rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P3700 P7767 1-.... } 2651 jiffies s: 24661 root: 0x2/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7772 Comm: syz.3.1138 Not tainted 6.1.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:mark_lock+0xa2/0x340 kernel/locking/lockdep.c:4606
Code: 00 8b 1b 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 c2 1d 91 be 08 00 00 00 e8 b6 41 77 00 48 0f a3 1d 1e d1 b2 0f <73> 11 48 8d 04 5b 48 c1 e0 06 48 8d 98 20 41 bb 90 eb 23 48 c7 c0
RSP: 0018:ffffc900001df5d8 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000048 RCX: ffffffff816af0fa
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff911dc228
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff223b846
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888025da6418
R13: dffffc0000000000 R14: 0000000000000002 R15: ffff888025da6510
FS:  00007fb4e7fbc6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31f1dff8 CR3: 0000000073e95000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 mark_usage kernel/locking/lockdep.c:4511 [inline]
 __lock_acquire+0xa28/0x1f80 kernel/locking/lockdep.c:5003
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 seqcount_lockdep_reader_access+0xf8/0x220 include/linux/seqlock.h:102
 timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
 ktime_get_update_offsets_now+0x89/0x420 kernel/time/timekeeping.c:2320
 hrtimer_update_base kernel/time/hrtimer.c:632 [inline]
 hrtimer_interrupt+0x12f/0x980 kernel/time/hrtimer.c:1797
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:unwind_get_return_address+0x27/0x80 arch/x86/kernel/unwind_orc.c:323
Code: 09 66 90 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 47 83 3b 00 74 3a <48> 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8
RSP: 0018:ffffc900001dfb80 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc900001dfba0 RCX: 0000000000000301
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc900001dfba0
RBP: ffffc900001dfc30 R08: dffffc0000000000 R09: ffffc900001dfbf0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888025da5940
R13: ffffffff81786c50 R14: dffffc0000000000 R15: 0000000000000000
 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0x292/0x510 mm/slub.c:3683
 ip_tunnel_xmit+0x122f/0x2cc0
 __gre_xmit net/ipv4/ip_gre.c:474 [inline]
 gre_tap_xmit+0x4eb/0x6e0 net/ipv4/ip_gre.c:751
 __netdev_start_xmit include/linux/netdevice.h:4853 [inline]
 netdev_start_xmit include/linux/netdevice.h:4867 [inline]
 xmit_one net/core/dev.c:3627 [inline]
 dev_hard_start_xmit+0x261/0x8c0 net/core/dev.c:3643
 sch_direct_xmit+0x2b2/0x5e0 net/sched/sch_generic.c:342
 __dev_xmit_skb net/core/dev.c:3854 [inline]
 __dev_queue_xmit+0x1ace/0x3cf0 net/core/dev.c:4259
 dev_queue_xmit include/linux/netdevice.h:3021 [inline]
 neigh_hh_output include/net/neighbour.h:528 [inline]
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0xeae/0x15f0 net/ipv6/ip6_output.c:138
 __ip6_finish_output net/ipv6/ip6_output.c:205 [inline]
 ip6_finish_output+0x6a0/0xa80 net/ipv6/ip6_output.c:216
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xbab/0x14e0 net/ipv6/ndisc.c:511
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3963
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:stack_trace_consume_entry+0x37/0x270 kernel/stacktrace.c:86
Code: 18 48 89 fb 48 ba 00 00 00 00 00 fc ff df 4c 8d 4f 10 4d 89 cf 49 c1 ef 03 41 0f b6 04 17 84 c0 0f 85 02 01 00 00 44 8b 43 10 <48> 8d 6b 08 49 89 ec 49 c1 ec 03 41 0f b6 04 14 84 c0 0f 85 16 01
RSP: 0018:ffffc900039cf590 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900039cf6c0 RCX: ffffffff8fdb2000
RDX: dffffc0000000000 RSI: ffffffff88919a06 RDI: ffffc900039cf6c0
RBP: ffffc900039cf670 R08: 000000000000000d R09: ffffc900039cf6d0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888025da5940
R13: ffffffff81786c50 R14: ffffc900039cf6c0 R15: 1ffff92000739eda
 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:693 [inline]
 apparmor_sk_alloc_security+0x73/0x100 security/apparmor/lsm.c:812
 security_sk_alloc+0x6d/0xa0 security/security.c:2331
 sk_prot_alloc+0xfa/0x200 net/core/sock.c:2050
 sk_alloc+0x36/0x350 net/core/sock.c:2100
 inet_create+0x651/0xeb0 net/ipv4/af_inet.c:319
 __sock_create+0x488/0x910 net/socket.c:1550
 mptcp_subflow_create_socket+0x117/0xc00 net/mptcp/subflow.c:1595
 __mptcp_socket_create net/mptcp/protocol.c:110 [inline]
 mptcp_init_sock+0x135/0x810 net/mptcp/protocol.c:2830
 inet_create+0xb59/0xeb0 net/ipv4/af_inet.c:381
 __sock_create+0x488/0x910 net/socket.c:1550
 sock_create net/socket.c:1601 [inline]
 __sys_socket_create net/socket.c:1638 [inline]
 __sys_socket+0x136/0x3a0 net/socket.c:1666
 __do_sys_socket net/socket.c:1679 [inline]
 __se_sys_socket net/socket.c:1677 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1677
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb4e717def9
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:00007fb4e7fbc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fb4e7335f80 RCX: 00007fb4e717def9
RDX: 0000000000000106 RSI: 0000922000000001 RDI: 0000000000000002
RBP: 00007fb4e71f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb4e7335f80 R15: 00007ffeb26896a8
 </TASK>