[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 58.099037][ T26] audit: type=1800 audit(1572984841.605:25): pid=8715 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 58.136765][ T26] audit: type=1800 audit(1572984841.605:26): pid=8715 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 58.177220][ T26] audit: type=1800 audit(1572984841.605:27): pid=8715 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.61' (ECDSA) to the list of known hosts. 2019/11/05 20:14:11 parsed 1 programs 2019/11/05 20:14:13 executed programs: 0 syzkaller login: [ 70.048640][ T8885] IPVS: ftp: loaded support on port[0] = 21 [ 70.112292][ T8885] chnl_net:caif_netlink_parms(): no params data found [ 70.140518][ T8885] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.147995][ T8885] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.155925][ T8885] device bridge_slave_0 entered promiscuous mode [ 70.164564][ T8885] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.171787][ T8885] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.179890][ T8885] device bridge_slave_1 entered promiscuous mode [ 70.196941][ T8885] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.207605][ T8885] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.226376][ T8885] team0: Port device team_slave_0 added [ 70.233785][ T8885] team0: Port device team_slave_1 added [ 70.299439][ T8885] device hsr_slave_0 entered promiscuous mode [ 70.347034][ T8885] device hsr_slave_1 entered promiscuous mode [ 70.471240][ T8885] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.478521][ T8885] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.486446][ T8885] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.493596][ T8885] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.575938][ T8885] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.595434][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.644584][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.677013][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.697067][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.753465][ T8885] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.790713][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.804961][ T3759] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.812151][ T3759] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.877971][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.888226][ T3002] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.895313][ T3002] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.938203][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.969157][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.988593][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.012525][ T8885] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.049210][ T8885] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.071314][ T8913] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.079800][ T8913] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.130721][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.148628][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.163855][ T8885] 8021q: adding VLAN 0 to HW filter on device batadv0 2019/11/05 20:14:18 executed programs: 5 2019/11/05 20:14:24 executed programs: 12 2019/11/05 20:14:30 executed programs: 19 2019/11/05 20:14:36 executed programs: 26 [ 96.784976][ T9082] kasan: CONFIG_KASAN_INLINE enabled [ 96.790497][ T9082] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 96.800654][ T9082] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 96.807629][ T9082] CPU: 1 PID: 9082 Comm: syz-executor.0 Not tainted 5.4.0-rc6 #0 [ 96.815317][ T9082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.825361][ T9082] RIP: 0010:j1939_sk_sendmsg+0x6d6/0x1450 [ 96.831058][ T9082] Code: e8 9f 06 f4 fa 48 8b 8d 50 ff ff ff b8 f9 06 00 00 48 81 f9 f9 06 00 00 48 0f 46 c1 48 89 85 60 ff ff ff 48 8b 85 20 ff ff ff <80> 38 00 0f 85 fa 0a 00 00 48 8b 85 40 ff ff ff 48 8b 58 48 48 8b [ 96.850641][ T9082] RSP: 0018:ffff8880929bfa28 EFLAGS: 00010206 [ 96.856720][ T9082] RAX: dffffc0000000009 RBX: 0000000006fffff9 RCX: 0000000006fffff9 [ 96.864675][ T9082] RDX: 0000000000000000 RSI: ffffffff867f1c31 RDI: 0000000000000007 [ 96.872632][ T9082] RBP: ffff8880929bfb40 R08: ffff888097b56240 R09: 0000000000000000 [ 96.880578][ T9082] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 96.888522][ T9082] R13: ffff8880a830d510 R14: 0000000000000000 R15: 0000000000000000 [ 96.896475][ T9082] FS: 00007fac8b72a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 96.905378][ T9082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.911935][ T9082] CR2: 0000000000000000 CR3: 0000000090aea000 CR4: 00000000001406e0 [ 96.919882][ T9082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.927830][ T9082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.935798][ T9082] Call Trace: [ 96.939077][ T9082] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 96.944688][ T9082] ? j1939_sk_recv_match_one+0x780/0x780 [ 96.950312][ T9082] ? apparmor_socket_sendmsg+0x2a/0x30 [ 96.955749][ T9082] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 96.961964][ T9082] ? security_socket_sendmsg+0x8d/0xc0 [ 96.967402][ T9082] ? j1939_sk_recv_match_one+0x780/0x780 [ 96.973012][ T9082] sock_sendmsg+0xd7/0x130 [ 96.977405][ T9082] ___sys_sendmsg+0x803/0x920 [ 96.982066][ T9082] ? copy_msghdr_from_user+0x440/0x440 [ 96.987502][ T9082] ? __kasan_check_read+0x11/0x20 [ 96.992499][ T9082] ? __fget+0x384/0x560 [ 96.996657][ T9082] ? __fget_light+0x1a9/0x230 [ 97.001309][ T9082] ? __fdget+0x1b/0x20 [ 97.005370][ T9082] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 97.011586][ T9082] __sys_sendmsg+0x105/0x1d0 [ 97.016164][ T9082] ? __sys_sendmsg_sock+0xd0/0xd0 [ 97.021176][ T9082] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 97.026629][ T9082] ? do_syscall_64+0x26/0x760 [ 97.031290][ T9082] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.037344][ T9082] ? do_syscall_64+0x26/0x760 [ 97.042002][ T9082] __x64_sys_sendmsg+0x78/0xb0 [ 97.046742][ T9082] do_syscall_64+0xfa/0x760 [ 97.051222][ T9082] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.057087][ T9082] RIP: 0033:0x45a219 [ 97.060961][ T9082] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 97.080555][ T9082] RSP: 002b:00007fac8b729c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.088942][ T9082] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219 [ 97.096900][ T9082] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 97.104858][ T9082] RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 [ 97.112808][ T9082] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac8b72a6d4 [ 97.120765][ T9082] R13: 00000000004c804e R14: 00000000004de4d0 R15: 00000000ffffffff [ 97.128748][ T9082] Modules linked in: [ 97.134238][ T9082] ---[ end trace c84393c932303c6b ]--- [ 97.139816][ T9082] RIP: 0010:j1939_sk_sendmsg+0x6d6/0x1450 [ 97.145516][ T9082] Code: e8 9f 06 f4 fa 48 8b 8d 50 ff ff ff b8 f9 06 00 00 48 81 f9 f9 06 00 00 48 0f 46 c1 48 89 85 60 ff ff ff 48 8b 85 20 ff ff ff <80> 38 00 0f 85 fa 0a 00 00 48 8b 85 40 ff ff ff 48 8b 58 48 48 8b [ 97.165180][ T9082] RSP: 0018:ffff8880929bfa28 EFLAGS: 00010206 [ 97.171416][ T9082] RAX: dffffc0000000009 RBX: 0000000006fffff9 RCX: 0000000006fffff9 [ 97.179523][ T9082] RDX: 0000000000000000 RSI: ffffffff867f1c31 RDI: 0000000000000007 [ 97.187670][ T9082] RBP: ffff8880929bfb40 R08: ffff888097b56240 R09: 0000000000000000 [ 97.195627][ T9082] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 97.203634][ T9082] R13: ffff8880a830d510 R14: 0000000000000000 R15: 0000000000000000 [ 97.211824][ T9082] FS: 00007fac8b72a700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 97.220771][ T9082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.227370][ T9082] CR2: ffffffffff600400 CR3: 0000000090aea000 CR4: 00000000001406f0 [ 97.235326][ T9082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.243324][ T9082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.251318][ T9082] Kernel panic - not syncing: Fatal exception [ 97.258657][ T9082] Kernel Offset: disabled [ 97.262994][ T9082] Rebooting in 86400 seconds..