Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. 2020/11/09 22:27:00 parsed 1 programs 2020/11/09 22:27:01 executed programs: 0 syzkaller login: [ 35.666036] IPVS: ftp: loaded support on port[0] = 21 [ 35.769392] chnl_net:caif_netlink_parms(): no params data found [ 35.870085] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.876940] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.885109] device bridge_slave_0 entered promiscuous mode [ 35.892253] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.898844] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.906121] device bridge_slave_1 entered promiscuous mode [ 35.923361] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 35.932079] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 35.950435] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 35.957891] team0: Port device team_slave_0 added [ 35.963888] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 35.971341] team0: Port device team_slave_1 added [ 35.986739] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 35.993164] 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. [ 36.019697] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 36.031193] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 36.037548] 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. [ 36.062896] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 36.074029] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 36.081449] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 36.101668] device hsr_slave_0 entered promiscuous mode [ 36.107895] device hsr_slave_1 entered promiscuous mode [ 36.114302] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 36.121367] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 36.188273] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.194722] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.202276] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.208622] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.240452] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 36.248146] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.256969] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 36.266554] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.276027] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.283919] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.290826] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 36.301368] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 36.307690] 8021q: adding VLAN 0 to HW filter on device team0 [ 36.316559] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.324573] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.330907] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.341210] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 36.349273] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.355669] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.373948] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 36.381722] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 36.390095] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 36.398386] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 36.408594] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 36.418176] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 36.425093] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 36.437209] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 36.446042] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 36.453247] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 36.465020] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 36.477312] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 36.486763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.520161] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 36.528332] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 36.535826] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 36.546295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 36.554694] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 36.561516] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 36.570032] device veth0_vlan entered promiscuous mode [ 36.579961] device veth1_vlan entered promiscuous mode [ 36.586634] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 36.593976] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 36.603836] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 36.615588] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 36.624683] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 36.632216] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 36.641226] device veth0_macvtap entered promiscuous mode [ 36.647494] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 36.656141] device veth1_macvtap entered promiscuous mode [ 36.665729] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 36.674769] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 36.685030] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 36.692896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 36.701094] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 36.710890] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 36.717952] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 36.825844] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 36.832951] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 36.849129] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 36.856521] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 36.863838] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 36.873096] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 36.880315] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 36.888457] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 37.702189] Bluetooth: hci0: command 0x0409 tx timeout [ 38.725906] BUG: unable to handle kernel paging request at ffff888001000000 [ 38.725913] PGD de01067 P4D de01067 PUD de02067 PMD 80000000010001e1 [ 38.725931] Oops: 0003 [#1] PREEMPT SMP KASAN [ 38.725940] CPU: 1 PID: 8434 Comm: syz-executor.0 Not tainted 4.19.155-syzkaller #0 [ 38.725943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.725956] RIP: 0010:cfb_imageblit+0x99b/0x1040 [ 38.725962] Code: e0 09 44 24 04 e8 05 c6 c0 fd 45 39 e7 0f 87 44 ff ff ff e8 07 c5 c0 fd 48 8b 44 24 08 8b 4c 24 04 48 8d 78 04 48 89 7c 24 08 <89> 08 44 89 e6 44 89 ff e8 d8 c5 c0 fd 45 39 e7 0f 85 04 ff ff ff [ 38.725966] RSP: 0018:ffff88809eaff5b8 EFLAGS: 00010293 [ 38.725972] RAX: ffff888001000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 38.725976] RDX: 0000000000000000 RSI: ffffffff83a40989 RDI: ffff888001000004 [ 38.725979] RBP: 0000000000000000 R08: 00000000000007b0 R09: 000000000000001c [ 38.725983] R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c [ 38.725987] R13: 0000000000000000 R14: ffff8880b06ee120 R15: 000000000000001c [ 38.725993] FS: 00007eff14eaa700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 38.725997] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.726001] CR2: ffff888001000000 CR3: 00000000b3506000 CR4: 00000000001406e0 [ 38.726008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.726012] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.726014] Call Trace: [ 38.726030] vga16fb_imageblit+0x6b4/0x2260 [ 38.726039] ? __lock_acquire+0x6de/0x3ff0 [ 38.726047] ? fb_get_buffer_offset+0x17e/0x330 [ 38.726054] bit_putcs+0x6e2/0xd10 [ 38.726064] ? bit_cursor+0x1740/0x1740 [ 38.726072] ? raw_notifier_call_chain+0x30/0x30 [ 38.726079] ? notifier_call_chain+0x1d5/0x230 [ 38.726087] ? fb_get_color_depth+0x11a/0x240 [ 38.726096] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 38.726102] ? bit_cursor+0x1740/0x1740 [ 38.726109] fbcon_putcs+0x336/0x4f0 [ 38.726117] ? fb_flashcursor+0x430/0x430 [ 38.726126] do_con_write+0x1269/0x1d90 [ 38.726137] ? do_con_trol+0x5970/0x5970 [ 38.726148] ? wait_for_completion_io+0x10/0x10 [ 38.726156] con_write+0x22/0xb0 [ 38.726164] n_tty_write+0x3c0/0xff0 [ 38.726174] ? n_tty_open+0x160/0x160 [ 38.726182] ? do_wait_intr_irq+0x270/0x270 [ 38.726192] ? __might_fault+0x192/0x1d0 [ 38.726199] tty_write+0x496/0x810 [ 38.726205] ? n_tty_open+0x160/0x160 [ 38.726215] __vfs_write+0xf7/0x770 [ 38.726221] ? tty_compat_ioctl+0x270/0x270 [ 38.726229] ? common_file_perm+0x4e5/0x850 [ 38.726235] ? kernel_read+0x110/0x110 [ 38.726243] ? apparmor_getprocattr+0x11d0/0x11d0 [ 38.726253] ? security_file_permission+0x1c0/0x220 [ 38.726260] vfs_write+0x1f3/0x540 [ 38.726268] ksys_write+0x12b/0x2a0 [ 38.726275] ? __ia32_sys_read+0xb0/0xb0 [ 38.726289] ? trace_hardirqs_off_caller+0x6e/0x210 [ 38.726297] ? do_syscall_64+0x21/0x620 [ 38.726304] do_syscall_64+0xf9/0x620 [ 38.726312] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.726317] RIP: 0033:0x45deb9 [ 38.726324] Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 38.726327] RSP: 002b:00007eff14ea9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 38.726333] RAX: ffffffffffffffda RBX: 000000000003a680 RCX: 000000000045deb9 [ 38.726337] RDX: 0000000000001006 RSI: 0000000020001440 RDI: 0000000000000008 [ 38.726341] RBP: 000000000118c008 R08: 0000000000000000 R09: 0000000000000000 [ 38.726344] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4 [ 38.726348] R13: 00007fff9a5dfacf R14: 00007eff14eaa9c0 R15: 000000000118bfd4 [ 38.726354] Modules linked in: [ 38.726360] CR2: ffff888001000000 [ 38.726368] ---[ end trace 2c8793cc012274ab ]--- [ 38.726375] RIP: 0010:cfb_imageblit+0x99b/0x1040 [ 38.726381] Code: e0 09 44 24 04 e8 05 c6 c0 fd 45 39 e7 0f 87 44 ff ff ff e8 07 c5 c0 fd 48 8b 44 24 08 8b 4c 24 04 48 8d 78 04 48 89 7c 24 08 <89> 08 44 89 e6 44 89 ff e8 d8 c5 c0 fd 45 39 e7 0f 85 04 ff ff ff [ 38.726384] RSP: 0018:ffff88809eaff5b8 EFLAGS: 00010293 [ 38.726389] RAX: ffff888001000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 38.726393] RDX: 0000000000000000 RSI: ffffffff83a40989 RDI: ffff888001000004 [ 38.726397] RBP: 0000000000000000 R08: 00000000000007b0 R09: 000000000000001c [ 38.726400] R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c [ 38.726404] R13: 0000000000000000 R14: ffff8880b06ee120 R15: 000000000000001c [ 38.726409] FS: 00007eff14eaa700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 38.726414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.726418] CR2: ffff888001000000 CR3: 00000000b3506000 CR4: 00000000001406e0 [ 38.726423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.726427] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.726430] Kernel panic - not syncing: Fatal exception [ 38.727226] Kernel Offset: disabled [ 39.199233] Rebooting in 86400 seconds..