------------[ cut here ]------------
Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 0 PID: 30847 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action net/core/filter.c:8188 [inline]
WARNING: CPU: 0 PID: 30847 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8184
Modules linked in:
CPU: 0 PID: 30847 Comm: syz-executor.5 Not tainted 5.16.0-rc7-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: 80 77 ae 8a 41 83 fc 04 48 c7 c6 c0 77 ae 8a 48 0f 46 ee e8 a3 83 42 fa 44 89 e2 48 c7 c7 00 78 ae 8a 48 89 ee e8 dd 71 cb 01 <0f> 0b 5b 5d 41 5c e9 86 83 42 fa 66 0f 1f 44 00 00 41 57 41 56 49
RSP: 0018:ffffc90000007a58 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888042e00000 RSI: ffffffff815f0948 RDI: fffff52000000f3d
RBP: ffffffff8aae7780 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff815ea6ee R11: 0000000000000000 R12: 00000000ffffffea
R13: 00000000ffffffea R14: 00000000ffffffea R15: 00000000ffffff90
FS:  00007f88c9444700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f88cabe3090 CR3: 0000000052f4f000 CR4: 00000000003506f0
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:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode+0x0/0x40 kernel/kcov.c:166
Code: 48 89 df e8 22 c0 46 00 e9 59 fe ff ff 48 8b 7c 24 08 e8 13 c0 46 00 e9 61 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc <65> 8b 05 79 e2 8a 7e 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10
RSP: 0018:ffffc9000487f668 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff888042e00000 RDI: 0000000000000003
RBP: 1ffff9200090fecf R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff872b7ee9 R11: 0000000000000000 R12: ffff88807b527c80
R13: ffff88807b527ca0 R14: 0000000000000040 R15: 000000000000004e
 write_comp_data kernel/kcov.c:221 [inline]
 __sanitizer_cov_trace_const_cmp4+0x1c/0x70 kernel/kcov.c:287
 trace_netif_rx include/trace/events/net.h:157 [inline]
 netif_rx_internal+0x459/0x640 net/core/dev.c:4907
 dev_forward_skb_nomtu+0x45/0x60 net/core/dev.c:2208
 __bpf_rx_skb net/core/filter.c:2084 [inline]
 __bpf_redirect_common net/core/filter.c:2153 [inline]
 __bpf_redirect+0x1c5/0xd20 net/core/filter.c:2160
 ____bpf_clone_redirect net/core/filter.c:2429 [inline]
 bpf_clone_redirect+0x2ae/0x420 net/core/filter.c:2401
 bpf_prog_a467eebe3b6cb835+0x59/0x808
 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+0x381/0x980 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: 0033:0x7f88caacee99
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:00007f88c9444168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f88cabe1f60 RCX: 00007f88caacee99
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007f88cab28ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc0114a6f R14: 00007f88c9444300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 89 df             	mov    %rbx,%rdi
   3:	e8 22 c0 46 00       	callq  0x46c02a
   8:	e9 59 fe ff ff       	jmpq   0xfffffe66
   d:	48 8b 7c 24 08       	mov    0x8(%rsp),%rdi
  12:	e8 13 c0 46 00       	callq  0x46c02a
  17:	e9 61 fd ff ff       	jmpq   0xfffffd7d
  1c:	cc                   	int3
  1d:	cc                   	int3
  1e:	cc                   	int3
  1f:	cc                   	int3
  20:	cc                   	int3
  21:	cc                   	int3
  22:	cc                   	int3
  23:	cc                   	int3
  24:	cc                   	int3
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
  29:	cc                   	int3
* 2a:	65 8b 05 79 e2 8a 7e 	mov    %gs:0x7e8ae279(%rip),%eax        # 0x7e8ae2aa <-- trapping instruction
  31:	89 c2                	mov    %eax,%edx
  33:	81 e2 00 01 00 00    	and    $0x100,%edx
  39:	a9 00 01 ff 00       	test   $0xff0100,%eax
  3e:	74 10                	je     0x50