rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15974/1:b..l
	(detected by 1, t=10503 jiffies, g=44189, q=1275)
task:syz.8.3201      state:R  running task     stack:26512 pid:15974 ppid: 10485 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:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:204
Code: 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d d0 06 f4 0c 48 89 de 5b e9 b7 7f 44 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 24 42 89 7e 65 8b 15 25 42 89 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc90002f1fab8 EFLAGS: 00000246
RAX: ffffffff882a1586 RBX: ffffc90002f1fd44 RCX: ffffc90002f1fd40
RDX: ffffc90002f1fba4 RSI: 0000000002000000 RDI: ffffc90002f1fba8
RBP: 0000000002000000 R08: ffff888024cc9dc0 R09: 0000000000000004
R10: 0000000000000003 R11: 0000000000000002 R12: ffffc90002f1fd40
R13: dffffc0000000000 R14: ffffc90002f1fba8 R15: 0000000000000000
 bpf_test_timer_continue+0x26/0x380 net/bpf/test_run.c:56
 bpf_test_run+0x3a7/0x800 net/bpf/test_run.c:120
 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: 0033:0x7fbb203deb19
RSP: 002b:00007fbb1e635028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fbb20664fa0 RCX: 00007fbb203deb19
RDX: 000000000000004c RSI: 00002000000002c0 RDI: 000000000000000a
RBP: 00007fbb20476b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbb20665038 R14: 00007fbb20664fa0 R15: 00007ffdba3ea218
 </TASK>