[ 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 '10.128.1.34' (ECDSA) to the list of known hosts. 2020/08/31 15:18:20 parsed 1 programs 2020/08/31 15:18:21 executed programs: 0 syzkaller login: [ 88.554247][ T6852] IPVS: ftp: loaded support on port[0] = 21 [ 88.689148][ T6852] chnl_net:caif_netlink_parms(): no params data found [ 88.741144][ T6852] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.748517][ T6852] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.757849][ T6852] device bridge_slave_0 entered promiscuous mode [ 88.766957][ T6852] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.774340][ T6852] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.782208][ T6852] device bridge_slave_1 entered promiscuous mode [ 88.802613][ T6852] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.814173][ T6852] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.837154][ T6852] team0: Port device team_slave_0 added [ 88.845822][ T6852] team0: Port device team_slave_1 added [ 88.864750][ T6852] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 88.871784][ T6852] 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. [ 88.897716][ T6852] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 88.910144][ T6852] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 88.917073][ T6852] 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. [ 88.944039][ T6852] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 88.970740][ T6852] device hsr_slave_0 entered promiscuous mode [ 88.977345][ T6852] device hsr_slave_1 entered promiscuous mode [ 89.072552][ T6852] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 89.082666][ T6852] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 89.092561][ T6852] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 89.102734][ T6852] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.125802][ T6852] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.132923][ T6852] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.140649][ T6852] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.147701][ T6852] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.193822][ T6852] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.206566][ T3922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 89.217156][ T3922] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.227180][ T3922] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.235374][ T3922] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 89.247713][ T6852] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.258854][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.267900][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.274996][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.291204][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.300065][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.307108][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.331865][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 89.341194][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.349981][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 89.358081][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 89.370683][ T6852] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 89.379372][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 89.396504][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 89.404083][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 89.418685][ T6852] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.436838][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 89.456249][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 89.464632][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 89.472931][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 89.484744][ T6852] device veth0_vlan entered promiscuous mode [ 89.496633][ T6852] device veth1_vlan entered promiscuous mode [ 89.518803][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 89.527460][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 89.536206][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 89.547056][ T6852] device veth0_macvtap entered promiscuous mode [ 89.557821][ T6852] device veth1_macvtap entered promiscuous mode [ 89.575670][ T6852] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 89.583940][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 89.594033][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 89.605409][ T6852] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 89.613453][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 89.625054][ T6852] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.634309][ T6852] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.643058][ T6852] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 89.652165][ T6852] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 90.541534][ T17] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/31 15:18:26 executed programs: 70 [ 92.619993][ T2462] Bluetooth: hci0: command 0x041b tx timeout [ 92.707387][ T7378] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 92.719123][ T7378] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 92.727520][ T7378] CPU: 0 PID: 7378 Comm: syz-executor.0 Not tainted 5.9.0-rc2-syzkaller #0 [ 92.736103][ T7378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.746142][ T7378] RIP: 0010:snd_ctl_release+0x69/0x3e0 [ 92.751609][ T7378] Code: 44 24 10 4c 8b b0 b0 01 00 00 48 c7 80 b0 01 00 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 46 10 4d 8d 6e 08 4c 8d a0 48 [ 92.771223][ T7378] RSP: 0018:ffffc90008b6fde8 EFLAGS: 00010202 [ 92.777260][ T7378] RAX: dffffc0000000000 RBX: ffff8880a04a3ac0 RCX: 1ffffffff11eb370 [ 92.785202][ T7378] RDX: 0000000000000002 RSI: ffffffff860cbc5b RDI: 0000000000000010 [ 92.793143][ T7378] RBP: ffff8880a04a3ac0 R08: 0000000000000001 R09: ffffffff89cc5567 [ 92.801085][ T7378] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a04a3b44 [ 92.809029][ T7378] R13: ffff8880a04a3ae8 R14: 0000000000000000 R15: ffff8880a4bc2100 [ 92.816993][ T7378] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:0000000009ace900 [ 92.825899][ T7378] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 92.832455][ T7378] CR2: 0000000000000000 CR3: 0000000096781000 CR4: 00000000001506f0 [ 92.840401][ T7378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.848365][ T7378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.856314][ T7378] Call Trace: [ 92.859586][ T7378] __fput+0x285/0x920 [ 92.863542][ T7378] ? snd_ctl_empty_read_queue+0x210/0x210 [ 92.869232][ T7378] task_work_run+0xdd/0x190 [ 92.873706][ T7378] exit_to_user_mode_prepare+0x1e1/0x200 [ 92.879313][ T7378] syscall_exit_to_user_mode+0x7e/0x2e0 [ 92.884838][ T7378] __do_fast_syscall_32+0x63/0x80 [ 92.889833][ T7378] do_fast_syscall_32+0x2f/0x70 [ 92.894670][ T7378] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 92.900968][ T7378] RIP: 0023:0xf7faa549 [ 92.905010][ T7378] Code: 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 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 92.924890][ T7378] RSP: 002b:00000000ff97935c EFLAGS: 00000292 ORIG_RAX: 0000000000000006 [ 92.933271][ T7378] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 92.941227][ T7378] RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.949190][ T7378] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 92.957134][ T7378] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 92.965075][ T7378] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 92.973021][ T7378] Modules linked in: [ 92.977857][ T7378] ---[ end trace 6b816397a61fbea4 ]--- [ 92.983386][ T7378] RIP: 0010:snd_ctl_release+0x69/0x3e0 [ 92.988877][ T7378] Code: 44 24 10 4c 8b b0 b0 01 00 00 48 c7 80 b0 01 00 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 46 10 4d 8d 6e 08 4c 8d a0 48 [ 93.008689][ T7378] RSP: 0018:ffffc90008b6fde8 EFLAGS: 00010202 [ 93.014800][ T7378] RAX: dffffc0000000000 RBX: ffff8880a04a3ac0 RCX: 1ffffffff11eb370 [ 93.023268][ T7378] RDX: 0000000000000002 RSI: ffffffff860cbc5b RDI: 0000000000000010 [ 93.031277][ T7378] RBP: ffff8880a04a3ac0 R08: 0000000000000001 R09: ffffffff89cc5567 [ 93.039291][ T7378] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a04a3b44 [ 93.047252][ T7378] R13: ffff8880a04a3ae8 R14: 0000000000000000 R15: ffff8880a4bc2100 [ 93.055252][ T7378] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:0000000009ace900 [ 93.064198][ T7378] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 93.070800][ T7378] CR2: 0000000000000000 CR3: 0000000096781000 CR4: 00000000001506f0 [ 93.078762][ T7378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.086762][ T7378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.094764][ T7378] Kernel panic - not syncing: Fatal exception [ 93.102267][ T7378] Kernel Offset: disabled [ 93.106576][ T7378] Rebooting in 86400 seconds..