rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5970/1:b..l (detected by 1, t=10503 jiffies, g=175413, q=1626 ncpus=2) task:syz.1.10793 state:R running task stack:25048 pid:5970 ppid:31585 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x11d1/0x40e0 kernel/sched/core.c:6562 preempt_schedule_irq+0xbb/0x160 kernel/sched/core.c:6874 irqentry_exit+0x63/0x70 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline] RIP: 0010:__local_bh_enable_ip+0x13e/0x1c0 kernel/softirq.c:428 Code: 8a e8 46 56 dd 08 65 66 8b 05 7e 3b b4 7e 66 85 c0 75 54 bf 01 00 00 00 e8 6f 85 09 00 e8 0a 79 39 00 fb 65 8b 05 2a 0a b3 7e <85> c0 75 05 e8 79 1e b1 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc90005c176a0 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000200 RCX: 37e07512b8e8ff00 RDX: dffffc0000000000 RSI: ffffffff8a8c1220 RDI: ffffffff8adf0de0 RBP: ffffc90005c17730 R08: ffff8880b8e3580b R09: 1ffff110171c6b01 R10: dffffc0000000000 R11: ffffed10171c6b02 R12: ffffffff8831149b R13: 1ffff11004f96358 R14: dffffc0000000000 R15: 1ffff92000b82ed4 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:861 [inline] __dev_queue_xmit+0x1c61/0x37f0 net/core/dev.c:4386 dev_queue_xmit include/linux/netdevice.h:3051 [inline] __bpf_tx_skb net/core/filter.c:2134 [inline] __bpf_redirect_common net/core/filter.c:2182 [inline] __bpf_redirect+0xbdf/0x1180 net/core/filter.c:2189 ____bpf_clone_redirect net/core/filter.c:2473 [inline] bpf_clone_redirect+0x30b/0x4a0 net/core/filter.c:2436 bpf_prog_39bf9e0015142c8c+0x19/0x1d bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline] __bpf_prog_run include/linux/filter.h:596 [inline] bpf_prog_run include/linux/filter.h:614 [inline] bpf_test_run+0x4c1/0x830 net/bpf/test_run.c:402 bpf_prog_test_run_skb+0xaa6/0x12a0 net/bpf/test_run.c:1191 bpf_prog_test_run+0x31e/0x390 kernel/bpf/syscall.c:3695 __sys_bpf+0x62b/0x780 kernel/bpf/syscall.c:5048 __do_sys_bpf kernel/bpf/syscall.c:5134 [inline] __se_sys_bpf kernel/bpf/syscall.c:5132 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5132 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7eff9879c799 RSP: 002b:00007eff996ca028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007eff98a15fa0 RCX: 00007eff9879c799 RDX: 0000000000000050 RSI: 00002000000003c0 RDI: 000000000000000a RBP: 00007eff98832bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007eff98a16038 R14: 00007eff98a15fa0 R15: 00007ffca5b8c828