rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-....: (1 GPs behind) idle=9cd/1/0x4000000000000002 softirq=31116/31117 fqs=5238 
	(detected by 0, t=10502 jiffies, g=40469, q=987)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11078 Comm: syz.3.1583 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__lock_release kernel/locking/lockdep.c:5329 [inline]
RIP: 0010:lock_release+0x2a3/0x8a0 kernel/locking/lockdep.c:5643
Code: 41 81 c7 00 00 f0 ff 42 0f b6 04 2b 84 c0 0f 85 bc 04 00 00 41 89 3e 45 85 ff 4c 8b 7c 24 20 0f 85 9f 02 00 00 48 8b 44 24 40 <42> 0f b6 04 28 84 c0 0f 85 73 04 00 00 48 8b 04 24 89 10 4c 89 e0
RSP: 0018:ffffc90000dd09e0 EFLAGS: 00000083
RAX: 1ffff1100ba91515 RBX: 1ffff1100ba91524 RCX: 0000000000000001
RDX: 0000000000000002 RSI: ffffffff8c31eb20 RDI: ffff88805d48a900
RBP: ffffc90000dd0af0 R08: ffffffff8d89f02f R09: 1ffffffff1b13e05
R10: dffffc0000000000 R11: fffffbfff1b13e06 R12: ffff88805d48a900
R13: dffffc0000000000 R14: ffff88805d48a920 R15: 0000000000000046
FS:  00007f6a5a6b06c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005499e000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_read_unlock include/linux/rcupdate.h:773 [inline]
 BPF_PROG_RUN_ARRAY include/linux/bpf.h:1444 [inline]
 trace_call_bpf+0x4fe/0x5b0 kernel/trace/bpf_trace.c:127
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10016
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 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:713
RIP: 0010:ffs arch/x86/include/asm/bitops.h:297 [inline]
RIP: 0010:handle_softirqs+0x1a9/0x830 kernel/softirq.c:564
Code: 24 78 44 89 64 24 28 0f b7 db 48 c7 c7 00 10 2a 8a e8 2b 89 73 08 65 66 c7 05 51 47 ba 7e 00 00 e8 9c 0e 36 00 fb 89 5c 24 34 <b8> ff ff ff ff 0f bc 44 24 34 41 89 c5 41 ff c5 0f 85 d2 00 00 00
RSP: 0018:ffffc90000dd0e20 EFLAGS: 00000282
RAX: b09ceafd0b6b5800 RBX: 0000000000000200 RCX: b09ceafd0b6b5800
RDX: dffffc0000000000 RSI: ffffffff8a2b2800 RDI: ffffffff8a79fe00
RBP: ffffc90000dd0f30 R08: ffffffff901d50cf R09: 1ffffffff203aa19
R10: dffffc0000000000 R11: fffffbfff203aa1a R12: 000000000000000a
R13: 0000000000000000 R14: ffff88805d489dc0 R15: dffffc0000000000
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__rcu_read_unlock+0x73/0xd0 kernel/rcu/tree_plugin.h:422
Code: 84 c0 75 5f 41 83 3e 00 75 20 43 0f b6 04 3c 84 c0 75 3a 8b 03 3d 00 00 00 40 73 0a 5b 41 5c 41 5d 41 5e 41 5f c3 0f 0b eb f2 <e8> 58 00 00 00 eb d9 89 d9 80 e1 07 80 c1 03 38 c1 7c ac 49 89 fe
RSP: 0018:ffffc900045af710 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffff88805d48a1fc RCX: 0000000000080000
RDX: ffffc9000c411000 RSI: 000000000007ffff RDI: ffff88805d489dc0
RBP: ffffc900045af850 R08: dffffc0000000000 R09: 1ffffffff203aa18
R10: dffffc0000000000 R11: fffffbfff203aa19 R12: 1ffff1100ba9143f
R13: dffffc0000000000 R14: ffff88805d48a200 R15: dffffc0000000000
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 inet_twsk_purge+0x7a2/0x840 net/ipv4/inet_timewait_sock.c:309
 tcp_sk_exit_batch+0x28/0x90 net/ipv4/tcp_ipv4.c:3234
 ops_exit_list net/core/net_namespace.c:177 [inline]
 setup_net+0x844/0xa10 net/core/net_namespace.c:365
 copy_net_ns+0x348/0x5b0 net/core/net_namespace.c:503
 create_new_namespaces+0x3d3/0x6f0 kernel/nsproxy.c:110
 copy_namespaces+0x37d/0x3e0 kernel/nsproxy.c:178
 copy_process+0x1834/0x3e20 kernel/fork.c:2293
 kernel_clone+0x23f/0x990 kernel/fork.c:2679
 __do_sys_clone kernel/fork.c:2796 [inline]
 __se_sys_clone kernel/fork.c:2780 [inline]
 __x64_sys_clone+0x19a/0x210 kernel/fork.c:2780
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6a5c456e59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6a5a6affd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f6a5c6cffa0 RCX: 00007f6a5c456e59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040124080
RBP: 00007f6a5c4ecd6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007f6a5c6d0038 R14: 00007f6a5c6cffa0 R15: 00007fffcc8024a8
 </TASK>