rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2670 jiffies s: 9969 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6722 Comm: syz-executor.2 Not tainted 6.10.0-rc1-syzkaller-00013-g2bfcfd584ff5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x29/0x60 kernel/kcov.c:207
Code: 90 f3 0f 1e fa 65 48 8b 15 44 04 76 7e 65 8b 05 45 04 76 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 1c 16 00 00 <85> c0 74 2b 8b 82 f8 15 00 00 83 f8 02 75 20 48 8b 8a 00 16 00 00
RSP: 0000:ffffc90000006d38 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88807a7aad80 RCX: ffffffff8a6020c8
RDX: ffff888020848000 RSI: ffffffff8a602140 RDI: ffff88807a7aac30
RBP: ffff88807a7aac28 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000008 R12: ffff88807a7aac28
R13: 0000000000000001 R14: ffff888059a252e0 R15: dffffc0000000000
FS:  00007f35f81b06c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e441000 CR3: 000000007dc86000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 list_add_tail include/linux/list.h:183 [inline]
 list_move_tail include/linux/list.h:311 [inline]
 fq_tin_dequeue include/net/fq_impl.h:112 [inline]
 ieee80211_tx_dequeue+0x12c0/0x42a0 net/mac80211/tx.c:3854
 wake_tx_push_queue net/mac80211/util.c:294 [inline]
 ieee80211_handle_wake_tx_queue+0x19d/0x260 net/mac80211/util.c:315
 drv_wake_tx_queue net/mac80211/driver-ops.h:1350 [inline]
 schedule_and_wake_txq net/mac80211/driver-ops.h:1357 [inline]
 ieee80211_queue_skb+0x12b5/0x2010 net/mac80211/tx.c:1664
 ieee80211_tx+0x2e6/0x420 net/mac80211/tx.c:1966
 ieee80211_xmit+0x30e/0x3e0 net/mac80211/tx.c:2062
 __ieee80211_subif_start_xmit+0xa61/0x1410 net/mac80211/tx.c:4338
 ieee80211_subif_start_xmit+0x118/0x1650 net/mac80211/tx.c:4532
 __netdev_start_xmit include/linux/netdevice.h:4882 [inline]
 netdev_start_xmit include/linux/netdevice.h:4896 [inline]
 xmit_one net/core/dev.c:3578 [inline]
 dev_hard_start_xmit+0x143/0x790 net/core/dev.c:3594
 __dev_queue_xmit+0x7ba/0x4130 net/core/dev.c:4393
 dev_queue_xmit include/linux/netdevice.h:3095 [inline]
 neigh_resolve_output net/core/neighbour.c:1565 [inline]
 neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1545
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0x673/0x18b0 net/ipv6/ip6_output.c:137
 __ip6_finish_output net/ipv6/ip6_output.c:211 [inline]
 ip6_finish_output+0x3f9/0x1300 net/ipv6/ip6_output.c:222
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:243
 dst_output include/net/dst.h:450 [inline]
 NF_HOOK include/linux/netfilter.h:314 [inline]
 ndisc_send_skb+0xa2d/0x1c30 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x12b/0x690 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x422/0x850 net/ipv6/addrconf.c:4039
 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers+0x74b/0xaf0 kernel/time/timer.c:2417
 __run_timer_base kernel/time/timer.c:2428 [inline]
 __run_timer_base kernel/time/timer.c:2421 [inline]
 run_timer_base+0x111/0x190 kernel/time/timer.c:2437
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 26 68 80 f6 48 89 df e8 0e e5 80 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 <bf> 01 00 00 00 e8 25 27 72 f6 65 8b 05 b6 86 18 75 85 c0 74 16 5b
RSP: 0000:ffffc900036877f8 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff88807ccd76c0 RCX: 1ffffffff2855fa0
RDX: 0000000000000000 RSI: ffffffff8b2cade0 RDI: ffffffff8b8fffc0
RBP: 0000000000000286 R08: 0000000000000001 R09: fffffbfff284d66d
R10: ffffffff9426b36f R11: 0000000000000004 R12: 0000000000000002
R13: ffff88807ccd7700 R14: ffff88807ccd70e8 R15: ffff88807ccd7518
 __unix_dgram_recvmsg+0x32a/0xe50 net/unix/af_unix.c:2411
 unix_dgram_recvmsg+0xd0/0x110 net/unix/af_unix.c:2486
 sock_recvmsg_nosec net/socket.c:1046 [inline]
 ____sys_recvmsg+0x5fe/0x6b0 net/socket.c:2802
 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2846
 do_recvmmsg+0x2ba/0x750 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3019 [inline]
 __do_sys_recvmmsg net/socket.c:3042 [inline]
 __se_sys_recvmmsg net/socket.c:3035 [inline]
 __x64_sys_recvmmsg+0x239/0x290 net/socket.c:3035
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f35f747cee9
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:00007f35f81b00c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f35f75b4050 RCX: 00007f35f747cee9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000006
RBP: 00007f35f74c947f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f35f75b4050 R15: 00007ffea91555e8
 </TASK>