rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P11494
rcu: 	(detected by 1, t=10502 jiffies, g=36861, q=2852 ncpus=2)
task:syz.0.1464      state:R  running task     stack:26688 pid:11494 tgid:11489 ppid:5856   task_flags:0x400140 flags:0x00004006
Call Trace:
 <IRQ>
 sched_show_task+0x49d/0x630 kernel/sched/core.c:7933
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:292 [inline]
 print_other_cpu_stall+0xf7a/0x1340 kernel/rcu/tree_stall.h:681
 check_cpu_stall kernel/rcu/tree_stall.h:857 [inline]
 rcu_pending kernel/rcu/tree.c:3671 [inline]
 rcu_sched_clock_irq+0xa47/0x11b0 kernel/rcu/tree.c:2706
 update_process_times+0x23c/0x2f0 kernel/time/timer.c:2473
 tick_sched_handle kernel/time/tick-sched.c:276 [inline]
 tick_nohz_handler+0x39a/0x520 kernel/time/tick-sched.c:297
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x4e0/0xc60 kernel/time/hrtimer.c:1825
 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__xfrm_state_lookup+0x328/0x8d0 net/xfrm/xfrm_state.c:1184
Code: 4c 8d b3 42 01 00 00 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 7c 03 00 00 45 0f b7 36 44 89 f7 44 89 ee e8 28 c7 9e f7 <66> 45 39 ee 0f 85 2f 01 00 00 4c 8d b3 c4 00 00 00 4c 89 f0 48 c1
RSP: 0018:ffffc9001c5375c0 EFLAGS: 00000297
RAX: ffffffff8a20e588 RBX: ffff88823b46d028 RCX: 0000000000000002
RDX: ffff8880703b3c00 RSI: 000000000000000a RDI: 0000000000003b46
RBP: ffffc9001c5376b0 R08: dffffc0000000000 R09: 0000000000000002
R10: 000000000000000a R11: 0000000000000002 R12: dffffc0000000000
R13: 000000000000000a R14: 0000000000003b46 R15: 0000000000000000
 xfrm_state_lookup+0x11e/0x1e0 net/xfrm/xfrm_state.c:2321
 pfkey_xfrm_state_lookup net/key/af_key.c:690 [inline]
 pfkey_get+0x2ae/0x880 net/key/af_key.c:1587
 pfkey_process net/key/af_key.c:2848 [inline]
 pfkey_sendmsg+0xbfe/0x1090 net/key/af_key.c:3699
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc17098ebe9
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:00007fc16ebf6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc170bc5fa0 RCX: 00007fc17098ebe9
RDX: 0000000000000000 RSI: 00002000005f5000 RDI: 0000000000000005
RBP: 00007fc170a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc170bc6038 R14: 00007fc170bc5fa0 R15: 00007ffe67d7cdd8
 </TASK>