[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.495877] audit: type=1800 audit(1546508224.307:25): pid=7857 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 40.525779] audit: type=1800 audit(1546508224.317:26): pid=7857 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 40.552812] audit: type=1800 audit(1546508224.317:27): pid=7857 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 '10.128.0.15' (ECDSA) to the list of known hosts. 2019/01/03 09:38:08 parsed 1 programs 2019/01/03 09:38:10 executed programs: 0 syzkaller login: [ 106.471163] IPVS: ftp: loaded support on port[0] = 21 [ 106.536336] chnl_net:caif_netlink_parms(): no params data found [ 106.563347] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.570158] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.577094] device bridge_slave_0 entered promiscuous mode [ 106.584030] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.590457] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.597243] device bridge_slave_1 entered promiscuous mode [ 106.612312] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 106.620925] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 106.636668] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 106.643995] team0: Port device team_slave_0 added [ 106.649334] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 106.656394] team0: Port device team_slave_1 added [ 106.661631] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 106.668944] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 106.731668] device hsr_slave_0 entered promiscuous mode [ 106.779137] device hsr_slave_1 entered promiscuous mode [ 106.859348] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 106.866217] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 106.880563] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.887311] bridge0: port 2(bridge_slave_1) entered forwarding state [ 106.894378] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.900996] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.931669] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 106.937727] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.946913] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 106.955150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 106.974339] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.981731] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.988705] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 106.999154] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 107.005366] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.014059] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 107.022243] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.028637] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.039163] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 107.046678] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.053033] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.070349] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 107.077964] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 107.086969] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 107.095246] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 107.102689] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 107.111050] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 107.117054] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 107.130707] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 107.142130] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.828172] kasan: CONFIG_KASAN_INLINE enabled [ 107.832984] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 107.840420] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 107.846680] CPU: 1 PID: 8178 Comm: syz-executor0 Not tainted 4.20.0-next-20190102 #3 [ 107.854552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.864044] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 107.869602] 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 [ 107.888494] RSP: 0018:ffff888088d2f120 EFLAGS: 00010203 [ 107.893865] RAX: dffffc0000000000 RBX: ffff88808b473240 RCX: 0000000000000000 [ 107.901165] RDX: 0000000000000001 RSI: ffffffff87b73e82 RDI: 000000000000000e [ 107.908446] RBP: ffff888088d2f3e8 R08: ffff88809815c0c0 R09: ffff8880a86b1f58 [ 107.915727] R10: ffffed10150d63e0 R11: ffff8880a86b1f07 R12: ffff88809815f1e0 [ 107.923009] R13: ffff8880a86b1f08 R14: ffff88808b4736a0 R15: 0000000000000000 [ 107.930294] FS: 00007f4d9f9b2700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 107.938520] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 107.944393] CR2: 0000000000000000 CR3: 000000009067b000 CR4: 00000000001406e0 [ 107.951672] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 107.958933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 107.966188] Call Trace: [ 107.968771] ? __kmalloc_node_track_caller+0x4e/0x70 [ 107.973870] ? __alloc_skb+0x185/0x730 [ 107.977771] ? smc_diag_handler_dump+0x350/0x350 [ 107.982530] ? sock_sendmsg+0xdd/0x130 [ 107.986412] ? ___sys_sendmsg+0x7ec/0x910 [ 107.990559] ? __sys_sendmsg+0x112/0x270 [ 107.994611] ? __sys_sendmsg+0x230/0x270 [ 107.998667] ? do_syscall_64+0x1a3/0x800 [ 108.002731] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 108.008260] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 108.013805] ? check_preemption_disabled+0x48/0x290 [ 108.018824] ? __lock_is_held+0xb6/0x140 [ 108.022898] ? __kmalloc_node_track_caller+0x3d/0x70 [ 108.028001] ? lock_acquire+0x1db/0x570 [ 108.031980] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 108.037100] ? lock_release+0xc40/0xc40 [ 108.041075] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 108.046610] ? kasan_check_write+0x14/0x20 [ 108.050879] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 108.055944] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 108.060955] ? find_held_lock+0x35/0x120 [ 108.065011] smc_diag_dump+0x27/0x80 [ 108.068729] netlink_dump+0x5f2/0x1070 [ 108.072616] ? netlink_broadcast+0x50/0x50 [ 108.076867] __netlink_dump_start+0x5b4/0x7e0 [ 108.081375] smc_diag_handler_dump+0x2a7/0x350 [ 108.085964] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 108.090628] ? lock_downgrade+0x910/0x910 [ 108.094814] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 108.100036] ? rcu_read_unlock_special+0x380/0x380 [ 108.104976] sock_diag_rcv_msg+0x322/0x410 [ 108.109219] netlink_rcv_skb+0x17d/0x410 [ 108.113282] ? sock_diag_bind+0x80/0x80 [ 108.117259] ? netlink_ack+0xba0/0xba0 [ 108.121163] sock_diag_rcv+0x2b/0x40 [ 108.124877] netlink_unicast+0x574/0x770 [ 108.128992] ? netlink_attachskb+0x980/0x980 [ 108.133402] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 108.138932] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 108.143944] netlink_sendmsg+0xa05/0xf90 [ 108.148000] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 108.153552] ? netlink_unicast+0x770/0x770 [ 108.157783] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 108.162640] ? apparmor_socket_sendmsg+0x2a/0x30 [ 108.167390] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 108.172924] ? security_socket_sendmsg+0x93/0xc0 [ 108.177681] ? netlink_unicast+0x770/0x770 [ 108.181918] sock_sendmsg+0xdd/0x130 [ 108.185633] ___sys_sendmsg+0x7ec/0x910 [ 108.189629] ? copy_msghdr_from_user+0x570/0x570 [ 108.194399] ? ksys_dup3+0x660/0x660 [ 108.198123] ? ___might_sleep+0x1e7/0x310 [ 108.202288] ? __might_fault+0x12b/0x1e0 [ 108.206348] ? find_held_lock+0x35/0x120 [ 108.210451] ? __might_fault+0x12b/0x1e0 [ 108.214531] ? __fget_light+0x2db/0x420 [ 108.218502] ? fget_raw+0x20/0x20 [ 108.221947] ? lock_release+0xc40/0xc40 [ 108.225932] ? trace_hardirqs_off_caller+0x300/0x300 [ 108.231057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 108.236594] ? __fdget+0x1b/0x20 [ 108.239960] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 108.245497] ? sockfd_lookup_light+0xc2/0x160 [ 108.250197] __sys_sendmsg+0x112/0x270 [ 108.254199] ? __ia32_sys_shutdown+0x80/0x80 [ 108.258615] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.263991] ? trace_hardirqs_off_caller+0x300/0x300 [ 108.269239] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 108.274006] __x64_sys_sendmsg+0x78/0xb0 [ 108.278080] do_syscall_64+0x1a3/0x800 [ 108.281968] ? syscall_return_slowpath+0x5f0/0x5f0 [ 108.286893] ? prepare_exit_to_usermode+0x232/0x3b0 [ 108.291904] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 108.296755] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 108.301972] RIP: 0033:0x457ec9 [ 108.305166] 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 [ 108.324075] RSP: 002b:00007f4d9f9b1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 108.331779] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 108.339053] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007 [ 108.346317] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 108.353576] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4d9f9b26d4 [ 108.360844] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 108.368109] Modules linked in: [ 108.372352] ---[ end trace 9b7ab97297c3739f ]--- [ 108.377137] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 108.382719] 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 [ 108.401740] RSP: 0018:ffff888088d2f120 EFLAGS: 00010203 [ 108.407101] RAX: dffffc0000000000 RBX: ffff88808b473240 RCX: 0000000000000000 [ 108.414383] RDX: 0000000000000001 RSI: ffffffff87b73e82 RDI: 000000000000000e [ 108.421674] RBP: ffff888088d2f3e8 R08: ffff88809815c0c0 R09: ffff8880a86b1f58 [ 108.428951] R10: ffffed10150d63e0 R11: ffff8880a86b1f07 R12: ffff88809815f1e0 [ 108.436210] R13: ffff8880a86b1f08 R14: ffff88808b4736a0 R15: 0000000000000000 [ 108.443492] FS: 00007f4d9f9b2700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 108.451750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.457621] CR2: 0000000000000000 CR3: 000000009067b000 CR4: 00000000001406e0 [ 108.464945] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.472221] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 108.479524] Kernel panic - not syncing: Fatal exception [ 108.485908] Kernel Offset: disabled [ 108.489530] Rebooting in 86400 seconds..