rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P15073/1:b..l (detected by 1, t=10502 jiffies, g=74265, q=1420) task:syz.1.3218 state:R running task stack:26464 pid:15073 ppid: 8248 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5049 [inline] __schedule+0x11bb/0x4390 kernel/sched/core.c:6395 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6799 irqentry_exit+0x63/0x70 kernel/entry/common.c:432 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:205 Code: 84 00 00 00 00 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 50 d3 f1 0b 48 89 de 5b e9 57 9e 43 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d a4 a3 8a 7e 65 8b 15 a5 a3 8a 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc90002fafab0 EFLAGS: 00000297 RAX: ffffffff87deae37 RBX: ffffc90002fafae8 RCX: ffff88807aca0000 RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000008 RBP: 0000000000000000 R08: ffff88807aca0000 R09: 0000000000000004 R10: 0000000000000003 R11: 0000000000000002 R12: ffffc90002fafd40 R13: ffffc9000112d030 R14: 0000000000000008 R15: 0000000000000000 ____bpf_redirect_peer net/core/filter.c:2528 [inline] bpf_redirect_peer+0x37/0x110 net/core/filter.c:2526 bpf_prog_4828d1dd8d747252+0x49/0x31c bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline] __bpf_prog_run include/linux/filter.h:621 [inline] bpf_prog_run include/linux/filter.h:635 [inline] bpf_test_run+0x498/0x7d0 net/bpf/test_run.c:119 bpf_prog_test_run_skb+0x9cc/0x1180 net/bpf/test_run.c:669 bpf_prog_test_run+0x31e/0x390 kernel/bpf/syscall.c:3374 __sys_bpf+0x535/0x670 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: 0033:0x7f2e7ee70749 RSP: 002b:00007f2e7d0d7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f2e7f0c6fa0 RCX: 00007f2e7ee70749 RDX: 000000000000004c RSI: 0000200000000240 RDI: 000000000000000a RBP: 00007f2e7eef4f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2e7f0c7038 R14: 00007f2e7f0c6fa0 R15: 00007ffc7faf4d88