rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2686 jiffies s: 13241 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: 4738 Comm: syz.4.235 Not tainted 6.1.111-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:35 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_acquire+0x194/0x5a0 kernel/locking/lockdep.c:5658
Code: 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08 4c 89 ff e8 90 ad 77 00 48 c7 84 24 80 00 00 00 00 00 00 00 9c 8f 84 24 80 00 00 00 <42> 80 3c 2b 00 74 08 4c 89 ff e8 ed ac 77 00 48 8d 5c 24 60 4c 8b
RSP: 0018:ffffc900001df9a0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff9200003bf44 RCX: ffffffff816a83db
RDX: 0000000000000000 RSI: ffffffff8b5d6da0 RDI: ffffffff8b5d6d60
RBP: ffffc900001dfae8 R08: dffffc0000000000 R09: fffffbfff1d33cae
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200003bf3c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc900001dfa20
FS:  00007f2b9d9946c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5cd3b83b0 CR3: 000000002dfd3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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+0x7f/0x270 kernel/time/timekeeping.c:848
 hrtimer_forward_now include/linux/hrtimer.h:508 [inline]
 perf_swevent_hrtimer+0x43b/0x4f0 kernel/events/core.c:10881
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x5a7/0xe50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815
 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:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:52 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:178 [inline]
RIP: 0010:unwind_next_frame+0x4a9/0x2220 arch/x86/kernel/unwind_orc.c:448
Code: c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 47 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 48 63 03 <48> 01 d8 48 8d 4b 04 4c 39 e8 4c 0f 46 f9 48 8d 43 fc 48 0f 47 e8
RSP: 0018:ffffc900001e01a0 EFLAGS: 00000246
RAX: fffffffff99a71d7 RBX: ffffffff8ef71fac RCX: dffffc0000000000
RDX: ffffffff8f8a2e34 RSI: ffffffff889192b8 RDI: dffffc0000000000
RBP: ffffffff8ef71fac R08: 0000000000000001 R09: ffffc900001e0370
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8ef71fac
R13: ffffffff889192b7 R14: ffffffff8ef71fac R15: ffffffff8ef71fac
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 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]
 ref_tracker_alloc+0x13c/0x470 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4008 [inline]
 netdev_hold include/linux/netdevice.h:4037 [inline]
 dst_init+0xee/0x440 net/core/dst.c:52
 dst_alloc+0x155/0x190 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0x7b/0x470 net/ipv6/route.c:3269
 ndisc_send_skb+0x344/0x14e0 net/ipv6/ndisc.c:491
 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:mmdrop include/linux/sched/mm.h:49 [inline]
RIP: 0010:mmdrop_sched include/linux/sched/mm.h:78 [inline]
RIP: 0010:finish_task_switch+0x2a1/0x810 kernel/sched/core.c:5145
Code: 85 d9 01 00 00 f7 03 20 00 00 00 0f 85 15 01 00 00 49 8d be 90 00 00 00 be 04 00 00 00 e8 57 e1 82 00 f0 41 ff 8e 90 00 00 00 <74> 22 81 7d b8 80 00 00 00 74 2a 48 83 c4 20 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc9000586f748 EFLAGS: 00000202
RAX: 1ffff11005589401 RBX: ffff88802ac4b418 RCX: ffffffff815f51c9
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888020fc2d90
RBP: ffffc9000586f790 R08: dffffc0000000000 R09: ffffed10041f85b3
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802ac4a2e8
R13: dffffc0000000000 R14: ffff888020fc2d00 R15: ffff88801ee99dc0
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x1447/0x4570 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:stack_trace_save+0x6f/0x1c0 kernel/stacktrace.c:114
Code: 20 b3 8a b5 41 48 c7 44 24 28 3a 47 b6 8c 48 c7 44 24 30 90 6a 78 81 4c 8d 7c 24 20 49 c1 ef 03 48 b8 f1 f1 f1 f1 00 00 00 f3 <4b> 89 04 2f 43 c7 44 2f 08 f3 f3 f3 f3 48 8d 7c 24 50 48 89 f8 48
RSP: 0018:ffffc9000586fae0 EFLAGS: 00000a06
RAX: f3000000f1f1f1f1 RBX: 0000000000000001 RCX: 9aa4ad5592e3ca00
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc9000586fc00
RBP: ffffc9000586fbb0 R08: 000000000000000b R09: 0000000000000001
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc9000586fc00
R13: dffffc0000000000 R14: ffffc9000586fb20 R15: 1ffff92000b0df60
 ref_tracker_alloc+0x179/0x470 lib/ref_tracker.c:91
 netns_tracker_alloc include/net/net_namespace.h:327 [inline]
 get_net_track include/net/net_namespace.h:343 [inline]
 sk_alloc+0x1aa/0x350 net/core/sock.c:2112
 smc_sock_alloc+0x50/0x580 net/smc/af_smc.c:374
 __smc_create net/smc/af_smc.c:3261 [inline]
 smc_create+0xce/0x2a0 net/smc/af_smc.c:3292
 __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: 0033:0x7f2b9cb7def9
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:00007f2b9d994038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f2b9cd36058 RCX: 00007f2b9cb7def9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000002b
RBP: 00007f2b9cbf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2b9cd36058 R15: 00007ffe59f6fda8
 </TASK>