------------[ cut here ]------------ Illegal XDP return value 4294967274, expect packet loss! WARNING: CPU: 0 PID: 9 at net/core/filter.c:7195 bpf_warn_invalid_xdp_action+0x55/0x60 net/core/filter.c:7193 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.9.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d6/0x29e lib/dump_stack.c:118 panic+0x2c0/0x800 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:bpf_warn_invalid_xdp_action+0x55/0x60 net/core/filter.c:7193 Code: e8 70 aa f7 fa 83 fb 04 48 c7 c0 35 e4 29 89 48 c7 c6 3d e4 29 89 48 0f 47 f0 48 c7 c7 08 e4 29 89 89 da 31 c0 e8 cb 44 c9 fa <0f> 0b 5b c3 0f 1f 80 00 00 00 00 55 41 57 41 56 41 55 41 54 53 50 RSP: 0018:ffffc90000cff920 EFLAGS: 00010246 RAX: 679b8aae20101d00 RBX: 00000000ffffffea RCX: ffff8880a9a32240 RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000 RBP: 00000000ffffffea R08: ffffffff815e27d0 R09: ffffed1015d062c0 R10: ffffed1015d062c0 R11: 0000000000000000 R12: ffff8880a7178970 R13: dffffc0000000000 R14: ffffc90000cffb08 R15: ffff8880a7178910 netif_receive_generic_xdp+0xe65/0x12f0 net/core/dev.c:4692 do_xdp_generic net/core/dev.c:4740 [inline] __netif_receive_skb_core+0x52c/0x36e0 net/core/dev.c:5112 __netif_receive_skb_one_core net/core/dev.c:5284 [inline] __netif_receive_skb+0xe3/0x3c0 net/core/dev.c:5400 process_backlog+0x578/0xa10 net/core/dev.c:6242 napi_poll net/core/dev.c:6688 [inline] net_rx_action+0x655/0x1200 net/core/dev.c:6758 __do_softirq+0x256/0x6d5 kernel/softirq.c:298 run_ksoftirqd+0xa1/0x130 kernel/softirq.c:652 smpboot_thread_fn+0x572/0x970 kernel/smpboot.c:165 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds..