rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8725/1:b..l
	(detected by 0, t=10502 jiffies, g=140489, q=4098)
task:syz.6.8947      state:R  running task     stack:25552 pid: 8725 ppid: 29569 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11c3/0x4350 kernel/sched/core.c:6395
 preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6799
 irqentry_exit+0x63/0x70 kernel/entry/common.c:435
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:bpf_compute_data_pointers include/linux/filter.h:700 [inline]
RIP: 0010:____bpf_skb_change_head net/core/filter.c:3893 [inline]
RIP: 0010:bpf_skb_change_head+0x326/0x5f0 net/core/filter.c:3888
Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 9c 02 00 00 66 41 89 2e 31 ed 48 8d bb d0 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <74> 05 e8 33 50 c7 f9 4c 8b bb d0 00 00 00 48 8d bb c8 00 00 00 48
RSP: 0018:ffffc900030af890 EFLAGS: 00000246
RAX: 1ffff1100b3f5d82 RBX: ffff888059faeb40 RCX: ffff888077348000
RDX: 0000000000000000 RSI: ffffc8fffa0af8ed RDI: ffff888059faec10
RBP: 00000000ffffffea R08: 0000000000000005 R09: 1ffff1100ee69000
R10: dffffc0000000000 R11: ffffed100ee69001 R12: dffffc0000000000
R13: ffffc900011ec030 R14: ffffc8fffa0af8ed R15: ffff888059faebb0
 bpf_prog_7009392a11c3723c+0x57/0x990
 bpf_dispatcher_nop_func include/linux/bpf.h:890 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 bpf_test_run+0x2a8/0x800 net/bpf/test_run.c:119
 bpf_prog_test_run_skb+0x9fb/0x1190 net/bpf/test_run.c:678
 bpf_prog_test_run+0x31c/0x390 kernel/bpf/syscall.c:3374
 __sys_bpf+0x5a5/0x6f0 kernel/bpf/syscall.c:4675
 __do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f890c34a559
RSP: 002b:00007f890a51d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f890c5d1360 RCX: 00007f890c34a559
RDX: 0000000000000048 RSI: 0000200000000800 RDI: 000000000000000a
RBP: 00007f890c3e1b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f890c5d13f8 R14: 00007f890c5d1360 R15: 00007ffc131533a8
 </TASK>