[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.628370] audit: type=1800 audit(1546609671.263:25): pid=7754 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 37.656913] audit: type=1800 audit(1546609671.273:26): pid=7754 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 37.694726] audit: type=1800 audit(1546609671.273:27): pid=7754 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 syzkaller login: [ 43.679896] sshd (7892) used greatest stack depth: 19816 bytes left Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. 2019/01/04 13:48:04 parsed 1 programs 2019/01/04 13:48:06 executed programs: 0 [ 52.855505] IPVS: ftp: loaded support on port[0] = 21 [ 52.922068] chnl_net:caif_netlink_parms(): no params data found [ 52.955411] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.962224] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.969357] device bridge_slave_0 entered promiscuous mode [ 52.976662] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.983279] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.990211] device bridge_slave_1 entered promiscuous mode [ 53.007135] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.017251] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.035833] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 53.043440] team0: Port device team_slave_0 added [ 53.048746] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 53.056023] team0: Port device team_slave_1 added [ 53.061512] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.068718] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.152716] device hsr_slave_0 entered promiscuous mode [ 53.230952] device hsr_slave_1 entered promiscuous mode [ 53.301748] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.308667] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.323707] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.330104] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.337078] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.343463] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.374724] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 53.380885] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.388637] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.397276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.416656] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.434721] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.442843] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.452985] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.459043] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.468257] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.476298] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.482688] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.502075] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.509952] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.516342] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.523740] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.531828] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.539799] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.549073] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.560413] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.571313] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 53.577536] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.585725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.599108] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 53.609281] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.794564] kasan: CONFIG_KASAN_INLINE enabled [ 53.799362] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.807089] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 53.813321] CPU: 0 PID: 7956 Comm: syz-executor0 Not tainted 4.20.0+ #3 [ 53.820062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.829441] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 53.834989] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 08 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 b4 [ 53.853883] RSP: 0018:ffff888098507120 EFLAGS: 00010203 [ 53.859239] RAX: dffffc0000000000 RBX: ffff888097c69300 RCX: 0000000000000000 [ 53.866500] RDX: 0000000000000001 RSI: ffffffff87b995b2 RDI: 000000000000000e [ 53.873758] RBP: ffff8880985073e8 R08: ffff88808976a640 R09: ffff88808ada1098 [ 53.881021] R10: ffffed10115b4208 R11: ffff88808ada1047 R12: ffff888098bfd0e0 [ 53.888280] R13: ffff88808ada1048 R14: ffff888097c69760 R15: 0000000000000000 [ 53.895544] FS: 00007fc8410c8700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.903769] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.909641] CR2: 0000000000000000 CR3: 0000000096bfe000 CR4: 00000000001406f0 [ 53.916904] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.924174] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.931430] Call Trace: [ 53.934022] ? __kmalloc_node_track_caller+0x51/0x80 [ 53.939119] ? __alloc_skb+0x1c5/0x730 [ 53.943006] ? smc_diag_handler_dump+0x350/0x350 [ 53.947756] ? sock_sendmsg+0xdd/0x130 [ 53.951636] ? ___sys_sendmsg+0x7ec/0x910 [ 53.955776] ? __sys_sendmsg+0x112/0x270 [ 53.959830] ? __x64_sys_sendmsg+0x60/0xb0 [ 53.964062] ? do_syscall_64+0x1a3/0x800 [ 53.968121] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.973656] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.979188] ? check_preemption_disabled+0x48/0x290 [ 53.984199] ? __lock_is_held+0xb6/0x140 [ 53.988259] ? lock_acquire+0x1db/0x570 [ 53.992229] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 53.997324] ? lock_release+0xc40/0xc40 [ 54.001294] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.006826] ? kasan_check_write+0x14/0x20 [ 54.011057] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 54.016070] ? __smc_diag_dump.isra.0+0x2b80/0x2b80 [ 54.021078] ? find_held_lock+0x35/0x120 [ 54.025137] smc_diag_dump+0x27/0x80 [ 54.028846] netlink_dump+0x5f2/0x1070 [ 54.032732] ? netlink_broadcast+0x50/0x50 [ 54.036979] __netlink_dump_start+0x5b4/0x7e0 [ 54.041477] smc_diag_handler_dump+0x2a7/0x350 [ 54.046055] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 54.050715] ? lock_downgrade+0x910/0x910 [ 54.054857] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 54.060043] ? rcu_read_unlock_special+0x380/0x380 [ 54.065006] sock_diag_rcv_msg+0x322/0x410 [ 54.069235] netlink_rcv_skb+0x17d/0x410 [ 54.073293] ? sock_diag_bind+0x80/0x80 [ 54.077262] ? netlink_ack+0xba0/0xba0 [ 54.081150] sock_diag_rcv+0x2b/0x40 [ 54.084859] netlink_unicast+0x574/0x770 [ 54.088915] ? netlink_attachskb+0x980/0x980 [ 54.093330] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.098858] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.103871] netlink_sendmsg+0xa05/0xf90 [ 54.107923] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.113474] ? netlink_unicast+0x770/0x770 [ 54.117704] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 54.122540] ? apparmor_socket_sendmsg+0x2a/0x30 [ 54.127288] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.132823] ? security_socket_sendmsg+0x93/0xc0 [ 54.137569] ? netlink_unicast+0x770/0x770 [ 54.141804] sock_sendmsg+0xdd/0x130 [ 54.145517] ___sys_sendmsg+0x7ec/0x910 [ 54.149490] ? copy_msghdr_from_user+0x570/0x570 [ 54.154239] ? iterate_fd+0x4b0/0x4b0 [ 54.158045] ? __might_fault+0x12b/0x1e0 [ 54.162102] ? find_held_lock+0x35/0x120 [ 54.166155] ? __might_fault+0x12b/0x1e0 [ 54.170207] ? __fget_light+0x2db/0x420 [ 54.174178] ? fget_raw+0x20/0x20 [ 54.177627] ? lock_release+0xc40/0xc40 [ 54.181593] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.186693] ? __fdget+0x1b/0x20 [ 54.190054] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.195586] ? sockfd_lookup_light+0xc2/0x160 [ 54.200078] __sys_sendmsg+0x112/0x270 [ 54.203970] ? __ia32_sys_shutdown+0x80/0x80 [ 54.208383] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.213738] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.218836] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.223584] __x64_sys_sendmsg+0x78/0xb0 [ 54.227638] do_syscall_64+0x1a3/0x800 [ 54.231522] ? syscall_return_slowpath+0x5f0/0x5f0 [ 54.236447] ? prepare_exit_to_usermode+0x232/0x3b0 [ 54.241464] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.246307] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.251488] RIP: 0033:0x457ec9 [ 54.254680] Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.273574] RSP: 002b:00007fc8410c7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.281273] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 54.288530] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000008 [ 54.295789] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 54.303050] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc8410c86d4 [ 54.310312] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 54.317579] Modules linked in: [ 54.320807] ---[ end trace 3f2b70a9e3c6cef0 ]--- [ 54.325575] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 54.331129] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 08 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 b4 [ 54.350043] RSP: 0018:ffff888098507120 EFLAGS: 00010203 [ 54.355921] RAX: dffffc0000000000 RBX: ffff888097c69300 RCX: 0000000000000000 [ 54.363218] RDX: 0000000000000001 RSI: ffffffff87b995b2 RDI: 000000000000000e [ 54.370478] RBP: ffff8880985073e8 R08: ffff88808976a640 R09: ffff88808ada1098 [ 54.377760] R10: ffffed10115b4208 R11: ffff88808ada1047 R12: ffff888098bfd0e0 [ 54.385044] R13: ffff88808ada1048 R14: ffff888097c69760 R15: 0000000000000000 [ 54.392331] FS: 00007fc8410c8700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 54.400549] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.406443] CR2: 0000000000000000 CR3: 0000000096bfe000 CR4: 00000000001406f0 [ 54.413726] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.421007] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.428268] Kernel panic - not syncing: Fatal exception [ 54.434575] Kernel Offset: disabled [ 54.438196] Rebooting in 86400 seconds..