rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6846
rcu: 	(detected by 0, t=10502 jiffies, g=16829, q=189930 ncpus=2)
task:syz.3.368       state:R  running task     stack:21640 pid:6846  tgid:6845  ppid:5611   task_flags:0x400140 flags:0x00080000
Call Trace:
 <IRQ>
 sched_show_task+0x4aa/0x5f0 kernel/sched/core.c:8180
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:292 [inline]
 print_other_cpu_stall+0xfca/0x1380 kernel/rcu/tree_stall.h:680
 check_cpu_stall kernel/rcu/tree_stall.h:855 [inline]
 rcu_pending kernel/rcu/tree.c:3708 [inline]
 rcu_sched_clock_irq+0x939/0x1050 kernel/rcu/tree.c:2744
 update_process_times+0x234/0x2d0 kernel/time/timer.c:2475
 tick_sched_handle kernel/time/tick-sched.c:296 [inline]
 tick_nohz_handler+0x3c6/0x6f0 kernel/time/tick-sched.c:317
 __run_hrtimer kernel/time/hrtimer.c:2032 [inline]
 __hrtimer_run_queues+0x3bc/0xb10 kernel/time/hrtimer.c:2096
 hrtimer_interrupt+0x455/0x950 kernel/time/hrtimer.c:2215
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:save_dst_trace_buffer+0x1fb/0x5b0 net/core/dst.c:104
Code: 24 48 81 fb 40 ff 17 00 74 2d e8 80 5b b8 f8 48 81 c3 c0 00 00 00 49 83 c6 18 48 83 44 24 30 e8 48 83 44 24 28 e8 49 83 c5 e8 <49> 83 c7 e8 49 83 c4 e8 e9 72 ff ff ff e8 53 5b b8 f8 c6 05 4c a4
RSP: 0018:ffffc9000eaaf300 EFLAGS: 00000283
RAX: ffffffff890d1020 RBX: 000000000013e780 RCX: 0000000000080000
RDX: ffffc900055d1000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000eaaf488 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc9000eaaf260 R11: fffff52001d55e50 R12: e00000000cb60c93
R13: e00000000cb60c7a R14: 1ffffffff349f384 R15: e00000000cb60c92
 dst_hold include/net/dst.h:261 [inline]
 dst_clone include/net/dst.h:275 [inline]
 __skb_dst_copy include/net/dst.h:308 [inline]
 skb_dst_copy include/net/dst.h:313 [inline]
 __copy_skb_header+0x1a8/0x4b0 net/core/skbuff.c:1556
 __skb_clone+0x63/0x7a0 net/core/skbuff.c:1607
 skb_clone+0x246/0x3a0 net/core/skbuff.c:2117
 ____bpf_clone_redirect net/core/filter.c:2482 [inline]
 bpf_clone_redirect+0x16a/0x4b0 net/core/filter.c:2460
 bpf_prog_3e1cbbed0c4acd81+0x5f/0x68
 bpf_dispatcher_nop_func include/linux/bpf.h:1425 [inline]
 __bpf_prog_run include/linux/filter.h:723 [inline]
 bpf_prog_run include/linux/filter.h:730 [inline]
 bpf_test_run+0x354/0x830 net/bpf/test_run.c:422
 bpf_prog_test_run_skb+0xe2c/0x2260 net/bpf/test_run.c:1229
 bpf_prog_test_run+0x2cd/0x340 kernel/bpf/syscall.c:4854
 __sys_bpf+0xa20/0xd90 kernel/bpf/syscall.c:6431
 __do_sys_bpf kernel/bpf/syscall.c:6532 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6529 [inline]
 __x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6529
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fabb2fcce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fabb121e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fabb3245fa0 RCX: 00007fabb2fcce59
RDX: 0000000000000050 RSI: 00002000000000c0 RDI: 000000000000000a
RBP: 00007fabb3062d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fabb3246038 R14: 00007fabb3245fa0 R15: 00007ffd96927958
 </TASK>