Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.39' (ECDSA) to the list of known hosts. syzkaller login: [ 33.818611] IPVS: ftp: loaded support on port[0] = 21 [ 33.901747] chnl_net:caif_netlink_parms(): no params data found [ 33.977320] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.984648] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.991824] device bridge_slave_0 entered promiscuous mode [ 33.999372] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.005852] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.012842] device bridge_slave_1 entered promiscuous mode [ 34.030330] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 34.039126] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 34.056782] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 34.065278] team0: Port device team_slave_0 added [ 34.070739] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 34.078675] team0: Port device team_slave_1 added [ 34.094812] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 34.101068] 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. [ 34.127062] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 34.138815] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 34.145556] 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. [ 34.171631] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 34.182717] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 34.190572] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 34.210319] device hsr_slave_0 entered promiscuous mode [ 34.216071] device hsr_slave_1 entered promiscuous mode [ 34.223282] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 34.231300] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 34.295226] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.301778] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.308629] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.315031] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.346394] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 34.352464] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.361271] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 34.370006] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.379344] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.386546] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.393497] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 34.404008] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 34.410096] 8021q: adding VLAN 0 to HW filter on device team0 [ 34.425961] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 34.433556] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.440011] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.446869] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 34.454614] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.461000] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.471214] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 34.480686] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 34.489420] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 34.500740] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 34.511132] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 34.521945] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 34.528495] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 34.535852] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 34.548512] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 34.556934] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 34.563592] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 34.574787] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 34.587522] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 34.597116] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 34.630477] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 34.637657] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 34.645235] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 34.654187] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 34.661575] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 34.668635] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 34.677269] device veth0_vlan entered promiscuous mode [ 34.686136] device veth1_vlan entered promiscuous mode [ 34.691995] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 34.701227] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 34.713511] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 34.723247] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 34.731105] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 34.739414] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 34.748367] device veth0_macvtap entered promiscuous mode [ 34.755499] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 34.763928] device veth1_macvtap entered promiscuous mode [ 34.772288] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 34.781632] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 34.793056] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 34.800393] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 34.809101] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 34.819966] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 34.827245] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 34.937467] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 34.944698] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 34.962150] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 34.962831] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 34.975724] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 34.987138] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 34.995674] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 35.002717] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 35.020417] ------------[ cut here ]------------ [ 35.026033] memory commitment underflow [ 35.026165] WARNING: CPU: 1 PID: 4699 at mm/util.c:668 __vm_enough_memory+0x516/0x650 [ 35.038089] Kernel panic - not syncing: panic_on_warn set ... [ 35.038089] [ 35.045449] CPU: 1 PID: 4699 Comm: systemd-udevd Not tainted 4.19.211-syzkaller #0 [ 35.053149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.062502] Call Trace: [ 35.065091] dump_stack+0x1fc/0x2ef [ 35.068701] panic+0x26a/0x50e [ 35.071874] ? __warn_printk+0xf3/0xf3 [ 35.075744] ? __vm_enough_memory+0x516/0x650 [ 35.080221] ? __probe_kernel_read+0x130/0x1b0 [ 35.084782] ? __warn.cold+0x5/0x5a [ 35.088388] ? __warn+0xe4/0x200 [ 35.091734] ? __vm_enough_memory+0x516/0x650 [ 35.096228] __warn.cold+0x20/0x5a [ 35.099750] ? kvm_sched_clock_read+0x14/0x40 [ 35.104239] ? __vm_enough_memory+0x516/0x650 [ 35.108729] report_bug+0x262/0x2b0 [ 35.112349] do_error_trap+0x1d7/0x310 [ 35.116232] ? math_error+0x310/0x310 [ 35.120026] ? mark_held_locks+0xa6/0xf0 [ 35.124069] ? vprintk_emit+0x22d/0x740 [ 35.128039] ? error_entry+0x72/0xd0 [ 35.131735] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.136732] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.141559] invalid_op+0x14/0x20 [ 35.144992] RIP: 0010:__vm_enough_memory+0x516/0x650 [ 35.150073] Code: 09 31 ff 89 de e8 aa e9 db ff 84 db 0f 85 a9 fb ff ff e8 6d e8 db ff 48 c7 c7 20 eb 71 88 c6 05 1c 0e 88 09 01 e8 3f 20 6c 06 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 [ 35.168963] RSP: 0018:ffff88809ae4fb90 EFLAGS: 00010282 [ 35.174306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 35.181558] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10135c9f64 [ 35.188819] RBP: 000000000000000a R08: 0000000000000000 R09: 000000000000073b [ 35.196077] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000001 [ 35.203325] R13: fff8000000005a67 R14: ffffffff8a009dc0 R15: 0000000000000d2b [ 35.210592] ? vprintk_func+0x81/0x180 [ 35.214483] copy_process.part.0+0x3414/0x8260 [ 35.219062] ? __cleanup_sighand+0x60/0x60 [ 35.223286] ? aa_af_perm+0x230/0x230 [ 35.227069] ? move_addr_to_user+0x190/0x1d0 [ 35.231462] _do_fork+0x22f/0xf30 [ 35.234899] ? fork_idle+0x220/0x220 [ 35.238594] ? syscall_slow_exit_work+0x630/0x630 [ 35.243571] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.248947] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.253957] ? do_syscall_64+0x21/0x620 [ 35.257921] do_syscall_64+0xf9/0x620 [ 35.261710] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.266884] RIP: 0033:0x7f656fcfe38b [ 35.270593] Code: db 45 85 f6 0f 85 95 01 00 00 64 4c 8b 04 25 10 00 00 00 31 d2 4d 8d 90 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 de 00 00 00 85 c0 41 89 c5 0f 85 e5 00 00 [ 35.289477] RSP: 002b:00007ffc8ac8ce90 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 35.297190] RAX: ffffffffffffffda RBX: 00007ffc8ac8ce90 RCX: 00007f656fcfe38b [ 35.304476] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 35.311736] RBP: 00007ffc8ac8cee0 R08: 00007f6570eaf8c0 R09: 0000000000000210 [ 35.319104] R10: 00007f6570eafb90 R11: 0000000000000246 R12: 0000000000000000 [ 35.326365] R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000 [ 35.333996] Kernel Offset: disabled [ 35.337675] Rebooting in 86400 seconds..