[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 39.891488][ T26] audit: type=1800 audit(1546641563.682:25): pid=7820 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 39.927643][ T26] audit: type=1800 audit(1546641563.682:26): pid=7820 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.949265][ T26] audit: type=1800 audit(1546641563.682:27): pid=7820 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 '10.128.0.12' (ECDSA) to the list of known hosts. 2019/01/04 22:39:35 parsed 1 programs 2019/01/04 22:39:36 executed programs: 0 syzkaller login: [ 53.066440][ T7986] IPVS: ftp: loaded support on port[0] = 21 [ 53.135988][ T7986] chnl_net:caif_netlink_parms(): no params data found [ 53.169506][ T7986] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.176928][ T7986] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.184948][ T7986] device bridge_slave_0 entered promiscuous mode [ 53.192919][ T7986] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.200093][ T7986] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.207709][ T7986] device bridge_slave_1 entered promiscuous mode [ 53.226034][ T7986] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.235912][ T7986] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.253961][ T7986] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 53.262257][ T7986] team0: Port device team_slave_0 added [ 53.268285][ T7986] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 53.276375][ T7986] team0: Port device team_slave_1 added [ 53.282268][ T7986] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.290419][ T7986] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.361177][ T7986] device hsr_slave_0 entered promiscuous mode [ 53.399165][ T7986] device hsr_slave_1 entered promiscuous mode [ 53.469307][ T7986] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.476924][ T7986] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.491957][ T7986] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.499100][ T7986] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.506572][ T7986] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.513677][ T7986] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.547674][ T7986] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 53.556265][ T7986] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.565407][ T7986] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 53.574803][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.584671][ T2977] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.592835][ T2977] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.601153][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.612910][ T7986] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 53.619949][ T7986] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.628947][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.637251][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.644362][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.660091][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.668325][ T2977] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.675426][ T2977] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.687660][ T7988] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.697400][ T7988] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.714147][ T7986] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.724772][ T7986] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.736342][ T7986] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 53.743930][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.752334][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.760970][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.769390][ T2977] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.783500][ T7986] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 53.794397][ T7986] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.878461][ T8000] kasan: CONFIG_KASAN_INLINE enabled [ 53.883926][ T8000] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.892064][ T8000] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 53.898994][ T8000] CPU: 1 PID: 8000 Comm: syz-executor0 Not tainted 4.20.0-next-20190103 #5 [ 53.907560][ T8000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.917618][ T8000] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.923851][ T8000] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 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 d2 [ 53.943442][ T8000] RSP: 0018:ffff88808d7d7120 EFLAGS: 00010203 [ 53.949495][ T8000] RAX: dffffc0000000000 RBX: ffff88809eb63240 RCX: 0000000000000000 [ 53.957453][ T8000] RDX: 0000000000000001 RSI: ffffffff87b7ae82 RDI: 000000000000000e [ 53.965413][ T8000] RBP: ffff88808d7d73e8 R08: ffff888088b661c0 R09: ffff88808abd0ed8 [ 53.973371][ T8000] R10: ffffed101157a1d0 R11: ffff88808abd0e87 R12: ffff888088bc7220 [ 53.981336][ T8000] R13: ffff88808abd0e88 R14: ffff88809eb636a0 R15: 0000000000000000 [ 53.989296][ T8000] FS: 00007fa68b942700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 53.998213][ T8000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.004913][ T8000] CR2: 00000000004dac90 CR3: 000000009a690000 CR4: 00000000001406e0 [ 54.012875][ T8000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.020838][ T8000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.028794][ T8000] Call Trace: [ 54.032086][ T8000] ? __kmalloc_node_track_caller+0x4e/0x70 [ 54.037887][ T8000] ? __alloc_skb+0x185/0x730 [ 54.042475][ T8000] ? smc_diag_handler_dump+0x350/0x350 [ 54.047920][ T8000] ? sock_sendmsg+0xdd/0x130 [ 54.052499][ T8000] ? ___sys_sendmsg+0x7ec/0x910 [ 54.057339][ T8000] ? __sys_sendmsg+0x112/0x270 [ 54.062091][ T8000] ? __sys_sendmsg+0x230/0x270 [ 54.066852][ T8000] ? do_syscall_64+0x1a3/0x800 [ 54.071605][ T8000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.077840][ T8000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.084073][ T8000] ? check_preemption_disabled+0x48/0x290 [ 54.089787][ T8000] ? __lock_is_held+0xb6/0x140 [ 54.094546][ T8000] ? __kmalloc_node_track_caller+0x3d/0x70 [ 54.100346][ T8000] ? lock_acquire+0x1db/0x570 [ 54.105016][ T8000] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 54.110811][ T8000] ? lock_release+0xc40/0xc40 [ 54.115506][ T8000] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.121740][ T8000] ? kasan_check_write+0x14/0x20 [ 54.126674][ T8000] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 54.132389][ T8000] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 54.138097][ T8000] ? find_held_lock+0x35/0x120 [ 54.142854][ T8000] smc_diag_dump+0x27/0x80 [ 54.147264][ T8000] netlink_dump+0x5f2/0x1070 [ 54.151853][ T8000] ? netlink_broadcast+0x50/0x50 [ 54.156797][ T8000] __netlink_dump_start+0x5b4/0x7e0 [ 54.161996][ T8000] smc_diag_handler_dump+0x2a7/0x350 [ 54.167274][ T8000] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 54.172634][ T8000] ? lock_downgrade+0x910/0x910 [ 54.177474][ T8000] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 54.183393][ T8000] ? rcu_read_unlock_special+0x380/0x380 [ 54.189018][ T8000] sock_diag_rcv_msg+0x322/0x410 [ 54.193948][ T8000] netlink_rcv_skb+0x17d/0x410 [ 54.198700][ T8000] ? sock_diag_bind+0x80/0x80 [ 54.203364][ T8000] ? netlink_ack+0xba0/0xba0 [ 54.207951][ T8000] sock_diag_rcv+0x2b/0x40 [ 54.212356][ T8000] netlink_unicast+0x574/0x770 [ 54.217110][ T8000] ? netlink_attachskb+0x980/0x980 [ 54.222213][ T8000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.228442][ T8000] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.234152][ T8000] netlink_sendmsg+0xa05/0xf90 [ 54.238907][ T8000] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.245137][ T8000] ? netlink_unicast+0x770/0x770 [ 54.250059][ T8000] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 54.255591][ T8000] ? apparmor_socket_sendmsg+0x2a/0x30 [ 54.261040][ T8000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.267266][ T8000] ? security_socket_sendmsg+0x93/0xc0 [ 54.272710][ T8000] ? netlink_unicast+0x770/0x770 [ 54.277639][ T8000] sock_sendmsg+0xdd/0x130 [ 54.282045][ T8000] ___sys_sendmsg+0x7ec/0x910 [ 54.286716][ T8000] ? copy_msghdr_from_user+0x570/0x570 [ 54.292162][ T8000] ? ksys_dup3+0x660/0x660 [ 54.296567][ T8000] ? __might_fault+0x12b/0x1e0 [ 54.301319][ T8000] ? find_held_lock+0x35/0x120 [ 54.306078][ T8000] ? __might_fault+0x12b/0x1e0 [ 54.310838][ T8000] ? __fget_light+0x2db/0x420 [ 54.315508][ T8000] ? fget_raw+0x20/0x20 [ 54.319652][ T8000] ? lock_release+0xc40/0xc40 [ 54.324322][ T8000] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.330122][ T8000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.336356][ T8000] ? __fdget+0x1b/0x20 [ 54.340411][ T8000] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.346638][ T8000] ? sockfd_lookup_light+0xc2/0x160 [ 54.351829][ T8000] __sys_sendmsg+0x112/0x270 [ 54.356414][ T8000] ? __ia32_sys_shutdown+0x80/0x80 [ 54.361524][ T8000] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.367580][ T8000] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.373374][ T8000] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.378858][ T8000] __x64_sys_sendmsg+0x78/0xb0 [ 54.383610][ T8000] do_syscall_64+0x1a3/0x800 [ 54.388190][ T8000] ? syscall_return_slowpath+0x5f0/0x5f0 [ 54.393826][ T8000] ? prepare_exit_to_usermode+0x232/0x3b0 [ 54.399541][ T8000] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.405085][ T8000] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 54.410965][ T8000] RIP: 0033:0x457ec9 [ 54.414858][ T8000] 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 [ 54.434446][ T8000] RSP: 002b:00007fa68b941c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.442850][ T8000] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 54.450810][ T8000] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000008 [ 54.458780][ T8000] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 54.466737][ T8000] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa68b9426d4 [ 54.474695][ T8000] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 54.482663][ T8000] Modules linked in: [ 54.487628][ T8000] ---[ end trace b9048686fdbfa3c6 ]--- [ 54.493120][ T8000] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 54.499374][ T8000] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 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 d2 [ 54.518988][ T8000] RSP: 0018:ffff88808d7d7120 EFLAGS: 00010203 [ 54.525041][ T8000] RAX: dffffc0000000000 RBX: ffff88809eb63240 RCX: 0000000000000000 [ 54.533021][ T8000] RDX: 0000000000000001 RSI: ffffffff87b7ae82 RDI: 000000000000000e [ 54.540996][ T8000] RBP: ffff88808d7d73e8 R08: ffff888088b661c0 R09: ffff88808abd0ed8 [ 54.548988][ T8000] R10: ffffed101157a1d0 R11: ffff88808abd0e87 R12: ffff888088bc7220 [ 54.556950][ T8000] R13: ffff88808abd0e88 R14: ffff88809eb636a0 R15: 0000000000000000 [ 54.564962][ T8000] FS: 00007fa68b942700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 54.573909][ T8000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.580501][ T8000] CR2: 00000000004dac90 CR3: 000000009a690000 CR4: 00000000001406e0 [ 54.588467][ T8000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.596454][ T8000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.604433][ T8000] Kernel panic - not syncing: Fatal exception [ 54.611417][ T8000] Kernel Offset: disabled [ 54.615735][ T8000] Rebooting in 86400 seconds..