rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2688 jiffies s: 1733 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: 4460 Comm: syz.3.13 Not tainted 6.1.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:irq_work_run_list kernel/irq_work.c:235 [inline]
RIP: 0010:irq_work_run+0x1b0/0x2e0 kernel/irq_work.c:253
Code: f3 ff 4c 8d 34 dd 80 09 5e 8c 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 ca dc 43 00 48 c7 c3 c0 40 03 00 49 03 1e <48> c7 44 24 20 00 00 00 00 9c 8f 44 24 20 4c 8b 74 24 20 4c 89 f6
RSP: 0018:ffffc900000075c0 EFLAGS: 00000086
RAX: 1ffffffff18bc130 RBX: ffff8880b8e340c0 RCX: ffff8880786d9dc0
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffffc90000007670 R08: dffffc0000000000 R09: ffffed10171c7730
R10: ffffed10171c7730 R11: 1ffff110171c772f R12: 1ffff92000000eb8
R13: 0000000000000000 R14: ffffffff8c5e0980 R15: dffffc0000000000
FS:  00007f7204c486c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007940 CR3: 0000000079ed6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __sysvec_irq_work+0xba/0x350 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x4a/0xc0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:682
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 7d 9f 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007760 EFLAGS: 00000206
RAX: 03abb626c3a91700 RBX: 1ffff92000000ef4 RCX: 03abb626c3a91700
RDX: dffffc0000000000 RSI: ffffffff8a8c0460 RDI: ffffffff8adef320
RBP: ffffc90000007860 R08: dffffc0000000000 R09: fffffbfff215ba67
R10: fffffbfff215ba67 R11: 1ffffffff215ba66 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ndisc_send_skb+0xda7/0x1510 net/ipv6/ndisc.c:521
 addrconf_rs_timer+0x2b8/0x600 net/ipv6/addrconf.c:3980
 call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:tomoyo_check_acl+0xcc/0x3f0 security/tomoyo/domain.c:173
Code: 00 00 4c 8b 75 00 49 39 ee 0f 84 df 01 00 00 4d 8d 7e 18 4c 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 02 01 00 00 45 0f b6 3f <31> ff 44 89 fe e8 2a 69 bc fd 45 85 ff 74 0a e8 c0 66 bc fd e9 ad
RSP: 0018:ffffc90002e87710 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000eb6a000 RSI: 0000000000003368 RDI: 0000000000003369
RBP: ffff88801d2f9610 R08: dffffc0000000000 R09: ffffc90002e878a0
R10: fffff520005d0f1e R11: 1ffff920005d0f14 R12: 0000000000000002
R13: 0000000000000000 R14: ffff888025617c00 R15: 0000000000000000
 tomoyo_inet_entry security/tomoyo/network.c:483 [inline]
 tomoyo_check_inet_address+0x43e/0x870 security/tomoyo/network.c:532
 tomoyo_socket_sendmsg_permission+0x212/0x2f0 security/tomoyo/network.c:774
 security_socket_sendmsg+0x6c/0xa0 security/security.c:2275
 __sock_sendmsg net/socket.c:727 [inline]
 ____sys_sendmsg+0x508/0x970 net/socket.c:2519
 ___sys_sendmsg+0x21c/0x290 net/socket.c:2573
 __sys_sendmsg net/socket.c:2602 [inline]
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg+0x19e/0x270 net/socket.c:2609
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7203d8e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7204c48038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7203fb5fa0 RCX: 00007f7203d8e9a9
RDX: 0000000000000804 RSI: 0000200000007940 RDI: 000000000000000d
RBP: 00007f7203e10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7203fb5fa0 R15: 00007fff475b48e8
 </TASK>