rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (10500 ticks this GP) idle=69ec/1/0x4000000000000000 softirq=16039/17786 fqs=4786
rcu: hardirqs softirqs csw/system
rcu: number: 1386530 596 0
rcu: cputime: 16140 36343 45 ==> 52490(ms)
rcu: (t=10500 jiffies g=16069 q=1557 ncpus=2)
CPU: 1 PID: 7158 Comm: syz.2.354 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:skb_checksum+0x4/0x40 net/core/skbuff.c:3366
Code: 6d fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c c0 fe ff ff 4c 89 f7 e8 49 38 78 f9 e9 b3 fe ff ff 0f 1f 40 00 f3 0f 1e fa <55> 41 57 41 56 53 89 cb 89 d5 41 89 f6 49 89 ff e8 57 dc 20 f9 4c
RSP: 0018:ffffc900001f05a0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88801b318500 RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffff88801b318500
RBP: 0000000000000010 R08: ffff88802f0cda00 R09: 0000000000000002
R10: 0000000000000002 R11: 0000000000000100 R12: ffff888025bcc618
R13: ffff88801b318580 R14: dffffc0000000000 R15: ffff888025bcc628
FS: 00007f5a077af6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe4ee1156c0 CR3: 00000000774fe000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
nf_ip6_checksum+0x1ce/0x330 net/netfilter/utils.c:89
nf_conntrack_icmpv6_error+0x1d8/0x5d0 net/netfilter/nf_conntrack_proto_icmpv6.c:200
nf_conntrack_handle_icmp+0xd2/0x180 net/netfilter/nf_conntrack_core.c:1905
nf_conntrack_in+0x1173/0x15c0 net/netfilter/nf_conntrack_core.c:1999
nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]
nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:259 [inline]
NF_HOOK+0x204/0x390 include/linux/netfilter.h:302
__netif_receive_skb_one_core net/core/dev.c:5608 [inline]
__netif_receive_skb+0xcc/0x290 net/core/dev.c:5722
process_backlog+0x380/0x6e0 net/core/dev.c:6050
__napi_poll+0xc0/0x460 net/core/dev.c:6612
napi_poll net/core/dev.c:6679 [inline]
net_rx_action+0x5ea/0xbf0 net/core/dev.c:6815
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:finish_task_switch+0x26a/0x920 kernel/sched/core.c:5254
Code: 0f 84 37 01 00 00 48 85 db 0f 85 56 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 70 25 1c 09 e8 1b a3 2f 00 fb 4c 8b 65 c0 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc9000c647618 EFLAGS: 00000286
RAX: b297f6a711440a00 RBX: 0000000000000000 RCX: b297f6a711440a00
RDX: dffffc0000000000 RSI: ffffffff8aaabce0 RDI: ffffffff8afc6b00
RBP: ffffc9000c647670 R08: ffffffff90da85ff R09: 1ffffffff21b50bf
R10: dffffc0000000000 R11: fffffbfff21b50c0 R12: ffff88802f0cda00
R13: dffffc0000000000 R14: ffff88805c6f0000 R15: ffff8880b8f3ccc8
context_switch kernel/sched/core.c:5383 [inline]
__schedule+0x14da/0x44d0 kernel/sched/core.c:6699
preempt_schedule_irq+0xb5/0x140 kernel/sched/core.c:7009
irqentry_exit+0x67/0x70 kernel/entry/common.c:438
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__preempt_count_add arch/x86/include/asm/preempt.h:80 [inline]
RIP: 0010:preempt_schedule_common+0x1e/0xc0 kernel/sched/core.c:6864
Code: 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d 48 f7 03 08 00 00 00 0f 84 99 00 00 00 <65> ff 05 83 a5 8c 75 65 8b 05 7c a5 8c 75 25 ff ff ff 7f 83 f8 01
RSP: 0018:ffffc9000c6479e0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff920018c8f40 RCX: 0000000000080000
RDX: ffffc9000dc1b000 RSI: 000000000001f313 RDI: 000000000001f314
RBP: ffffc9000c647a78 R08: ffffffff90da85ff R09: 1ffffffff21b50bf
R10: dffffc0000000000 R11: fffffbfff21b50c0 R12: 0000000000000000
R13: dffffc0000000000 R14: dffffc0000000000 R15: dffffc0000000000
preempt_schedule+0xab/0xc0 kernel/sched/core.c:6890
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
smp_call_function_single+0x469/0x580 kernel/smp.c:652
task_function_call kernel/events/core.c:120 [inline]
perf_install_in_context+0x591/0x8e0 kernel/events/core.c:2948
__do_sys_perf_event_open kernel/events/core.c:12915 [inline]
__se_sys_perf_event_open+0x17fa/0x1c20 kernel/events/core.c:12567
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5a0698f6c9
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:00007f5a077af038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f5a06be5fa0 RCX: 00007f5a0698f6c9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140
RBP: 00007f5a06a11f91 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a06be6038 R14: 00007f5a06be5fa0 R15: 00007ffc8a84f968