[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.217' (ECDSA) to the list of known hosts. 2020/08/30 20:49:28 parsed 1 programs 2020/08/30 20:49:29 executed programs: 0 syzkaller login: [ 146.140373] audit: type=1400 audit(1598820569.278:8): avc: denied { execmem } for pid=6484 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 147.266955] IPVS: ftp: loaded support on port[0] = 21 [ 147.375229] chnl_net:caif_netlink_parms(): no params data found [ 147.437130] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.444044] bridge0: port 1(bridge_slave_0) entered disabled state [ 147.453113] device bridge_slave_0 entered promiscuous mode [ 147.461354] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.467831] bridge0: port 2(bridge_slave_1) entered disabled state [ 147.474786] device bridge_slave_1 entered promiscuous mode [ 147.492586] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 147.501635] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 147.520632] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 147.529242] team0: Port device team_slave_0 added [ 147.534713] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 147.543055] team0: Port device team_slave_1 added [ 147.558965] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 147.565227] 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. [ 147.591279] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 147.603890] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 147.611137] 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. [ 147.636937] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 147.648251] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 147.655783] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 147.675543] device hsr_slave_0 entered promiscuous mode [ 147.681341] device hsr_slave_1 entered promiscuous mode [ 147.687385] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 147.695501] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 147.762575] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.769151] bridge0: port 2(bridge_slave_1) entered forwarding state [ 147.775996] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.782463] bridge0: port 1(bridge_slave_0) entered forwarding state [ 147.815189] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 147.822582] 8021q: adding VLAN 0 to HW filter on device bond0 [ 147.831654] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 147.841136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 147.850933] bridge0: port 1(bridge_slave_0) entered disabled state [ 147.858217] bridge0: port 2(bridge_slave_1) entered disabled state [ 147.865192] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 147.876524] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 147.882751] 8021q: adding VLAN 0 to HW filter on device team0 [ 147.892096] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 147.900527] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.906923] bridge0: port 1(bridge_slave_0) entered forwarding state [ 147.919546] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 147.927233] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.933650] bridge0: port 2(bridge_slave_1) entered forwarding state [ 147.945549] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 147.954352] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 147.965016] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 147.978812] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 147.986258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 147.995585] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 148.003416] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 148.016159] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 148.023976] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 148.031216] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 148.041597] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 148.054839] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 148.064820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 148.097471] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 148.105339] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 148.113080] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 148.123236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 148.131441] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 148.138930] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 148.148915] device veth0_vlan entered promiscuous mode [ 148.158029] device veth1_vlan entered promiscuous mode [ 148.163928] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 148.173080] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 148.185183] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 148.194774] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 148.202921] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 148.210720] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 148.221168] device veth0_macvtap entered promiscuous mode [ 148.227318] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 148.235814] device veth1_macvtap entered promiscuous mode [ 148.244578] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 148.254548] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 148.265254] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 148.272841] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 148.281578] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 148.292240] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 148.299595] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 149.298774] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/30 20:49:34 executed programs: 150 [ 151.377920] Bluetooth: hci0: command 0x041b tx timeout [ 153.457540] Bluetooth: hci0: command 0x040f tx timeout [ 155.537461] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/30 20:49:39 executed programs: 597 [ 157.327628] list_del corruption, ffff88809e5cca50->prev is LIST_POISON2 (dead000000000200) [ 157.336703] ------------[ cut here ]------------ [ 157.341459] kernel BUG at lib/list_debug.c:48! [ 157.346253] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 157.351633] CPU: 0 PID: 9167 Comm: syz-executor.0 Not tainted 4.19.142-syzkaller #0 [ 157.359423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 157.368815] RIP: 0010:__list_del_entry_valid.cold+0x37/0x55 [ 157.374560] Code: f4 fd 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 40 0d cb 87 e8 11 12 f4 fd 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 a0 0d cb 87 e8 fd 11 f4 fd <0f> 0b 48 89 ee 48 c7 c7 60 0e cb 87 e8 ec 11 f4 fd 0f 0b 90 90 90 [ 157.393458] RSP: 0018:ffff888096e37de0 EFLAGS: 00010286 [ 157.398807] RAX: 000000000000004e RBX: ffff88809b6d8880 RCX: 0000000000000000 [ 157.406075] RDX: 0000000000000000 RSI: ffffffff8154d001 RDI: ffffed1012dc6fae [ 157.413340] RBP: ffff88809e5cca50 R08: 000000000000004e R09: 0000000000000000 [ 157.420717] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 157.427980] R13: ffff88809b6d8918 R14: ffff88809e5cca50 R15: ffff88809e5cca58 [ 157.435249] FS: 00007f0c007b9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 157.443453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 157.449310] CR2: 00000000016a8660 CR3: 000000008c435000 CR4: 00000000001406f0 [ 157.456559] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 157.463808] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 157.471070] Call Trace: [ 157.473659] mousedev_release+0x7d/0x1f0 [ 157.477702] ? mousedev_destroy+0x90/0x90 [ 157.481851] __fput+0x2ce/0x890 [ 157.485112] task_work_run+0x148/0x1c0 [ 157.488985] exit_to_usermode_loop+0x251/0x2a0 [ 157.493550] do_syscall_64+0x538/0x620 [ 157.497423] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 157.502610] RIP: 0033:0x45d5b9 [ 157.505810] Code: 5d 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 157.524705] RSP: 002b:00007f0c007b8c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 157.532477] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 157.539739] RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000005 [ 157.547008] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 157.554280] R10: 0000000020000040 R11: 0000000000000246 R12: 000000000118cf4c [ 157.561529] R13: 00007fff58e9cf0f R14: 00007f0c007b99c0 R15: 000000000118cf4c [ 157.568914] Modules linked in: [ 157.572163] ---[ end trace d79bc53b1f6fe69e ]--- [ 157.576939] RIP: 0010:__list_del_entry_valid.cold+0x37/0x55 [ 157.582740] Code: f4 fd 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 40 0d cb 87 e8 11 12 f4 fd 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 a0 0d cb 87 e8 fd 11 f4 fd <0f> 0b 48 89 ee 48 c7 c7 60 0e cb 87 e8 ec 11 f4 fd 0f 0b 90 90 90 [ 157.601770] RSP: 0018:ffff888096e37de0 EFLAGS: 00010286 [ 157.607123] RAX: 000000000000004e RBX: ffff88809b6d8880 RCX: 0000000000000000 [ 157.614495] RDX: 0000000000000000 RSI: ffffffff8154d001 RDI: ffffed1012dc6fae [ 157.621814] RBP: ffff88809e5cca50 R08: 000000000000004e R09: 0000000000000000 [ 157.629115] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 157.636379] R13: ffff88809b6d8918 R14: ffff88809e5cca50 R15: ffff88809e5cca58 [ 157.643684] FS: 00007f0c007b9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 157.652050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 157.657973] CR2: 00000000016a8660 CR3: 000000008c435000 CR4: 00000000001406f0 [ 157.665257] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 157.672723] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 157.680019] Kernel panic - not syncing: Fatal exception [ 157.686547] Kernel Offset: disabled [ 157.690170] Rebooting in 86400 seconds..