[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.216' (ECDSA) to the list of known hosts. syzkaller login: [ 136.083453][ T1165] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.092170][ T10] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.100140][ T10] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.125065][ T1165] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.136205][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 136.154212][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 136.174464][ T1165] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.218445][ T1165] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.236970][ T10] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.255240][ T10] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.267301][ T254] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.275490][ T6687] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 136.290834][ T6687] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 136.298243][ T254] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.323591][ T6687] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 136.351928][ T254] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.359896][ T254] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.408469][ T6687] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 136.419983][ T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.441911][ T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 136.452304][ T6687] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 136.459945][ T149] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.482585][ T149] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.500852][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 136.553331][ T149] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.568960][ T149] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 136.595433][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 136.617778][ T149] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.654046][ T149] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.720073][ T6688] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 136.735015][ C1] ------------[ cut here ]------------ [ 136.740690][ C1] Illegal XDP return value 4294967283, expect packet loss! [ 136.748718][ C1] WARNING: CPU: 1 PID: 20 at net/core/filter.c:8186 bpf_warn_invalid_xdp_action+0x6f/0x80 [ 136.758736][ C1] Modules linked in: [ 136.762711][ C1] CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.15.0-rc6-syzkaller #0 [ 136.771020][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 136.781135][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 136.787143][ C1] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 [ 136.793628][ C1] Code: a0 e8 8c 8a 41 83 fc 04 48 c7 c6 e0 e8 8c 8a 48 0f 46 ee e8 03 69 4c fa 44 89 e2 48 c7 c7 20 e9 8c 8a 48 89 ee e8 08 70 cb 01 <0f> 0b 5b 5d 41 5c e9 e6 68 4c fa 66 0f 1f 44 00 00 41 57 41 56 49 [ 136.813326][ C1] RSP: 0018:ffffc90000dc0948 EFLAGS: 00010286 [ 136.819431][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 136.827567][ C1] RDX: ffff888011fc0000 RSI: ffffffff815e9b28 RDI: fffff520001b811b [ 136.835605][ C1] RBP: ffffffff8a8ce8a0 R08: 0000000000000000 R09: 0000000000000000 [ 136.843642][ C1] R10: ffffffff815e38ce R11: 0000000000000000 R12: 00000000fffffff3 [ 136.851672][ C1] R13: 00000000fffffff3 R14: 00000000fffffff3 R15: 00000000ffffffd8 [ 136.859662][ C1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 136.868687][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 136.875349][ C1] CR2: 0000564ffbdb3238 CR3: 000000000b68e000 CR4: 00000000003506e0 [ 136.883391][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 136.891459][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 136.899454][ C1] Call Trace: [ 136.902801][ C1] [ 136.905657][ C1] do_xdp_generic.part.0+0x80b/0xa00 [ 136.911010][ C1] ? generic_xdp_tx+0x6b0/0x6b0 [ 136.915891][ C1] ? __lock_acquire+0xbc2/0x54a0 [ 136.920858][ C1] ? lock_chain_count+0x20/0x20 [ 136.925795][ C1] __netif_receive_skb_core+0x11b7/0x3770 [ 136.931575][ C1] ? __lock_acquire+0x1610/0x54a0 [ 136.936632][ C1] ? do_xdp_generic+0x40/0x40 [ 136.941479][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 136.947480][ C1] ? find_held_lock+0x2d/0x110 [ 136.952322][ C1] __netif_receive_skb_list_core+0x338/0x8e0 [ 136.958347][ C1] ? process_backlog+0x6c0/0x6c0 [ 136.963397][ C1] ? ktime_get_with_offset+0x3f2/0x500 [ 136.968989][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 136.974391][ C1] netif_receive_skb_list_internal+0x75e/0xd80 [ 136.980583][ C1] ? __netif_receive_skb_list_core+0x8e0/0x8e0 [ 136.986819][ C1] ? find_held_lock+0x2d/0x110 [ 136.991684][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 136.996580][ C1] netif_receive_skb_list+0x54/0x5b0 [ 137.001981][ C1] ieee80211_rx_napi+0x34c/0x3d0 [ 137.006942][ C1] ? ieee80211_rx_list+0x2780/0x2780 [ 137.012331][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 137.017735][ C1] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 137.023652][ C1] ieee80211_tasklet_handler+0xd4/0x130 [ 137.029228][ C1] tasklet_action_common.constprop.0+0x201/0x2e0 [ 137.035671][ C1] __do_softirq+0x29b/0x9c2 [ 137.040211][ C1] do_softirq.part.0+0xde/0x130 [ 137.045182][ C1] [ 137.048126][ C1] ? ip6_finish_output2+0x737/0x1500 [ 137.053515][ C1] __local_bh_enable_ip+0x102/0x120 [ 137.058743][ C1] ip6_finish_output2+0x765/0x1500 [ 137.064116][ C1] __ip6_finish_output+0x4c1/0x1050 [ 137.069350][ C1] ip6_finish_output+0x32/0x200 [ 137.074324][ C1] ip6_output+0x1e4/0x530 [ 137.078681][ C1] ndisc_send_skb+0xa99/0x17f0 [ 137.083556][ C1] ? ndisc_ifinfo_sysctl_change+0x5f0/0x5f0 [ 137.089484][ C1] ? ndisc_parse_options.part.0+0x510/0x510 [ 137.095498][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 137.101159][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 137.107438][ C1] ? skb_set_owner_w+0x269/0x420 [ 137.112471][ C1] ndisc_send_ns+0x3a9/0x840 [ 137.117087][ C1] ? pndisc_redo+0x20/0x20 [ 137.121712][ C1] ? mark_held_locks+0x9f/0xe0 [ 137.126512][ C1] ? __local_bh_enable_ip+0xa0/0x120 [ 137.131991][ C1] addrconf_dad_work+0xc3f/0x1340 [ 137.137052][ C1] ? addrconf_dad_completed+0xd60/0xd60 [ 137.142701][ C1] process_one_work+0x9bf/0x16b0 [ 137.147674][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 137.153142][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 137.158102][ C1] ? _raw_spin_lock_irq+0x41/0x50 [ 137.163233][ C1] worker_thread+0x658/0x11f0 [ 137.167960][ C1] ? process_one_work+0x16b0/0x16b0 [ 137.173262][ C1] kthread+0x3e5/0x4d0 [ 137.177352][ C1] ? set_kthread_struct+0x130/0x130 [ 137.182650][ C1] ret_from_fork+0x1f/0x30 [ 137.187134][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 137.193850][ C1] CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.15.0-rc6-syzkaller #0 [ 137.202188][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.212254][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 137.218250][ C1] Call Trace: [ 137.221529][ C1] [ 137.224386][ C1] dump_stack_lvl+0xcd/0x134 [ 137.228997][ C1] panic+0x2b0/0x6dd [ 137.233056][ C1] ? __warn_printk+0xf3/0xf3 [ 137.237678][ C1] ? __warn.cold+0x1a/0x44 [ 137.242112][ C1] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 137.247942][ C1] __warn.cold+0x35/0x44 [ 137.252196][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 137.258452][ C1] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 137.264273][ C1] report_bug+0x1bd/0x210 [ 137.268619][ C1] handle_bug+0x3c/0x60 [ 137.272878][ C1] exc_invalid_op+0x14/0x40 [ 137.277400][ C1] asm_exc_invalid_op+0x12/0x20 [ 137.282266][ C1] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 [ 137.288697][ C1] Code: a0 e8 8c 8a 41 83 fc 04 48 c7 c6 e0 e8 8c 8a 48 0f 46 ee e8 03 69 4c fa 44 89 e2 48 c7 c7 20 e9 8c 8a 48 89 ee e8 08 70 cb 01 <0f> 0b 5b 5d 41 5c e9 e6 68 4c fa 66 0f 1f 44 00 00 41 57 41 56 49 [ 137.308334][ C1] RSP: 0018:ffffc90000dc0948 EFLAGS: 00010286 [ 137.314417][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 137.322422][ C1] RDX: ffff888011fc0000 RSI: ffffffff815e9b28 RDI: fffff520001b811b [ 137.330407][ C1] RBP: ffffffff8a8ce8a0 R08: 0000000000000000 R09: 0000000000000000 [ 137.338389][ C1] R10: ffffffff815e38ce R11: 0000000000000000 R12: 00000000fffffff3 [ 137.346457][ C1] R13: 00000000fffffff3 R14: 00000000fffffff3 R15: 00000000ffffffd8 [ 137.354449][ C1] ? wake_up_klogd.part.0+0x8e/0xd0 [ 137.359679][ C1] ? vprintk+0x88/0x90 [ 137.363767][ C1] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 137.369587][ C1] do_xdp_generic.part.0+0x80b/0xa00 [ 137.374893][ C1] ? generic_xdp_tx+0x6b0/0x6b0 [ 137.379757][ C1] ? __lock_acquire+0xbc2/0x54a0 [ 137.384797][ C1] ? lock_chain_count+0x20/0x20 [ 137.389677][ C1] __netif_receive_skb_core+0x11b7/0x3770 [ 137.395413][ C1] ? __lock_acquire+0x1610/0x54a0 [ 137.400462][ C1] ? do_xdp_generic+0x40/0x40 [ 137.405172][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 137.411167][ C1] ? find_held_lock+0x2d/0x110 [ 137.415948][ C1] __netif_receive_skb_list_core+0x338/0x8e0 [ 137.421960][ C1] ? process_backlog+0x6c0/0x6c0 [ 137.426913][ C1] ? ktime_get_with_offset+0x3f2/0x500 [ 137.432397][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 137.437626][ C1] netif_receive_skb_list_internal+0x75e/0xd80 [ 137.443809][ C1] ? __netif_receive_skb_list_core+0x8e0/0x8e0 [ 137.449977][ C1] ? find_held_lock+0x2d/0x110 [ 137.454763][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 137.459640][ C1] netif_receive_skb_list+0x54/0x5b0 [ 137.464947][ C1] ieee80211_rx_napi+0x34c/0x3d0 [ 137.469901][ C1] ? ieee80211_rx_list+0x2780/0x2780 [ 137.475203][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 137.480505][ C1] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 137.486335][ C1] ieee80211_tasklet_handler+0xd4/0x130 [ 137.491903][ C1] tasklet_action_common.constprop.0+0x201/0x2e0 [ 137.498258][ C1] __do_softirq+0x29b/0x9c2 [ 137.502791][ C1] do_softirq.part.0+0xde/0x130 [ 137.507659][ C1] [ 137.510592][ C1] ? ip6_finish_output2+0x737/0x1500 [ 137.515892][ C1] __local_bh_enable_ip+0x102/0x120 [ 137.521109][ C1] ip6_finish_output2+0x765/0x1500 [ 137.526246][ C1] __ip6_finish_output+0x4c1/0x1050 [ 137.531471][ C1] ip6_finish_output+0x32/0x200 [ 137.536345][ C1] ip6_output+0x1e4/0x530 [ 137.540716][ C1] ndisc_send_skb+0xa99/0x17f0 [ 137.545502][ C1] ? ndisc_ifinfo_sysctl_change+0x5f0/0x5f0 [ 137.551412][ C1] ? ndisc_parse_options.part.0+0x510/0x510 [ 137.557315][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 137.562889][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 137.569147][ C1] ? skb_set_owner_w+0x269/0x420 [ 137.574113][ C1] ndisc_send_ns+0x3a9/0x840 [ 137.578720][ C1] ? pndisc_redo+0x20/0x20 [ 137.583145][ C1] ? mark_held_locks+0x9f/0xe0 [ 137.587925][ C1] ? __local_bh_enable_ip+0xa0/0x120 [ 137.593233][ C1] addrconf_dad_work+0xc3f/0x1340 [ 137.598276][ C1] ? addrconf_dad_completed+0xd60/0xd60 [ 137.603866][ C1] process_one_work+0x9bf/0x16b0 [ 137.608825][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 137.614220][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 137.619312][ C1] ? _raw_spin_lock_irq+0x41/0x50 [ 137.624372][ C1] worker_thread+0x658/0x11f0 [ 137.629087][ C1] ? process_one_work+0x16b0/0x16b0 [ 137.634301][ C1] kthread+0x3e5/0x4d0 [ 137.638393][ C1] ? set_kthread_struct+0x130/0x130 [ 137.643612][ C1] ret_from_fork+0x1f/0x30 [ 137.648432][ C1] Kernel Offset: disabled [ 137.652818][ C1] Rebooting in 86400 seconds..