rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P13899/1:b..l
	(detected by 1, t=10505 jiffies, g=177037, q=242)
task:syz.0.12653     state:R  running task     stack:24656 pid:13899 ppid: 10320 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:skb_end_pointer include/linux/skbuff.h:1475 [inline]
RIP: 0010:skb_cloned include/linux/skbuff.h:1717 [inline]
RIP: 0010:skb_ensure_writable+0xe0/0x450 net/core/skbuff.c:5816
Code: 24 04 48 8d bb c8 00 00 00 48 89 f9 48 c1 e9 03 48 b8 00 00 00 00 00 fc ff df 48 89 4c 24 08 80 3c 01 00 74 05 e8 90 52 d4 f9 <4c> 8b ab c8 00 00 00 48 8d 93 c4 00 00 00 48 89 d5 48 c1 ed 03 49
RSP: 0018:ffffc9000312f830 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88805bcaa640 RCX: 1ffff1100b7954e1
RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff88805bcaa708
RBP: 0000000000000001 R08: ffff88804e1776e3 R09: 1ffff11009c2eedc
R10: dffffc0000000000 R11: ffffed1009c2eedd R12: ffff88805bcaa6be
R13: 00000000000002eb R14: 0000000000000000 R15: 1ffff1100b7954d7
 __bpf_try_make_writable net/core/filter.c:1676 [inline]
 bpf_try_make_writable net/core/filter.c:1682 [inline]
 bpf_try_make_head_writable net/core/filter.c:1690 [inline]
 ____bpf_clone_redirect net/core/filter.c:2465 [inline]
 bpf_clone_redirect+0x1c2/0x460 net/core/filter.c:2434
 bpf_prog_e97454e6a39c6b06+0x59/0x600
 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: 0033:0x7fbbb5eef559
RSP: 002b:00007fbbb4146028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fbbb6175fa0 RCX: 00007fbbb5eef559
RDX: 0000000000000028 RSI: 0000200000000740 RDI: 000000000000000a
RBP: 00007fbbb5f86b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbbb6176038 R14: 00007fbbb6175fa0 R15: 00007fff59282ec8
 </TASK>