rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2636 jiffies s: 10121 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: 5997 Comm: syz.7.400 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:check_preemption_disabled+0x18/0x110 lib/smp_processor_id.c:14
Code: cc cc 48 c7 c7 00 f7 de 8a 48 c7 c6 40 f7 de 8a eb 00 55 41 57 41 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 <65> 8b 05 d1 32 ea 75 65 8b 0d 72 88 ea 75 f7 c1 ff ff ff 7f 74 1f
RSP: 0018:ffffc900001dfe08 EFLAGS: 00000082
RAX: 5b3eb1825d345a00 RBX: 0000000000000034 RCX: ffff8880246a3b80
RDX: 0000000000010100 RSI: ffffffff8adef740 RDI: ffffffff8adef700
RBP: 0000000000000002 R08: dffffc0000000000 R09: fffffbfff1c3ed56
R10: fffffbfff1c3ed56 R11: 1ffffffff1c3ed55 R12: ffffffff8c5e4988
R13: dffffc0000000000 R14: ffffffff96c36530 R15: 0000607f46400000
FS:  00007f539e3126c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000007bf3a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_trace_buf_alloc+0x178/0x300 kernel/trace/trace_event_perf.c:420
 perf_trace_lock+0x192/0x370 include/trace/events/lock.h:50
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x89a/0x910 kernel/locking/lockdep.c:5673
 seqcount_lockdep_reader_access+0xd9/0x1c0 include/linux/seqlock.h:103
 timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
 ktime_get_update_offsets_now+0x95/0x3e0 kernel/time/timekeeping.c:2320
 hrtimer_update_base kernel/time/hrtimer.c:659 [inline]
 hrtimer_interrupt+0x130/0x9c0 kernel/time/hrtimer.c:1855
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x153/0x5a0 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:stack_trace_consume_entry+0xe4/0x270 kernel/stacktrace.c:93
Code: 4c 8b 04 24 4c 89 e2 4c 89 ff 48 8b 74 24 08 48 8b 1f 45 8d 79 01 0f b6 44 15 00 84 c0 0f 85 35 01 00 00 45 89 38 4e 8d 3c cb <4c> 89 f8 48 c1 e8 03 80 3c 10 00 74 1a 4c 89 ff 48 89 f3 49 89 d4
RSP: 0018:ffffc900001e03f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900001e0580 RCX: 0000000000000100
RDX: dffffc0000000000 RSI: ffffffff81a3b559 RDI: ffffc900001e0500
RBP: 1ffff9200003c0a2 R08: ffffc900001e0510 R09: 0000000000000013
R10: fffff5200003c095 R11: 1ffff9200003c093 R12: 0000000000000000
R13: 1ffff9200003c0a1 R14: ffffc900001e0508 R15: ffffc900001e0618
 arch_stack_walk+0x100/0x140 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x98/0xe0 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+0x2d/0x50 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 kmem_cache_free+0xf7/0x290 mm/slub.c:3709
 kfree_skb include/linux/skbuff.h:1220 [inline]
 ip6_mc_input+0xa7a/0xc70 net/ipv6/ip6_input.c:589
 NF_HOOK+0x2ff/0x390 include/linux/netfilter.h:302
 __netif_receive_skb_one_core net/core/dev.c:5581 [inline]
 __netif_receive_skb+0xcc/0x290 net/core/dev.c:5695
 process_backlog+0x37c/0x6e0 net/core/dev.c:6023
 __napi_poll+0xc0/0x460 net/core/dev.c:6590
 napi_poll net/core/dev.c:6657 [inline]
 net_rx_action+0x5b1/0xad0 net/core/dev.c:6771
 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:debug_smp_processor_id+0x0/0x10 lib/smp_processor_id.c:60
Code: 8c 4c 89 f6 e8 b1 d1 16 fa e9 64 ff ff ff 48 c7 c7 e0 74 bc 8c 4c 89 f6 e8 9d d1 16 fa e9 6e ff ff ff 00 00 cc cc 00 00 cc cc <48> c7 c7 00 f7 de 8a 48 c7 c6 40 f7 de 8a eb 00 55 41 57 41 56 53
RSP: 0018:ffffc900039c79d8 EFLAGS: 00000282
RAX: ffffffff818a7282 RBX: 0000000000000001 RCX: 0000000000000002
RDX: ffff8880246a3b80 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900039c7af8 R08: dffffc0000000000 R09: fffffbfff215c449
R10: fffffbfff215c449 R11: 1ffffffff215c448 R12: 0000000000000000
R13: 1ffff92000738f4c R14: ffff8880594e24a8 R15: 0000000000000000
 rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
 rcu_is_watching+0x11/0xa0 kernel/rcu/tree.c:721
 rcu_read_unlock include/linux/rcupdate.h:820 [inline]
 trace_call_bpf+0x4ab/0x680 kernel/trace/bpf_trace.c:137
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:9997
 perf_trace_lock+0x2ec/0x370 include/trace/events/lock.h:50
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x89a/0x910 kernel/locking/lockdep.c:5673
 sk_alloc+0x232/0x340 net/core/sock.c:2128
 inet6_create+0x7ef/0x1240 net/ipv6/af_inet6.c:192
 __sock_create+0x4a2/0x940 net/socket.c:1550
 sock_create net/socket.c:1606 [inline]
 __sys_socket_create net/socket.c:1643 [inline]
 __sys_socket+0xc4/0x190 net/socket.c:1671
 __do_sys_socket net/socket.c:1684 [inline]
 __se_sys_socket net/socket.c:1682 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1682
 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: 0033:0x7f539d38f6c9
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:00007f539e312038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f539d5e5fa0 RCX: 00007f539d38f6c9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f539d411f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f539d5e6038 R14: 00007f539d5e5fa0 R15: 00007ffdef1a6d78
 </TASK>