rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=8f9/1/0x4000000000000000 softirq=13135/13135 fqs=0 
	(detected by 1, t=10502 jiffies, g=17549, q=1339)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5477 Comm: syz-executor.1 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:perf_event_output_forward+0x91/0x310 kernel/events/core.c:7745
Code: 81 48 8d 4c 24 20 48 c1 e9 03 c7 04 19 f1 f1 f1 f1 48 b8 f2 f2 f2 f2 f2 00 f3 f3 48 89 44 19 0b 48 89 4c 24 10 c6 44 19 13 f3 <e8> aa fb de ff ba 38 00 00 00 4c 89 f7 4d 89 e6 31 f6 e8 08 c2 28
RSP: 0018:ffffc90003086b40 EFLAGS: 00000806
RAX: f3f300f2f2f2f2f2 RBX: dffffc0000000000 RCX: 1ffff92000610d6c
RDX: ffff8880b9a350d0 RSI: ffffc90003086d40 RDI: ffff88807dfc1d88
RBP: ffffc90003086c48 R08: ffffffff81a1e4ba R09: ffffed100fbf843e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90003086be0
R13: ffff88807dfc1d88 R14: ffffc90003086b80 R15: ffffc90003086d40
FS:  00007fa99b7336c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556cdd8f8 CR3: 000000001d38f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __perf_event_overflow+0x35d/0x530 kernel/events/core.c:9441
 perf_tp_event+0x363/0xc40 kernel/events/core.c:9973
 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9947
 perf_trace_preemptirq_template+0x31d/0x430 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x10e/0x190 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 5d a7 96 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a
RSP: 0018:ffffc900030871a0 EFLAGS: 00000206
RAX: ad3c7310214f9e00 RBX: 1ffff92000610e3c RCX: ffffffff81631958
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: ffffffff8ad8f380
RBP: ffffc90003087278 R08: dffffc0000000000 R09: fffffbfff1f7ec1a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8c923b00
R13: ffff8880246bdd98 R14: ffffc900030871e0 R15: 1ffff92000610e38
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 mod_objcg_mlstate+0x27d/0x330 mm/memcontrol.c:832
 mod_objcg_state+0x301/0x630 mm/memcontrol.c:3140
 memcg_slab_post_alloc_hook mm/slab.h:322 [inline]
 slab_post_alloc_hook+0x2ae/0x380 mm/slab.h:526
 slab_alloc_node mm/slub.c:3220 [inline]
 __kmalloc_node+0x151/0x390 mm/slub.c:4451
 kmalloc_node include/linux/slab.h:614 [inline]
 kvmalloc_node+0x80/0x140 mm/util.c:619
 kvmalloc include/linux/mm.h:805 [inline]
 kvzalloc include/linux/mm.h:813 [inline]
 netif_alloc_netdev_queues net/core/dev.c:10212 [inline]
 alloc_netdev_mqs+0x611/0xc10 net/core/dev.c:10898
 __ip_tunnel_create+0x205/0x370 net/ipv4/ip_tunnel.c:254
 ip_tunnel_init_net+0x21f/0x700 net/ipv4/ip_tunnel.c:1097
 ops_init+0x356/0x600 net/core/net_namespace.c:135
 setup_net+0x358/0x9e0 net/core/net_namespace.c:329
 copy_net_ns+0x395/0x5d0 net/core/net_namespace.c:473
 create_new_namespaces+0x425/0x7a0 kernel/nsproxy.c:110
 copy_namespaces+0x365/0x3b0 kernel/nsproxy.c:178
 copy_process+0x1841/0x3ef0 kernel/fork.c:2209
 kernel_clone+0x210/0x960 kernel/fork.c:2604
 __do_sys_clone kernel/fork.c:2721 [inline]
 __se_sys_clone kernel/fork.c:2705 [inline]
 __x64_sys_clone+0x23f/0x290 kernel/fork.c:2705
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa99d1c0ea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007fa99b733078 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fa99d2eef80 RCX: 00007fa99d1c0ea9
RDX: 0000000020000080 RSI: 0000000000000000 RDI: 00000000ca882400
RBP: 00007fa99d20d4a4 R08: 0000000020001200 R09: 0000000020001200
R10: 0000000020000140 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa99d2eef80 R15: 00007ffef3fd9348
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g17549 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=5107
rcu: rcu_preempt kthread starved for 10502 jiffies! g17549 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:I stack:27000 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5477 Comm: syz-executor.1 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:check_preemption_disabled+0x4/0x110 lib/smp_processor_id.c:13
Code: c7 40 fa 92 8a e8 2c 01 00 00 65 ff 0d c1 a2 e5 75 5b c3 cc cc cc 48 c7 c7 20 f3 d8 8a 48 c7 c6 60 f3 d8 8a eb 00 41 57 41 56 <41> 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65
RSP: 0018:ffffc900030869c8 EFLAGS: 00000006
RAX: 0000000000006801 RBX: 0000000000000000 RCX: 0000000000000002
RDX: ffff8880246bd940 RSI: ffffffff8ad8f360 RDI: ffffffff8ad8f320
RBP: 0000000000000001 R08: ffffffff8101331d R09: fffffbfff1f7ec19
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90003086be0
R13: dffffc0000000000 R14: ffff8880b9a350d0 R15: dffffc0000000000
FS:  00007fa99b7336c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556cdd8f8 CR3: 000000001d38f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 rcu_lockdep_current_cpu_online+0x35/0x130 kernel/rcu/tree.c:1171
 rcu_read_lock_held_common kernel/rcu/update.c:112 [inline]
 rcu_read_lock_held+0x1a/0x40 kernel/rcu/update.c:309
 perf_get_guest_cbs include/linux/perf_event.h:1273 [inline]
 perf_misc_flags+0x56/0x1b0 arch/x86/events/core.c:2961
 perf_prepare_sample+0x13a/0x1ce0 kernel/events/core.c:7546
 __perf_event_output kernel/events/core.c:7726 [inline]
 perf_event_output_forward+0x199/0x310 kernel/events/core.c:7746
 __perf_event_overflow+0x35d/0x530 kernel/events/core.c:9441
 perf_tp_event+0x363/0xc40 kernel/events/core.c:9973
 perf_trace_run_bpf_submit+0xf7/0x1d0 kernel/events/core.c:9947
 perf_trace_preemptirq_template+0x31d/0x430 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x10e/0x190 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:rcu_read_unlock_special+0x84/0x520 kernel/rcu/tree_plugin.h:671
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 17 66 41 c7 44 17 09 f3 f3 41 c6 44 17 0b f3 65 44 8b 25 5d a7 96 7e 41 f7 c4 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 66 42 c7 44 3a
RSP: 0018:ffffc900030871a0 EFLAGS: 00000206
RAX: ad3c7310214f9e00 RBX: 1ffff92000610e3c RCX: ffffffff81631958
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: ffffffff8ad8f380
RBP: ffffc90003087278 R08: dffffc0000000000 R09: fffffbfff1f7ec1a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8c923b00
R13: ffff8880246bdd98 R14: ffffc900030871e0 R15: 1ffff92000610e38
 __rcu_read_unlock+0x92/0x100 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:771 [inline]
 mod_objcg_mlstate+0x27d/0x330 mm/memcontrol.c:832
 mod_objcg_state+0x301/0x630 mm/memcontrol.c:3140
 memcg_slab_post_alloc_hook mm/slab.h:322 [inline]
 slab_post_alloc_hook+0x2ae/0x380 mm/slab.h:526
 slab_alloc_node mm/slub.c:3220 [inline]
 __kmalloc_node+0x151/0x390 mm/slub.c:4451
 kmalloc_node include/linux/slab.h:614 [inline]
 kvmalloc_node+0x80/0x140 mm/util.c:619
 kvmalloc include/linux/mm.h:805 [inline]
 kvzalloc include/linux/mm.h:813 [inline]
 netif_alloc_netdev_queues net/core/dev.c:10212 [inline]
 alloc_netdev_mqs+0x611/0xc10 net/core/dev.c:10898
 __ip_tunnel_create+0x205/0x370 net/ipv4/ip_tunnel.c:254
 ip_tunnel_init_net+0x21f/0x700 net/ipv4/ip_tunnel.c:1097
 ops_init+0x356/0x600 net/core/net_namespace.c:135
 setup_net+0x358/0x9e0 net/core/net_namespace.c:329
 copy_net_ns+0x395/0x5d0 net/core/net_namespace.c:473
 create_new_namespaces+0x425/0x7a0 kernel/nsproxy.c:110
 copy_namespaces+0x365/0x3b0 kernel/nsproxy.c:178
 copy_process+0x1841/0x3ef0 kernel/fork.c:2209
 kernel_clone+0x210/0x960 kernel/fork.c:2604
 __do_sys_clone kernel/fork.c:2721 [inline]
 __se_sys_clone kernel/fork.c:2705 [inline]
 __x64_sys_clone+0x23f/0x290 kernel/fork.c:2705
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa99d1c0ea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007fa99b733078 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fa99d2eef80 RCX: 00007fa99d1c0ea9
RDX: 0000000020000080 RSI: 0000000000000000 RDI: 00000000ca882400
RBP: 00007fa99d20d4a4 R08: 0000000020001200 R09: 0000000020001200
R10: 0000000020000140 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa99d2eef80 R15: 00007ffef3fd9348
 </TASK>