rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16316/1:b..l (detected by 1, t=10503 jiffies, g=61565, q=1979) task:syz.0.3430 state:R running task stack:25648 pid:16316 ppid: 13245 flags:0x00004004 Call Trace: 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:should_resched arch/x86/include/asm/preempt.h:103 [inline] RIP: 0010:__local_bh_enable_ip+0x13e/0x1c0 kernel/softirq.c:408 Code: 8a e8 a6 61 80 08 65 66 8b 05 ae 5d ba 7e 66 85 c0 75 54 bf 01 00 00 00 e8 8f 23 09 00 e8 0a 1e 36 00 fb 65 8b 05 5a 34 b9 7e <85> c0 75 05 e8 99 41 b7 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc90002ddf740 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000200 RCX: dda07a9189a1df00 RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: ffffffff8a7a5100 RBP: ffffc90002ddf7d0 R08: ffff8880b8e3b30b R09: 1ffff110171c7661 R10: dffffc0000000000 R11: ffffed10171c7662 R12: ffffffff87eec865 R13: ffff888061fde000 R14: dffffc0000000000 R15: 1ffff920005bbee8 rcu_read_unlock_bh include/linux/rcupdate.h:810 [inline] __dev_queue_xmit+0x1b64/0x2e50 net/core/dev.c:4342 __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2184 [inline] __bpf_redirect+0xa07/0xe90 net/core/filter.c:2191 ____bpf_clone_redirect net/core/filter.c:2471 [inline] bpf_clone_redirect+0x2e1/0x460 net/core/filter.c:2434 bpf_prog_043644b32f68423b+0x19/0x948 bpf_dispatcher_nop_func include/linux/bpf.h:890 [inline] __bpf_prog_run include/linux/filter.h:621 [inline] bpf_prog_run include/linux/filter.h:635 [inline] bpf_test_run+0x4ae/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: 0033:0x7f417b76fb19 RSP: 002b:00007f41799c6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f417b9f5fa0 RCX: 00007f417b76fb19 RDX: 0000000000000050 RSI: 00002000000003c0 RDI: 000000000000000a RBP: 00007f417b807b70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f417b9f6038 R14: 00007f417b9f5fa0 R15: 00007fff01922d38