syz-executor129 state:D stack:24080 pid:5111 tgid:5111 ppid:5108 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
register_netdev+0x13/0x50 net/core/dev.c:10510
ip6_tnl_init_net+0x238/0x2f0 net/ipv6/ip6_tunnel.c:2265
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: 00007ffe7c8421f0
DEBUG: waiting rtnl_mutex for 10601 jiffies.
task:syz-executor129 state:D stack:23864 pid:5110 tgid:5110 ppid:5107 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c8421f0
Showing all locks held in the system:
2 locks held by getty/4849:
#0: ffff88802f4a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by syz-executor129/5110:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor129/5111:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
3 locks held by syz-executor129/5116:
3 locks held by syz-executor129/5135:
#0: ffffc90000a18ca0 (net/core/rtnetlink.c:82){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: report_rtnl_holders+0x20/0x2d0 net/core/rtnetlink.c:95
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6688
=============================================
DEBUG: waiting rtnl_mutex for 10740 jiffies.
task:syz-executor129 state:D stack:24080 pid:5111 tgid:5111 ppid:5108 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
register_netdev+0x13/0x50 net/core/dev.c:10510
ip6_tnl_init_net+0x238/0x2f0 net/ipv6/ip6_tunnel.c:2265
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: 00007ffe7c8421f0
DEBUG: waiting rtnl_mutex for 10764 jiffies.
task:syz-executor129 state:D stack:23864 pid:5110 tgid:5110 ppid:5107 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c8421f0
Showing all locks held in the system:
2 locks held by getty/4849:
#0: ffff88802f4a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by syz-executor129/5110:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor129/5111:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
3 locks held by syz-executor129/5116:
3 locks held by syz-executor129/5135:
#0: ffffc90000a18c00 (net/core/rtnetlink.c:82){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: report_rtnl_holders+0x20/0x2d0 net/core/rtnetlink.c:95
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6688
1 lock held by syz-executor129/5137:
=============================================
DEBUG: waiting rtnl_mutex for 10900 jiffies.
task:syz-executor129 state:D stack:24080 pid:5111 tgid:5111 ppid:5108 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
register_netdev+0x13/0x50 net/core/dev.c:10510
ip6_tnl_init_net+0x238/0x2f0 net/ipv6/ip6_tunnel.c:2265
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: 00007ffe7c8421f0
DEBUG: waiting rtnl_mutex for 10924 jiffies.
task:syz-executor129 state:D stack:23864 pid:5110 tgid:5110 ppid:5107 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c8421f0
Showing all locks held in the system:
2 locks held by getty/4849:
#0: ffff88802f4a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by syz-executor129/5110:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor129/5111:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
3 locks held by syz-executor129/5116:
3 locks held by syz-executor129/5135:
#0: ffffc90000a18c00 (net/core/rtnetlink.c:82){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: report_rtnl_holders+0x20/0x2d0 net/core/rtnetlink.c:95
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6688
2 locks held by syz-executor129/5137:
=============================================
DEBUG: waiting rtnl_mutex for 11060 jiffies.
task:syz-executor129 state:D stack:24080 pid:5111 tgid:5111 ppid:5108 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
register_netdev+0x13/0x50 net/core/dev.c:10510
ip6_tnl_init_net+0x238/0x2f0 net/ipv6/ip6_tunnel.c:2265
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: 00007ffe7c8421f0
DEBUG: waiting rtnl_mutex for 11084 jiffies.
task:syz-executor129 state:D stack:23864 pid:5110 tgid:5110 ppid:5107 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c8421f0
Showing all locks held in the system:
2 locks held by getty/4849:
#0: ffff88802f4a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by syz-executor129/5110:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor129/5111:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
3 locks held by syz-executor129/5116:
3 locks held by syz-executor129/5135:
#0: ffffc9000363fb40 (net/core/rtnetlink.c:82){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: report_rtnl_holders+0x20/0x2d0 net/core/rtnetlink.c:95
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6688
=============================================
DEBUG: waiting rtnl_mutex for 11220 jiffies.
task:syz-executor129 state:D stack:24080 pid:5111 tgid:5111 ppid:5108 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
register_netdev+0x13/0x50 net/core/dev.c:10510
ip6_tnl_init_net+0x238/0x2f0 net/ipv6/ip6_tunnel.c:2265
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: 00007ffe7c8421f0
DEBUG: waiting rtnl_mutex for 11244 jiffies.
task:syz-executor129 state:D stack:23864 pid:5110 tgid:5110 ppid:5107 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c8421f0
Showing all locks held in the system:
2 locks held by getty/4849:
#0: ffff88802f4a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by syz-executor129/5110:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor129/5111:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
3 locks held by syz-executor129/5116:
3 locks held by syz-executor129/5135:
#0: ffffc9000363fb40 (net/core/rtnetlink.c:82){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: report_rtnl_holders+0x20/0x2d0 net/core/rtnetlink.c:95
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6688
1 lock held by syz-executor129/5137:
=============================================
DEBUG: waiting rtnl_mutex for 11388 jiffies.
task:syz-executor129 state:D stack:24080 pid:5111 tgid:5111 ppid:5108 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
register_netdev+0x13/0x50 net/core/dev.c:10510
ip6_tnl_init_net+0x238/0x2f0 net/ipv6/ip6_tunnel.c:2265
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: 00007ffe7c8421f0
DEBUG: waiting rtnl_mutex for 11412 jiffies.
task:syz-executor129 state:D stack:23864 pid:5110 tgid:5110 ppid:5107 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5249 [inline]
__schedule+0x17e8/0x4a20 kernel/sched/core.c:6594
__schedule_loop kernel/sched/core.c:6671 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6686
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6743
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
vti_init_net+0x2e/0xf0 net/ipv4/ip_vti.c:517
ops_init+0x359/0x610 net/core/net_namespace.c:139
setup_net+0x515/0xca0 net/core/net_namespace.c:343
copy_net_ns+0x4e2/0x7b0 net/core/net_namespace.c:508
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x619/0xc10 kernel/fork.c:3314
__do_sys_unshare kernel/fork.c:3385 [inline]
__se_sys_unshare kernel/fork.c:3383 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadcffbc2f7
RSP: 002b:00007ffe7c842188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe7c8421b8 RCX: 00007fadcffbc2f7
RDX: 00007fadcffbae79 RSI: 00007ffe7c842230 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c8421f0
Showing all locks held in the system:
2 locks held by getty/4849:
#0: ffff88802f4a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
2 locks held by syz-executor129/5110:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor129/5111:
#0: ffffffff8f5eb450 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f5f7d08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock_killable+0x113/0x200 net/core/rtnetlink.c:156
3 locks held by syz-executor129/5116:
3 locks held by syz-executor129/5135:
#0: ffffc90000a18c00 (net/core/rtnetlink.c:82){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#1: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: report_rtnl_holders+0x20/0x2d0 net/core/rtnetlink.c:95
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:333 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:845 [inline]
#2: ffffffff8e3357a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6688
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