Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.74' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 71.874296][ T6567] A link change request failed with some changes committed already. Interface eth0 may have been left with an inconsistent configuration, please check. [ 71.897011][ C0] ------------[ cut here ]------------ [ 71.902665][ C0] Illegal XDP return value 4294967274, expect packet loss! [ 71.910612][ C0] WARNING: CPU: 0 PID: 6568 at net/core/filter.c:8177 bpf_warn_invalid_xdp_action+0x6f/0x80 [ 71.920816][ C0] Modules linked in: [ 71.924791][ C0] CPU: 0 PID: 6568 Comm: syz-executor840 Not tainted 5.15.0-rc2-syzkaller #0 [ 71.933569][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.943766][ C0] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 [ 71.950280][ C0] Code: 20 a4 8c 8a 41 83 fc 04 48 c7 c6 60 a4 8c 8a 48 0f 46 ee e8 b3 b8 4d fa 44 89 e2 48 c7 c7 a0 a4 8c 8a 48 89 ee e8 4d 1c ca 01 <0f> 0b 5b 5d 41 5c e9 96 b8 4d fa 66 0f 1f 44 00 00 41 57 41 56 49 [ 71.970148][ C0] RSP: 0018:ffffc90000007a78 EFLAGS: 00010282 [ 71.976294][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.984304][ C0] RDX: ffff88801bbc8000 RSI: ffffffff815dbe08 RDI: fffff52000000f41 [ 71.992363][ C0] RBP: ffffffff8a8ca420 R08: 0000000000000000 R09: 0000000000000000 [ 72.000475][ C0] R10: ffffffff815d5bae R11: 0000000000000000 R12: 00000000ffffffea [ 72.008528][ C0] R13: 00000000ffffffea R14: 00000000ffffffea R15: 00000000ffffff90 [ 72.016611][ C0] FS: 0000555555c29300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 72.025649][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.032260][ C0] CR2: 00007fb31255d130 CR3: 000000001b115000 CR4: 00000000003506f0 [ 72.040300][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.048622][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.056677][ C0] Call Trace: [ 72.059969][ C0] [ 72.062813][ C0] do_xdp_generic.part.0+0x80b/0xa00 [ 72.068196][ C0] ? generic_xdp_tx+0x6b0/0x6b0 [ 72.073263][ C0] __netif_receive_skb_core+0x11b0/0x3640 [ 72.079081][ C0] ? do_xdp_generic+0x40/0x40 [ 72.083793][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.089877][ C0] __netif_receive_skb_one_core+0xae/0x180 [ 72.095774][ C0] ? __netif_receive_skb_core+0x3640/0x3640 [ 72.101694][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 72.106776][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 72.111743][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 72.116759][ C0] __netif_receive_skb+0x24/0x1b0 [ 72.121920][ C0] process_backlog+0x2a5/0x6c0 [ 72.126759][ C0] __napi_poll+0xaf/0x440 [ 72.131113][ C0] net_rx_action+0x801/0xb40 [ 72.135793][ C0] ? napi_threaded_poll+0x520/0x520 [ 72.141020][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 72.145954][ C0] __do_softirq+0x29b/0x9c2 [ 72.150490][ C0] do_softirq.part.0+0xde/0x130 [ 72.155434][ C0] [ 72.158374][ C0] ? netlink_create+0x3c2/0x5e0 [ 72.163229][ C0] __local_bh_enable_ip+0x102/0x120 [ 72.168511][ C0] netlink_create+0x402/0x5e0 [ 72.173310][ C0] ? rtnl_af_register+0xd0/0xd0 [ 72.178228][ C0] __sock_create+0x353/0x790 [ 72.182875][ C0] __sys_socket+0xef/0x200 [ 72.187357][ C0] ? compat_sock_ioctl+0x6d0/0x6d0 [ 72.192505][ C0] __x64_sys_socket+0x6f/0xb0 [ 72.197329][ C0] ? syscall_enter_from_user_mode+0x21/0x70 [ 72.203261][ C0] do_syscall_64+0x35/0xb0 [ 72.207742][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.213656][ C0] RIP: 0033:0x7fb3124eb209 [ 72.218150][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 72.237931][ C0] RSP: 002b:00007ffdf172a6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 72.246422][ C0] RAX: ffffffffffffffda RBX: 00000000000118bc RCX: 00007fb3124eb209 [ 72.254417][ C0] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 [ 72.262457][ C0] RBP: 0000000000000000 R08: 00007ffdf172a898 R09: 00007ffdf172a898 [ 72.270505][ C0] R10: 00007ffdf172a898 R11: 0000000000000246 R12: 00007ffdf172a70c [ 72.278547][ C0] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 72.286748][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 72.293364][ C0] CPU: 0 PID: 6568 Comm: syz-executor840 Not tainted 5.15.0-rc2-syzkaller #0 [ 72.302121][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.312178][ C0] Call Trace: [ 72.315454][ C0] [ 72.318293][ C0] dump_stack_lvl+0xcd/0x134 [ 72.322969][ C0] panic+0x2b0/0x6dd [ 72.326861][ C0] ? __warn_printk+0xf3/0xf3 [ 72.331453][ C0] ? __warn.cold+0x1a/0x44 [ 72.335863][ C0] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 72.341666][ C0] __warn.cold+0x35/0x44 [ 72.345899][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.352135][ C0] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 72.357945][ C0] report_bug+0x1bd/0x210 [ 72.362301][ C0] handle_bug+0x3c/0x60 [ 72.366459][ C0] exc_invalid_op+0x14/0x40 [ 72.370976][ C0] asm_exc_invalid_op+0x12/0x20 [ 72.375824][ C0] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 [ 72.382239][ C0] Code: 20 a4 8c 8a 41 83 fc 04 48 c7 c6 60 a4 8c 8a 48 0f 46 ee e8 b3 b8 4d fa 44 89 e2 48 c7 c7 a0 a4 8c 8a 48 89 ee e8 4d 1c ca 01 <0f> 0b 5b 5d 41 5c e9 96 b8 4d fa 66 0f 1f 44 00 00 41 57 41 56 49 [ 72.401838][ C0] RSP: 0018:ffffc90000007a78 EFLAGS: 00010282 [ 72.407896][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 72.415861][ C0] RDX: ffff88801bbc8000 RSI: ffffffff815dbe08 RDI: fffff52000000f41 [ 72.423845][ C0] RBP: ffffffff8a8ca420 R08: 0000000000000000 R09: 0000000000000000 [ 72.431909][ C0] R10: ffffffff815d5bae R11: 0000000000000000 R12: 00000000ffffffea [ 72.439875][ C0] R13: 00000000ffffffea R14: 00000000ffffffea R15: 00000000ffffff90 [ 72.447859][ C0] ? wake_up_klogd.part.0+0x8e/0xd0 [ 72.453054][ C0] ? vprintk+0x88/0x90 [ 72.457291][ C0] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 72.463097][ C0] do_xdp_generic.part.0+0x80b/0xa00 [ 72.468381][ C0] ? generic_xdp_tx+0x6b0/0x6b0 [ 72.473231][ C0] __netif_receive_skb_core+0x11b0/0x3640 [ 72.478948][ C0] ? do_xdp_generic+0x40/0x40 [ 72.483635][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.489642][ C0] __netif_receive_skb_one_core+0xae/0x180 [ 72.495446][ C0] ? __netif_receive_skb_core+0x3640/0x3640 [ 72.501333][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 72.506364][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 72.511293][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 72.516225][ C0] __netif_receive_skb+0x24/0x1b0 [ 72.521246][ C0] process_backlog+0x2a5/0x6c0 [ 72.526014][ C0] __napi_poll+0xaf/0x440 [ 72.530344][ C0] net_rx_action+0x801/0xb40 [ 72.534933][ C0] ? napi_threaded_poll+0x520/0x520 [ 72.540126][ C0] ? sched_clock_cpu+0x15/0x1f0 [ 72.544977][ C0] __do_softirq+0x29b/0x9c2 [ 72.549483][ C0] do_softirq.part.0+0xde/0x130 [ 72.554329][ C0] [ 72.557275][ C0] ? netlink_create+0x3c2/0x5e0 [ 72.562117][ C0] __local_bh_enable_ip+0x102/0x120 [ 72.567310][ C0] netlink_create+0x402/0x5e0 [ 72.571981][ C0] ? rtnl_af_register+0xd0/0xd0 [ 72.576844][ C0] __sock_create+0x353/0x790 [ 72.581432][ C0] __sys_socket+0xef/0x200 [ 72.585841][ C0] ? compat_sock_ioctl+0x6d0/0x6d0 [ 72.590970][ C0] __x64_sys_socket+0x6f/0xb0 [ 72.595639][ C0] ? syscall_enter_from_user_mode+0x21/0x70 [ 72.601620][ C0] do_syscall_64+0x35/0xb0 [ 72.606132][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 72.612016][ C0] RIP: 0033:0x7fb3124eb209 [ 72.616421][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 72.636019][ C0] RSP: 002b:00007ffdf172a6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 72.644452][ C0] RAX: ffffffffffffffda RBX: 00000000000118bc RCX: 00007fb3124eb209 [ 72.652434][ C0] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 [ 72.660481][ C0] RBP: 0000000000000000 R08: 00007ffdf172a898 R09: 00007ffdf172a898 [ 72.668454][ C0] R10: 00007ffdf172a898 R11: 0000000000000246 R12: 00007ffdf172a70c [ 72.676419][ C0] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 72.684806][ C0] Kernel Offset: disabled [ 72.689195][ C0] Rebooting in 86400 seconds..