------------[ cut here ]------------ Illegal XDP return value 4294967274, expect packet loss! WARNING: CPU: 1 PID: 30390 at net/core/filter.c:5537 bpf_warn_invalid_xdp_action net/core/filter.c:5537 [inline] WARNING: CPU: 1 PID: 30390 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: 1 PID: 30390 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 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 overlayfs: failed to resolve './fIle1': -2 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:ffff8880ba1079d0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff814dff01 RDI: ffffed1017420f2c RBP: ffffffff894d4ae0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffea R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880ba107ad0 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 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0x4b7/0x1400 arch/x86/kernel/unwind_orc.c:586 Code: 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 31 0c 00 00 41 c6 46 34 01 bf 01 00 00 00 e8 30 e7 17 00 65 8b 05 a9 59 d8 7e <85> c0 0f 84 99 04 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 RSP: 0018:ffff8880a27f73f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: 0000000080000001 RBX: 1ffff110144fee88 RCX: 0000000000000000 RDX: 0000000000000004 RSI: ffffffff8b9686a4 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffff8b9686a8 R09: ffffffff8b9686a4 R10: ffff8880a27f7587 R11: 0000000000074071 R12: ffff8880a27f7570 R13: ffff8880a27f755d R14: ffff8880a27f7528 R15: ffffffff8b9686a4 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc+0x122/0x370 mm/slab.c:3559 skb_clone+0x151/0x3d0 net/core/skbuff.c:1293 ____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: 04 02 add $0x2,%al 2: 48 89 fa mov %rdi,%rdx 5: 83 e2 07 and $0x7,%edx 8: 38 d0 cmp %dl,%al a: 7f 08 jg 0x14 c: 84 c0 test %al,%al e: 0f 85 31 0c 00 00 jne 0xc45 14: 41 c6 46 34 01 movb $0x1,0x34(%r14) 19: bf 01 00 00 00 mov $0x1,%edi 1e: e8 30 e7 17 00 callq 0x17e753 23: 65 8b 05 a9 59 d8 7e mov %gs:0x7ed859a9(%rip),%eax # 0x7ed859d3 * 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 0f 84 99 04 00 00 je 0x4cb 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 4c 89 f2 mov %r14,%rdx 3f: 48 rex.W