------------[ cut here ]------------
Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 0 PID: 2041 at net/core/filter.c:5537 bpf_warn_invalid_xdp_action net/core/filter.c:5537 [inline]
WARNING: CPU: 0 PID: 2041 at net/core/filter.c:5537 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:5533
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2041 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:bpf_warn_invalid_xdp_action net/core/filter.c:5537 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:5533
Code: e0 4a 4d 89 41 83 fc 04 48 c7 c6 20 4b 4d 89 48 0f 46 ee e8 53 5c e3 fa 44 89 e2 48 c7 c7 60 4b 4d 89 48 89 ee e8 26 94 73 01 <0f> 0b 5b 5d 41 5c e9 36 5c e3 fa 66 0f 1f 44 00 00 41 54 55 89 fd
IPVS: ftp: loaded support on port[0] = 21
RSP: 0018:ffff8880ba007cb8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff814dff01 RDI: ffffed1017400f89
RBP: ffffffff894d4ae0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffea
R13: ffff8880ba007dc0 R14: ffff8880af092000 R15: dffffc0000000000
 veth_xdp_rcv_skb drivers/net/veth.c:550 [inline]
 veth_xdp_rcv drivers/net/veth.c:601 [inline]
 veth_poll+0x1498/0x3490 drivers/net/veth.c:621
 napi_poll net/core/dev.c:6280 [inline]
 net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1092
 </IRQ>
 do_softirq.part.0+0x160/0x1c0 kernel/softirq.c:336
 do_softirq kernel/softirq.c:328 [inline]
 __local_bh_enable_ip+0x20e/0x270 kernel/softirq.c:189
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:721 [inline]
 __dev_queue_xmit+0x1628/0x2e00 net/core/dev.c:3865
 __bpf_tx_skb net/core/filter.c:2015 [inline]
 __bpf_redirect_common net/core/filter.c:2054 [inline]
 __bpf_redirect+0x746/0xbc0 net/core/filter.c:2061
 ____bpf_clone_redirect net/core/filter.c:2094 [inline]
 bpf_clone_redirect+0x2c0/0x430 net/core/filter.c:2066
 ___bpf_prog_run+0x1bfa/0x4e80 kernel/bpf/core.c:1184
audit: type=1800 audit(1676688764.426:604): pid=2039 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=15046 res=0
Kernel Offset: disabled
Rebooting in 86400 seconds..