rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2678 jiffies s: 14313 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7410 Comm: syz-executor.4 Not tainted 6.10.0-rc2-syzkaller-00097-g2df0193e62cf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:taprio_dequeue_tc_priority+0x2d8/0x7a0 net/sched/sch_taprio.c:797
Code: 0f 85 81 04 00 00 e8 17 3c 06 f8 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 22 01 00 00 8b 44 24 0c 41 39 45 00 <48> 8b 6c 24 60 4c 8b 7c 24 58 0f 84 74 03 00 00 e8 e3 3b 06 f8 41
RSP: 0018:ffffc90000a18b48 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff88801f4eda00
RDX: 0000000000000101 RSI: 0000000000000010 RDI: 0000000000000004
RBP: 0000000000000004 R08: ffffffff898fea1e R09: 1ffffffff25f52b0
R10: dffffc0000000000 R11: ffffffff8981e020 R12: dffffc0000000000
R13: ffff88807eaa6390 R14: 0000000000000000 R15: 1ffff1100fd54c72
FS:  00007fc654b6b6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ca21000 CR3: 000000006325a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 taprio_dequeue+0x186/0x550
 dequeue_skb net/sched/sch_generic.c:293 [inline]
 qdisc_restart net/sched/sch_generic.c:398 [inline]
 __qdisc_run+0x272/0x2170 net/sched/sch_generic.c:416
 qdisc_run+0xda/0x270 include/net/pkt_sched.h:127
 net_tx_action+0x89c/0xa50 net/core/dev.c:5286
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x170/0x200 kernel/softirq.c:389
Code: 8b e8 54 79 2c 0a 65 66 8b 05 14 d8 a9 7e 66 85 c0 75 5d bf 01 00 00 00 e8 ad 9d 0b 00 e8 38 96 43 00 fb 65 8b 05 d8 d7 a9 7e <85> c0 75 05 e8 17 b9 a6 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c
RSP: 0018:ffffc90012e6efa0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 1ffff920025cddf8 RCX: ffffffff947a1603
RDX: dffffc0000000000 RSI: ffffffff8bcabb80 RDI: ffffffff8c1ff340
RBP: ffffc90012e6f050 R08: ffffffff8fad476f R09: 1ffffffff1f5a8ed
R10: dffffc0000000000 R11: fffffbfff1f5a8ee R12: dffffc0000000000
R13: 1ffff920025cddfc R14: ffffc90012e6efe0 R15: 0000000000000200
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 ipt_do_table+0x1552/0x1860 net/ipv4/netfilter/ip_tables.c:357
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_mc_output+0x466/0x5c0 net/ipv4/ip_output.c:420
 ip_local_out net/ipv4/ip_output.c:129 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1492
 udp_send_skb+0xaa4/0x1470 net/ipv4/udp.c:980
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1268
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585
 ___sys_sendmsg net/socket.c:2639 [inline]
 __sys_sendmmsg+0x3b2/0x740 net/socket.c:2725
 __do_sys_sendmmsg net/socket.c:2754 [inline]
 __se_sys_sendmmsg net/socket.c:2751 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2751
 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: 0033:0x7fc653e7cf69
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:00007fc654b6b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fc653fb3f80 RCX: 00007fc653e7cf69
RDX: 000000000800001d RSI: 0000000020007fc0 RDI: 0000000000000003
RBP: 00007fc653eda6fe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc653fb3f80 R15: 00007fc6540dfaa8
 </TASK>