[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.201' (ECDSA) to the list of known hosts. 2021/03/20 21:09:32 parsed 1 programs 2021/03/20 21:09:33 executed programs: 0 syzkaller login: [ 69.811679][ T8419] IPVS: ftp: loaded support on port[0] = 21 [ 69.977139][ T8419] chnl_net:caif_netlink_parms(): no params data found [ 70.041001][ T8419] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.048798][ T8419] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.058872][ T8419] device bridge_slave_0 entered promiscuous mode [ 70.071288][ T8419] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.078403][ T8419] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.088128][ T8419] device bridge_slave_1 entered promiscuous mode [ 70.115924][ T8419] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.128220][ T8419] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.164651][ T8419] team0: Port device team_slave_0 added [ 70.173041][ T8419] team0: Port device team_slave_1 added [ 70.198411][ T8419] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.208372][ T8419] 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. [ 70.235486][ T8419] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.249393][ T8419] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.249438][ T8419] 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. [ 70.249464][ T8419] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.307402][ T8419] device hsr_slave_0 entered promiscuous mode [ 70.314470][ T8419] device hsr_slave_1 entered promiscuous mode [ 70.411857][ T8419] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.426807][ T8419] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.436211][ T8419] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.452566][ T8419] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.478418][ T8419] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.485637][ T8419] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.493500][ T8419] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.500647][ T8419] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.545662][ T8419] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.559589][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.571511][ T3804] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.580759][ T3804] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.588512][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.602557][ T8419] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.614715][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.623590][ T20] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.630819][ T20] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.643740][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.652279][ T3804] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.659391][ T3804] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.681972][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.691384][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.701834][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.718666][ T8419] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.729359][ T8419] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.742097][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.751761][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.761085][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.784741][ T8419] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.791938][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.801621][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.820815][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.840800][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.850346][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.858180][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.868863][ T8419] device veth0_vlan entered promiscuous mode [ 70.883067][ T8419] device veth1_vlan entered promiscuous mode [ 70.903283][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.913081][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.921767][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.935521][ T8419] device veth0_macvtap entered promiscuous mode [ 70.946234][ T8419] device veth1_macvtap entered promiscuous mode [ 70.962735][ T8419] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.971865][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.981909][ T3804] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.994727][ T8419] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.003364][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.012617][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.024892][ T8419] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.034374][ T8419] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.043420][ T8419] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.053401][ T8419] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.140932][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.150920][ T3239] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.157555][ T3239] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.165526][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.196864][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.223076][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.233772][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.243176][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.633986][ T421] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.800519][ T3804] Bluetooth: hci0: command 0x0409 tx timeout [ 73.869548][ T8634] Bluetooth: hci0: command 0x041b tx timeout [ 74.349121][ T421] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.524013][ T8672] IPVS: ftp: loaded support on port[0] = 21 [ 76.616622][ T8672] chnl_net:caif_netlink_parms(): no params data found [ 76.724797][ T421] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.767039][ T8672] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.775779][ T8672] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.784272][ T8672] device bridge_slave_0 entered promiscuous mode [ 76.794400][ T8672] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.802079][ T8672] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.810685][ T8672] device bridge_slave_1 entered promiscuous mode [ 76.901588][ T421] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.927163][ T8672] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.939438][ T8672] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.961411][ T8672] team0: Port device team_slave_0 added [ 76.969506][ T8672] team0: Port device team_slave_1 added [ 76.986614][ T8672] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.993817][ T8672] 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. [ 77.020039][ T8672] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.033185][ T8672] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.040269][ T8672] 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. [ 77.066210][ T8672] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.093179][ T8672] device hsr_slave_0 entered promiscuous mode [ 77.100440][ T8672] device hsr_slave_1 entered promiscuous mode [ 77.107609][ T8672] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.116909][ T8672] Cannot create hsr debugfs directory [ 77.867931][ T8672] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.875090][ T8672] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.882538][ T8672] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.889656][ T8672] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.902987][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.910929][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.028232][ T8672] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.118688][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.126293][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.136114][ T8672] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.146723][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.156886][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.165930][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.173104][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.200466][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.209020][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.217256][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.224360][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.232909][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.241675][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.251767][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.260603][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.269372][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.370282][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.379849][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.388446][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.399587][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.407698][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.416451][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.425497][ T8672] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.508577][ T8634] Bluetooth: hci0: command 0x0409 tx timeout [ 78.525402][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.534353][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.549463][ T8672] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.647796][ T8634] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.657694][ T8634] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.758753][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.766803][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.777260][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.785963][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.794738][ T8672] device veth0_vlan entered promiscuous mode [ 78.883748][ T8672] device veth1_vlan entered promiscuous mode [ 78.906588][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.914698][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.923810][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.933334][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.032267][ T8672] device veth0_macvtap entered promiscuous mode [ 79.043492][ T8672] device veth1_macvtap entered promiscuous mode [ 79.061536][ T8672] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 79.073612][ T8672] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.085538][ T8672] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.094914][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.104468][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.114057][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.134942][ T8672] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.152355][ T8672] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.168409][ T8672] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.254491][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.264553][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.359031][ T421] device hsr_slave_0 left promiscuous mode [ 79.373712][ T421] device hsr_slave_1 left promiscuous mode [ 79.382507][ T421] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.392891][ T421] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.408871][ T421] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.416255][ T421] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.425242][ T421] device bridge_slave_1 left promiscuous mode [ 79.432513][ T421] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.444941][ T421] device bridge_slave_0 left promiscuous mode [ 79.451717][ T421] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.468306][ T421] device veth1_macvtap left promiscuous mode [ 79.475536][ T421] device veth0_macvtap left promiscuous mode [ 79.482584][ T421] device veth1_vlan left promiscuous mode [ 79.489178][ T421] device veth0_vlan left promiscuous mode [ 80.588520][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 82.668496][ T7] Bluetooth: hci0: command 0x040f tx timeout [ 83.047280][ T421] team0 (unregistering): Port device team_slave_1 removed [ 83.062406][ T421] team0 (unregistering): Port device team_slave_0 removed [ 83.074593][ T421] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 83.090190][ T421] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 83.143175][ T421] bond0 (unregistering): Released all slaves [ 83.207414][ T47] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.231487][ T47] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.273488][ T8634] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.289239][ T869] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.297214][ T869] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.307954][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 84.722708][ C0] ------------[ cut here ]------------ [ 84.728259][ C0] WARNING: CPU: 0 PID: 8945 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x31e/0x3b0 [ 84.739045][ C0] Modules linked in: [ 84.742951][ C0] CPU: 0 PID: 8945 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0 [ 84.751637][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.761693][ C0] RIP: 0010:vkms_vblank_simulate+0x31e/0x3b0 [ 84.767691][ C0] Code: 85 9e 00 00 00 48 8b 95 b8 01 00 00 4c 89 e1 bf 02 00 00 00 48 c7 c6 e0 c2 d8 89 e8 8c 09 f0 ff e9 e5 fe ff ff e8 92 40 27 fd <0f> 0b e9 88 fd ff ff e8 56 d3 6a fd e9 11 fe ff ff 4c 89 ef e8 49 [ 84.787305][ C0] RSP: 0018:ffffc90000007df0 EFLAGS: 00010046 [ 84.793391][ C0] RAX: 0000000000010000 RBX: ffff8881435e5e58 RCX: 0000000000000000 [ 84.801369][ C0] RDX: ffff888030a00000 RSI: ffffffff844caaee RDI: 0000000000000003 [ 84.809351][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 [ 84.817337][ C0] R10: ffffffff844ca873 R11: 0000000000000000 R12: ffff8881435e4d30 [ 84.825330][ C0] R13: 0000000000fe4c00 R14: ffff8880b9c26340 R15: ffffffff844ca7d0 [ 84.833316][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0063) knlGS:000000000acc6380 [ 84.842263][ C0] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 84.848854][ C0] CR2: 00000000080eafc1 CR3: 00000000128bf000 CR4: 00000000001506f0 [ 84.856812][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.864889][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.872847][ C0] Call Trace: [ 84.876111][ C0] [ 84.878941][ C0] ? vkms_disable_vblank+0x20/0x20 [ 84.884039][ C0] __hrtimer_run_queues+0x609/0xe40 [ 84.889247][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 84.895245][ C0] hrtimer_interrupt+0x330/0xa00 [ 84.900186][ C0] __sysvec_apic_timer_interrupt+0x146/0x540 [ 84.906155][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 84.911833][ C0] [ 84.914752][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 84.920723][ C0] RIP: 0010:syslog_print_all+0x3dd/0x4a0 [ 84.926345][ C0] Code: 00 45 84 f6 0f 85 8a 00 00 00 e8 ee fc 17 00 48 c7 c7 c0 32 f6 8b e8 f2 a8 ac 07 e8 3d 5a 00 00 e8 f8 eb 1d 00 fb 48 8b 3c 24 6e fe 5a 00 e8 c9 fc 17 00 48 b8 00 00 00 00 00 fc ff df 48 03 [ 84.945933][ C0] RSP: 0018:ffffc9000239fbb0 EFLAGS: 00000206 [ 84.951982][ C0] RAX: 0000000000000699 RBX: 00000000000007c8 RCX: 1ffffffff1b8bca9 [ 84.959936][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801d48e800 [ 84.967902][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 84.975853][ C0] R10: ffffffff8179dad8 R11: 0000000000000000 R12: ffffc9000239fc60 [ 84.983807][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc9000239fc20 [ 84.991763][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 84.996795][ C0] ? syslog_print+0x430/0x430 [ 85.001459][ C0] ? kasan_save_stack+0x1b/0x40 [ 85.006291][ C0] ? kasan_record_aux_stack+0xe5/0x110 [ 85.011845][ C0] ? call_rcu+0xb1/0x740 [ 85.016075][ C0] ? task_work_run+0xdd/0x1a0 [ 85.020746][ C0] ? exit_to_user_mode_prepare+0x249/0x250 [ 85.026549][ C0] do_syslog.part.0+0x439/0x7e0 [ 85.031385][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 85.037349][ C0] ? syslog_print_all+0x4a0/0x4a0 [ 85.042356][ C0] ? debug_object_active_state+0x260/0x350 [ 85.048298][ C0] ? find_held_lock+0x2d/0x110 [ 85.053255][ C0] ? __context_tracking_exit+0xb8/0xe0 [ 85.058716][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 85.063557][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 85.069783][ C0] ? security_syslog+0x73/0x90 [ 85.074539][ C0] __ia32_sys_syslog+0x9c/0xd0 [ 85.079296][ C0] __do_fast_syscall_32+0x56/0x90 [ 85.084322][ C0] do_fast_syscall_32+0x2f/0x70 [ 85.089164][ C0] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 85.095480][ C0] RIP: 0023:0xf7efe549 [ 85.099532][ C0] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 [ 85.119212][ C0] RSP: 002b:00000000ffa4cc1c EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 85.127619][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000ffa4ccf4 [ 85.135582][ C0] RDX: 000000000000003f RSI: 00000000080eafd0 RDI: 0000000000000040 [ 85.143586][ C0] RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 [ 85.151664][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 85.159623][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 85.167595][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 85.174161][ C0] CPU: 0 PID: 8945 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0 [ 85.182833][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.192872][ C0] Call Trace: [ 85.196139][ C0] [ 85.198970][ C0] dump_stack+0x141/0x1d7 [ 85.203292][ C0] panic+0x306/0x73d [ 85.207175][ C0] ? __warn_printk+0xf3/0xf3 [ 85.211759][ C0] ? __warn.cold+0x1a/0x44 [ 85.216187][ C0] ? vkms_vblank_simulate+0x31e/0x3b0 [ 85.221548][ C0] __warn.cold+0x35/0x44 [ 85.225780][ C0] ? vkms_vblank_simulate+0x31e/0x3b0 [ 85.231141][ C0] report_bug+0x1bd/0x210 [ 85.235457][ C0] handle_bug+0x3c/0x60 [ 85.239596][ C0] exc_invalid_op+0x14/0x40 [ 85.244082][ C0] asm_exc_invalid_op+0x12/0x20 [ 85.248919][ C0] RIP: 0010:vkms_vblank_simulate+0x31e/0x3b0 [ 85.254886][ C0] Code: 85 9e 00 00 00 48 8b 95 b8 01 00 00 4c 89 e1 bf 02 00 00 00 48 c7 c6 e0 c2 d8 89 e8 8c 09 f0 ff e9 e5 fe ff ff e8 92 40 27 fd <0f> 0b e9 88 fd ff ff e8 56 d3 6a fd e9 11 fe ff ff 4c 89 ef e8 49 [ 85.274478][ C0] RSP: 0018:ffffc90000007df0 EFLAGS: 00010046 [ 85.280532][ C0] RAX: 0000000000010000 RBX: ffff8881435e5e58 RCX: 0000000000000000 [ 85.288506][ C0] RDX: ffff888030a00000 RSI: ffffffff844caaee RDI: 0000000000000003 [ 85.296462][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 [ 85.304417][ C0] R10: ffffffff844ca873 R11: 0000000000000000 R12: ffff8881435e4d30 [ 85.312371][ C0] R13: 0000000000fe4c00 R14: ffff8880b9c26340 R15: ffffffff844ca7d0 [ 85.320330][ C0] ? vkms_disable_vblank+0x20/0x20 [ 85.325439][ C0] ? vkms_vblank_simulate+0xa3/0x3b0 [ 85.330709][ C0] ? vkms_vblank_simulate+0x31e/0x3b0 [ 85.336072][ C0] ? vkms_disable_vblank+0x20/0x20 [ 85.341178][ C0] __hrtimer_run_queues+0x609/0xe40 [ 85.346367][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 85.352336][ C0] hrtimer_interrupt+0x330/0xa00 [ 85.357282][ C0] __sysvec_apic_timer_interrupt+0x146/0x540 [ 85.363269][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 85.368976][ C0] [ 85.371892][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 85.377863][ C0] RIP: 0010:syslog_print_all+0x3dd/0x4a0 [ 85.383484][ C0] Code: 00 45 84 f6 0f 85 8a 00 00 00 e8 ee fc 17 00 48 c7 c7 c0 32 f6 8b e8 f2 a8 ac 07 e8 3d 5a 00 00 e8 f8 eb 1d 00 fb 48 8b 3c 24 6e fe 5a 00 e8 c9 fc 17 00 48 b8 00 00 00 00 00 fc ff df 48 03 [ 85.403162][ C0] RSP: 0018:ffffc9000239fbb0 EFLAGS: 00000206 [ 85.409235][ C0] RAX: 0000000000000699 RBX: 00000000000007c8 RCX: 1ffffffff1b8bca9 [ 85.417191][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801d48e800 [ 85.425164][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 85.433124][ C0] R10: ffffffff8179dad8 R11: 0000000000000000 R12: ffffc9000239fc60 [ 85.441079][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc9000239fc20 [ 85.449074][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 85.454112][ C0] ? syslog_print+0x430/0x430 [ 85.458780][ C0] ? kasan_save_stack+0x1b/0x40 [ 85.463631][ C0] ? kasan_record_aux_stack+0xe5/0x110 [ 85.469073][ C0] ? call_rcu+0xb1/0x740 [ 85.473303][ C0] ? task_work_run+0xdd/0x1a0 [ 85.477966][ C0] ? exit_to_user_mode_prepare+0x249/0x250 [ 85.483768][ C0] do_syslog.part.0+0x439/0x7e0 [ 85.488605][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 85.494574][ C0] ? syslog_print_all+0x4a0/0x4a0 [ 85.499583][ C0] ? debug_object_active_state+0x260/0x350 [ 85.505379][ C0] ? find_held_lock+0x2d/0x110 [ 85.510145][ C0] ? __context_tracking_exit+0xb8/0xe0 [ 85.515589][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 85.520430][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 85.526657][ C0] ? security_syslog+0x73/0x90 [ 85.531415][ C0] __ia32_sys_syslog+0x9c/0xd0 [ 85.536167][ C0] __do_fast_syscall_32+0x56/0x90 [ 85.541179][ C0] do_fast_syscall_32+0x2f/0x70 [ 85.546013][ C0] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 85.552328][ C0] RIP: 0023:0xf7efe549 [ 85.556380][ C0] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 [ 85.575968][ C0] RSP: 002b:00000000ffa4cc1c EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 85.584364][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000ffa4ccf4 [ 85.592318][ C0] RDX: 000000000000003f RSI: 00000000080eafd0 RDI: 0000000000000040 [ 85.600270][ C0] RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 [ 85.608230][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 85.616192][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 85.625156][ C0] Kernel Offset: disabled [ 85.629622][ C0] Rebooting in 86400 seconds..