------------[ cut here ]------------
Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 1 PID: 503 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action net/core/filter.c:8188 [inline]
WARNING: CPU: 1 PID: 503 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8184
Modules linked in:
CPU: 1 PID: 503 Comm: syz-executor.5 Not tainted 5.16.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:bpf_warn_invalid_xdp_action net/core/filter.c:8188 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8184
Code: a0 f7 ad 8a 41 83 fc 04 48 c7 c6 e0 f7 ad 8a 48 0f 46 ee e8 33 be 41 fa 44 89 e2 48 c7 c7 20 f8 ad 8a 48 89 ee e8 d7 5a cb 01 <0f> 0b 5b 5d 41 5c e9 16 be 41 fa 66 0f 1f 44 00 00 41 57 41 56 49
RSP: 0018:ffffc90000fd8a58 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888077e88080 RSI: ffffffff815e3a18 RDI: fffff520001fb13d
RBP: ffffffff8aadf7a0 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff815dd7be R11: 0000000000000000 R12: 00000000ffffffea
R13: 00000000ffffffea R14: 00000000ffffffea R15: 00000000ffffff8e
FS:  00007f04cea3b700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2de26000 CR3: 000000007349a000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 netif_receive_generic_xdp net/core/dev.c:4830 [inline]
 do_xdp_generic.part.0+0x80b/0xa00 net/core/dev.c:4878
 do_xdp_generic net/core/dev.c:4873 [inline]
 __netif_receive_skb_core+0x11b7/0x3770 net/core/dev.c:5286
 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5463
 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579
 process_backlog+0x2a5/0x6c0 net/core/dev.c:6455
 __napi_poll+0xaf/0x440 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7177
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__bpf_prog_run512+0xc1/0xd0 kernel/bpf/core.c:1786
Code: c7 43 10 00 00 00 00 48 c7 43 54 00 00 00 00 48 8b 94 24 f8 02 00 00 65 48 2b 14 25 28 00 00 00 75 0c 48 81 c4 00 03 00 00 5b <5d> 41 5c c3 e8 46 e2 bf 07 66 0f 1f 44 00 00 48 b8 00 00 00 00 00
RSP: 0018:ffffc90004277a08 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9000485a000
RDX: 0000000000000000 RSI: ffffffff8183d9bb RDI: ffffffff8b37b728
RBP: ffffc900029fe048 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff872b7d36 R11: 0000000000000000 R12: ffff88801c76ce80
R13: ffffc900029fe000 R14: ffffc90004277c58 R15: ffffc900029fe048
 bpf_dispatcher_nop_func include/linux/bpf.h:727 [inline]
 __bpf_prog_run include/linux/filter.h:626 [inline]
 bpf_prog_run include/linux/filter.h:633 [inline]
 bpf_test_run+0x37c/0x970 net/bpf/test_run.c:120
 bpf_prog_test_run_skb+0xb32/0x1dd0 net/bpf/test_run.c:666
 bpf_prog_test_run kernel/bpf/syscall.c:3349 [inline]
 __sys_bpf+0x1823/0x5950 kernel/bpf/syscall.c:4651
 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4735 [inline]
 __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4735
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f04d00c5e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f04cea3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f04d01d8f60 RCX: 00007f04d00c5e99
RDX: 0000000000000048 RSI: 0000000020000040 RDI: 000000000000000a
RBP: 00007f04d011fff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbe3d0bef R14: 00007f04cea3b300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	c7 43 10 00 00 00 00 	movl   $0x0,0x10(%rbx)
   7:	48 c7 43 54 00 00 00 	movq   $0x0,0x54(%rbx)
   e:	00
   f:	48 8b 94 24 f8 02 00 	mov    0x2f8(%rsp),%rdx
  16:	00
  17:	65 48 2b 14 25 28 00 	sub    %gs:0x28,%rdx
  1e:	00 00
  20:	75 0c                	jne    0x2e
  22:	48 81 c4 00 03 00 00 	add    $0x300,%rsp
  29:	5b                   	pop    %rbx
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	41 5c                	pop    %r12
  2d:	c3                   	retq
  2e:	e8 46 e2 bf 07       	callq  0x7bfe279
  33:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
  39:	48                   	rex.W
  3a:	b8 00 00 00 00       	mov    $0x0,%eax