[ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.71' (ECDSA) to the list of known hosts. 2021/02/13 10:48:32 parsed 1 programs 2021/02/13 10:48:32 executed programs: 0 syzkaller login: [ 35.058275] IPVS: ftp: loaded support on port[0] = 21 [ 35.155841] chnl_net:caif_netlink_parms(): no params data found [ 35.236505] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.243479] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.250521] device bridge_slave_0 entered promiscuous mode [ 35.258234] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.264727] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.272029] device bridge_slave_1 entered promiscuous mode [ 35.289116] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 35.297852] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 35.316278] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 35.323628] team0: Port device team_slave_0 added [ 35.329000] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 35.337021] team0: Port device team_slave_1 added [ 35.351040] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 35.357365] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 35.382637] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 35.394356] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 35.400584] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 35.426008] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 35.436721] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 35.444388] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 35.464174] device hsr_slave_0 entered promiscuous mode [ 35.469863] device hsr_slave_1 entered promiscuous mode [ 35.476794] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 35.483959] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 35.547097] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.553580] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.560308] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.566936] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.597653] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 35.604570] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.613887] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 35.622715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.630779] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.638847] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.646031] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 35.656593] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 35.663045] 8021q: adding VLAN 0 to HW filter on device team0 [ 35.672134] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.679655] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.686030] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.703117] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.710717] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.717218] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.724425] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 35.733406] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 35.740862] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.748956] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 35.758077] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.767887] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 35.774414] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 35.787517] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 35.795074] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 35.802655] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 35.812913] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 35.825261] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 35.834408] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.867034] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 35.874629] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 35.881700] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 35.890478] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.898398] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.905554] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.915500] device veth0_vlan entered promiscuous mode [ 35.924330] device veth1_vlan entered promiscuous mode [ 35.930113] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 35.939164] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 35.950089] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 35.959744] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 35.968246] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 35.976009] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.985470] device veth0_macvtap entered promiscuous mode [ 35.992329] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 36.000771] device veth1_macvtap entered promiscuous mode [ 36.009906] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 36.019681] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 36.029752] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 36.036889] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 36.045273] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 36.054835] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 36.061796] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 36.165121] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 36.172602] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 36.188602] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 36.194721] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 36.204555] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 36.216210] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 36.223721] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 36.230408] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 36.262204] [ 36.263935] ********************************************************** [ 36.272308] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 36.279549] ** ** [ 36.287270] ** trace_printk() being used. Allocating extra memory. ** [ 36.294694] ** ** [ 36.302290] ** This means that this is a DEBUG kernel and it is ** [ 36.308944] ** unsafe for production use. ** [ 36.316565] ** ** [ 36.323784] ** If you see this message and you are not debugging ** [ 36.330504] ** the kernel, report this immediately to your vendor! ** [ 36.337952] ** ** [ 36.345135] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 36.352223] ********************************************************** [ 36.388119] WARNING: CPU: 0 PID: 8345 at kernel/tracepoint.c:256 tracepoint_add_func+0x254/0x820 [ 36.397148] Kernel panic - not syncing: panic_on_warn set ... [ 36.397148] [ 36.404504] CPU: 0 PID: 8345 Comm: syz-executor.0 Not tainted 4.19.172-syzkaller #0 [ 36.412278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.421613] Call Trace: [ 36.424200] dump_stack+0x1fc/0x2ef [ 36.427810] panic+0x26a/0x50e [ 36.430981] ? __warn_printk+0xf3/0xf3 [ 36.434852] ? tracepoint_add_func+0x254/0x820 [ 36.439415] ? __probe_kernel_read+0x130/0x1b0 [ 36.443978] ? __warn.cold+0x5/0x5a [ 36.447583] ? __warn+0xe4/0x200 [ 36.450938] ? tracepoint_add_func+0x254/0x820 [ 36.455516] __warn.cold+0x20/0x5a [ 36.459038] ? tracepoint_add_func+0x254/0x820 [ 36.463599] report_bug+0x262/0x2b0 [ 36.467206] do_error_trap+0x1d7/0x310 [ 36.471073] ? math_error+0x310/0x310 [ 36.474862] ? lock_acquire+0x170/0x3c0 [ 36.478842] ? error_entry+0x72/0xd0 [ 36.482540] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.487541] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.492372] invalid_op+0x14/0x20 [ 36.495811] RIP: 0010:tracepoint_add_func+0x254/0x820 [ 36.500993] Code: 44 24 20 48 8b 5b 08 80 38 00 0f 85 0e 05 00 00 48 8b 44 24 08 48 3b 58 08 0f 85 2d ff ff ff 41 bc ef ff ff ff e8 fc c2 fe ff <0f> 0b e8 f5 c2 fe ff 44 89 e0 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e [ 36.519892] RSP: 0018:ffff88809d5cfb58 EFLAGS: 00010293 [ 36.525238] RAX: ffff8880951b0000 RBX: ffffc90001a03000 RCX: ffffffff81639662 [ 36.532491] RDX: 0000000000000000 RSI: ffffffff816396c4 RDI: ffff8880b0b0f918 [ 36.539742] RBP: ffffffff81ec1030 R08: 0000000000000000 R09: 000000000000000a [ 36.546997] R10: 0000000000000004 R11: 00000000f9b4e5ce R12: 00000000ffffffef [ 36.554337] R13: 0000000000000000 R14: ffff8880b0b0f910 R15: dffffc0000000000 [ 36.561602] ? __bpf_trace_ext4_alloc_da_blocks+0xc0/0xc0 [ 36.567124] ? tracepoint_add_func+0x1f2/0x820 [ 36.571690] ? tracepoint_add_func+0x254/0x820 [ 36.576256] ? tracepoint_add_func+0x254/0x820 [ 36.580831] ? __bpf_trace_ext4_alloc_da_blocks+0xc0/0xc0 [ 36.586374] ? __bpf_trace_ext4_alloc_da_blocks+0xc0/0xc0 [ 36.591899] tracepoint_probe_register+0x9c/0xe0 [ 36.596635] ? tracepoint_module_notify+0x5f0/0x5f0 [ 36.603546] ? __bpf_trace_ext4_alloc_da_blocks+0xc0/0xc0 [ 36.609070] bpf_probe_register+0xe6/0x140 [ 36.613288] bpf_raw_tracepoint_open+0x1bd/0x350 [ 36.618025] ? bpf_prog_release+0x50/0x50 [ 36.622173] ? __might_fault+0xef/0x1d0 [ 36.626131] ? __might_fault+0x192/0x1d0 [ 36.630178] ? security_bpf+0x83/0xb0 [ 36.633964] __se_sys_bpf+0x1069/0x3a20 [ 36.637920] ? kmem_cache_free+0x226/0x260 [ 36.642136] ? bpf_prog_load+0x1240/0x1240 [ 36.646359] ? __se_sys_futex+0x28f/0x3b0 [ 36.650512] ? __se_sys_futex+0x298/0x3b0 [ 36.654660] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.660012] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.665028] ? do_syscall_64+0x21/0x620 [ 36.668984] do_syscall_64+0xf9/0x620 [ 36.672770] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.677942] RIP: 0033:0x465d99 [ 36.681128] 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 [ 36.700025] RSP: 002b:00007f418307e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 36.707717] RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465d99 [ 36.714971] RDX: 0000000000000010 RSI: 0000000020000180 RDI: 0000000000000011 [ 36.722221] RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000 [ 36.729469] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 [ 36.736720] R13: 00007ffd973122af R14: 00007f418307e300 R15: 0000000000022000 [ 36.744632] Kernel Offset: disabled [ 36.748298] Rebooting in 86400 seconds..