[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 39.101614] audit: type=1800 audit(1547461799.522:25): pid=7849 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 39.138621] audit: type=1800 audit(1547461799.522:26): pid=7849 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.165923] audit: type=1800 audit(1547461799.522:27): pid=7849 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 '10.128.0.237' (ECDSA) to the list of known hosts. 2019/01/14 10:30:12 parsed 1 programs 2019/01/14 10:30:14 executed programs: 0 syzkaller login: [ 53.997975] IPVS: ftp: loaded support on port[0] = 21 [ 54.062305] chnl_net:caif_netlink_parms(): no params data found [ 54.096282] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.103066] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.110425] device bridge_slave_0 entered promiscuous mode [ 54.117909] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.124287] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.131588] device bridge_slave_1 entered promiscuous mode [ 54.148360] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 54.157432] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 54.174345] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 54.182023] team0: Port device team_slave_0 added [ 54.187463] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 54.194568] team0: Port device team_slave_1 added [ 54.199982] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 54.207314] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 54.287350] device hsr_slave_0 entered promiscuous mode [ 54.335957] device hsr_slave_1 entered promiscuous mode [ 54.396016] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 54.402936] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 54.417130] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.423595] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.430774] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.437141] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.470067] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 54.477890] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.486030] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.494433] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.504962] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.512628] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.520031] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.531946] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 54.538317] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.547499] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.555084] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.561504] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.570859] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.579165] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.585569] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.606525] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.614635] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.622613] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.630143] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.640082] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.648622] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 54.654677] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.668718] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 54.679592] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.750030] kasan: CONFIG_KASAN_INLINE enabled [ 54.754854] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 54.762408] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 54.768654] CPU: 1 PID: 8022 Comm: syz-executor0 Not tainted 4.20.0+ #3 [ 54.775400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.784801] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 54.790339] 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 [ 54.809267] RSP: 0018:ffff88809653f120 EFLAGS: 00010203 [ 54.814644] RAX: dffffc0000000000 RBX: ffff88808c106940 RCX: 0000000000000000 [ 54.821920] RDX: 0000000000000001 RSI: ffffffff87b995b2 RDI: 000000000000000e [ 54.829189] RBP: ffff88809653f3e8 R08: ffff88808c104100 R09: ffff888088e40d90 [ 54.836460] R10: fffffbfff149fdc0 R11: ffffffff8a4fee03 R12: ffff8880a85547e0 [ 54.843735] R13: ffff888088e40d40 R14: ffff88808c106da0 R15: 0000000000000000 [ 54.851015] FS: 00007f0fd9675700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 54.859248] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.865136] CR2: 0000000000000000 CR3: 000000008c96f000 CR4: 00000000001406e0 [ 54.872405] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.879675] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.886943] Call Trace: [ 54.889533] ? __kmalloc_node_track_caller+0x51/0x80 [ 54.894639] ? __alloc_skb+0x12d/0x730 [ 54.898581] ? smc_diag_handler_dump+0x350/0x350 [ 54.903346] ? sock_sendmsg+0xdd/0x130 [ 54.907228] ? ___sys_sendmsg+0x7ec/0x910 [ 54.911372] ? __sys_sendmsg+0x112/0x270 [ 54.915424] ? __x64_sys_sendmsg+0x78/0xb0 [ 54.919658] ? do_syscall_64+0x1a3/0x800 [ 54.923718] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.929093] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.934628] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.940164] ? check_preemption_disabled+0x48/0x290 [ 54.945180] ? __lock_is_held+0xb6/0x140 [ 54.949264] ? lock_acquire+0x1db/0x570 [ 54.953239] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 54.958341] ? lock_release+0xc40/0xc40 [ 54.962310] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.967845] ? kasan_check_write+0x14/0x20 [ 54.972082] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 54.977102] ? __smc_diag_dump.isra.0+0x2b80/0x2b80 [ 54.982128] ? find_held_lock+0x35/0x120 [ 54.986189] smc_diag_dump+0x27/0x80 [ 54.989903] netlink_dump+0x5f2/0x1070 [ 54.993792] ? netlink_broadcast+0x50/0x50 [ 54.998035] __netlink_dump_start+0x5b4/0x7e0 [ 55.002530] smc_diag_handler_dump+0x2a7/0x350 [ 55.007113] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 55.011788] ? lock_downgrade+0x910/0x910 [ 55.015933] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 55.021122] ? rcu_read_unlock_special+0x380/0x380 [ 55.026052] sock_diag_rcv_msg+0x322/0x410 [ 55.030296] netlink_rcv_skb+0x17d/0x410 [ 55.034355] ? sock_diag_bind+0x80/0x80 [ 55.038329] ? netlink_ack+0xba0/0xba0 [ 55.042261] sock_diag_rcv+0x2b/0x40 [ 55.045974] netlink_unicast+0x574/0x770 [ 55.050034] ? netlink_attachskb+0x980/0x980 [ 55.054454] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.059999] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 55.065019] netlink_sendmsg+0xa05/0xf90 [ 55.069085] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.074629] ? netlink_unicast+0x770/0x770 [ 55.078867] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 55.083743] ? apparmor_socket_sendmsg+0x2a/0x30 [ 55.088503] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.094048] ? security_socket_sendmsg+0x93/0xc0 [ 55.098803] ? netlink_unicast+0x770/0x770 [ 55.103046] sock_sendmsg+0xdd/0x130 [ 55.106762] ___sys_sendmsg+0x7ec/0x910 [ 55.110747] ? copy_msghdr_from_user+0x570/0x570 [ 55.115497] ? iterate_fd+0x4b0/0x4b0 [ 55.119297] ? __might_fault+0x12b/0x1e0 [ 55.123440] ? find_held_lock+0x35/0x120 [ 55.127496] ? __might_fault+0x12b/0x1e0 [ 55.131556] ? __fget_light+0x2db/0x420 [ 55.135527] ? fget_raw+0x20/0x20 [ 55.138975] ? lock_release+0xc40/0xc40 [ 55.142944] ? trace_hardirqs_off_caller+0x300/0x300 [ 55.148048] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.153589] ? __fdget+0x1b/0x20 [ 55.156954] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.162492] ? sockfd_lookup_light+0xc2/0x160 [ 55.166991] __sys_sendmsg+0x112/0x270 [ 55.170875] ? __ia32_sys_shutdown+0x80/0x80 [ 55.175294] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.180667] ? trace_hardirqs_off_caller+0x300/0x300 [ 55.185773] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 55.190528] __x64_sys_sendmsg+0x78/0xb0 [ 55.194585] do_syscall_64+0x1a3/0x800 [ 55.198472] ? syscall_return_slowpath+0x5f0/0x5f0 [ 55.203400] ? prepare_exit_to_usermode+0x232/0x3b0 [ 55.208420] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.213271] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.218451] RIP: 0033:0x457ec9 [ 55.221638] 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 [ 55.240576] RSP: 002b:00007f0fd9674c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.248293] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 55.255553] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 [ 55.262814] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 55.270075] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0fd96756d4 [ 55.277335] R13: 00000000004c52f9 R14: 00000000004d8d58 R15: 00000000ffffffff [ 55.284602] Modules linked in: [ 55.288921] ---[ end trace 122189ddc6fed63b ]--- [ 55.293696] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2b80 [ 55.299278] 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 [ 55.318245] RSP: 0018:ffff88809653f120 EFLAGS: 00010203 [ 55.323620] RAX: dffffc0000000000 RBX: ffff88808c106940 RCX: 0000000000000000 [ 55.330948] RDX: 0000000000000001 RSI: ffffffff87b995b2 RDI: 000000000000000e [ 55.338249] RBP: ffff88809653f3e8 R08: ffff88808c104100 R09: ffff888088e40d90 [ 55.345549] R10: fffffbfff149fdc0 R11: ffffffff8a4fee03 R12: ffff8880a85547e0 [ 55.352823] R13: ffff888088e40d40 R14: ffff88808c106da0 R15: 0000000000000000 [ 55.360146] FS: 00007f0fd9675700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 55.368424] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.374303] CR2: 0000000000000000 CR3: 000000008c96f000 CR4: 00000000001406e0 [ 55.381611] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.389317] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.396617] Kernel panic - not syncing: Fatal exception [ 55.402981] Kernel Offset: disabled [ 55.406611] Rebooting in 86400 seconds..