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Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 0 PID: 17253 at net/core/filter.c:5537 bpf_warn_invalid_xdp_action net/core/filter.c:5537 [inline]
WARNING: CPU: 0 PID: 17253 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: 17253 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__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
RSP: 0018:ffff8880ba007a00 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff814dff01 RDI: ffffed1017400f32
RBP: ffffffff894d4ae0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880ba007b00
netif_receive_generic_xdp+0xcab/0x1540 net/core/dev.c:4390
do_xdp_generic.part.0+0x80/0x1a0 net/core/dev.c:4439
do_xdp_generic net/core/dev.c:4808 [inline]
__netif_receive_skb_core+0xd00/0x3270 net/core/dev.c:4808
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:4952
__netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
process_backlog+0x241/0x700 net/core/dev.c:5849
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
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:916
RIP: 0010:memcpy_erms+0x8/0x10 arch/x86/lib/memcpy_64.S:56
Code: 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe 7c 35
RSP: 0018:ffff88803f8e7760 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff04
RAX: ffff8880a2f9f9a8 RBX: ffff8880a2f9f980 RCX: 0000000000000000
RDX: 0000000000000030 RSI: ffff8880a4e29418 RDI: ffff8880a2f9f9d8
RBP: ffff8880a4e293c0 R08: 0000000000000001 R09: ffffed10145f3f3a
R10: ffff8880a2f9f9d7 R11: 00000000bb7aaff8 R12: 1ffff11007f1ceee
R13: ffff8880b035ed80 R14: 0000000000000000 R15: ffff8880a4e2944e
memcpy include/linux/string.h:377 [inline]
__copy_skb_header+0xfd/0x500 net/core/skbuff.c:810
__skb_clone+0x99/0x7c0 net/core/skbuff.c:865
skb_clone+0x1aa/0x3d0 net/core/skbuff.c:1300
____bpf_clone_redirect net/core/filter.c:2079 [inline]
bpf_clone_redirect+0xaf/0x430 net/core/filter.c:2066
___bpf_prog_run+0x1bfa/0x4e80 kernel/bpf/core.c:1184
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
0: 90 nop
1: 90 nop
2: eb 1e jmp 0x22
4: 0f 1f 00 nopl (%rax)
7: 48 89 f8 mov %rdi,%rax
a: 48 89 d1 mov %rdx,%rcx
d: 48 c1 e9 03 shr $0x3,%rcx
11: 83 e2 07 and $0x7,%edx
14: f3 48 a5 rep movsq %ds:(%rsi),%es:(%rdi)
17: 89 d1 mov %edx,%ecx
19: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi)
1b: c3 retq
1c: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
22: 48 89 f8 mov %rdi,%rax
25: 48 89 d1 mov %rdx,%rcx
28: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi)
* 2a: c3 retq <-- trapping instruction
2b: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
32: 48 89 f8 mov %rdi,%rax
35: 48 83 fa 20 cmp $0x20,%rdx
39: 72 7e jb 0xb9
3b: 40 38 fe cmp %dil,%sil
3e: 7c 35 jl 0x75