rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P15537/1:b..l (detected by 0, t=10502 jiffies, g=78345, q=629 ncpus=2) task:syz.3.3438 state:R running task stack:24880 pid:15537 ppid:14622 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5245 [inline] __schedule+0x107f/0x4030 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 36 b4 db 08 65 66 8b 05 be 66 b4 7e 66 85 c0 75 54 bf 01 00 00 00 e8 6f 82 09 00 e8 fa 4b 39 00 fb 65 8b 05 6a 33 b3 7e <85> c0 75 05 e8 79 47 b1 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 RSP: 0018:ffffc9000dd276a0 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000200 RCX: 54c4b2c644dec000 RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adee1a0 RBP: ffffc9000dd27730 R08: ffff8880b8f3580b R09: 1ffff110171e6b01 R10: dffffc0000000000 R11: ffffed10171e6b02 R12: ffffffff882f2501 R13: ffff888076826000 R14: dffffc0000000000 R15: 1ffff92001ba4ed4 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:861 [inline] __dev_queue_xmit+0x1d84/0x3810 net/core/dev.c:4411 dev_queue_xmit include/linux/netdevice.h:3051 [inline] __bpf_tx_skb net/core/filter.c:2143 [inline] __bpf_redirect_common net/core/filter.c:2191 [inline] __bpf_redirect+0xb65/0x1110 net/core/filter.c:2198 ____bpf_clone_redirect net/core/filter.c:2482 [inline] bpf_clone_redirect+0x311/0x4a0 net/core/filter.c:2445 bpf_prog_9cf096744e8554d9+0x19/0x1d bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline] __bpf_prog_run include/linux/filter.h:607 [inline] bpf_prog_run include/linux/filter.h:614 [inline] bpf_test_run+0x2b6/0x830 net/bpf/test_run.c:402 bpf_prog_test_run_skb+0xdaf/0x18e0 net/bpf/test_run.c:1222 bpf_prog_test_run+0x31c/0x390 kernel/bpf/syscall.c:3695 __sys_bpf+0x62b/0x780 kernel/bpf/syscall.c:5049 __do_sys_bpf kernel/bpf/syscall.c:5135 [inline] __se_sys_bpf kernel/bpf/syscall.c:5133 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5133 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: 0033:0x7ff98439ce59 RSP: 002b:00007ff9852a8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ff984615fa0 RCX: 00007ff98439ce59 RDX: 0000000000000050 RSI: 00002000000003c0 RDI: 000000000000000a RBP: 00007ff984432e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff984616038 R14: 00007ff984615fa0 R15: 00007ffc02b56c38