[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 41.114577] audit: type=1800 audit(1546587064.975:25): pid=7848 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 41.150068] audit: type=1800 audit(1546587064.975:26): pid=7848 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 41.187614] audit: type=1800 audit(1546587064.975:27): pid=7848 uid=0 auid=4294967295 ses=4294967295 subj=_ 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: [ 45.471249] sshd (7985) used greatest stack depth: 19848 bytes left Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. 2019/01/04 07:32:00 parsed 1 programs 2019/01/04 07:32:01 executed programs: 0 [ 97.874949] IPVS: ftp: loaded support on port[0] = 21 [ 97.931059] chnl_net:caif_netlink_parms(): no params data found [ 97.959135] bridge0: port 1(bridge_slave_0) entered blocking state [ 97.966037] bridge0: port 1(bridge_slave_0) entered disabled state [ 97.973094] device bridge_slave_0 entered promiscuous mode [ 97.980170] bridge0: port 2(bridge_slave_1) entered blocking state [ 97.986599] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.993511] device bridge_slave_1 entered promiscuous mode [ 98.008551] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 98.017179] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 98.032888] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 98.040156] team0: Port device team_slave_0 added [ 98.045684] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 98.052831] team0: Port device team_slave_1 added [ 98.058024] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 98.065335] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 98.132543] device hsr_slave_0 entered promiscuous mode [ 98.190731] device hsr_slave_1 entered promiscuous mode [ 98.250905] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 98.257748] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 98.271717] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.278120] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.284878] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.291235] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.323254] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 98.329418] 8021q: adding VLAN 0 to HW filter on device bond0 [ 98.337541] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 98.346081] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 98.365878] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.373469] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.382150] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 98.392494] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 98.398607] 8021q: adding VLAN 0 to HW filter on device team0 [ 98.407568] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 98.415905] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.422354] bridge0: port 1(bridge_slave_0) entered forwarding state [ 98.441297] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 98.448836] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.455209] bridge0: port 2(bridge_slave_1) entered forwarding state [ 98.462671] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 98.471580] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 98.479078] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 98.487234] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 98.495923] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 98.505631] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 98.512441] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 98.524284] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 98.535585] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 98.626329] kasan: CONFIG_KASAN_INLINE enabled [ 98.631391] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 98.638855] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 98.645072] CPU: 0 PID: 8030 Comm: syz-executor0 Not tainted 4.20.0+ #8 [ 98.651806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.661159] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 98.666806] 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 [ 98.685705] RSP: 0018:ffff88808599f120 EFLAGS: 00010203 [ 98.691130] RAX: dffffc0000000000 RBX: ffff888089af1280 RCX: 0000000000000000 [ 98.698394] RDX: 0000000000000001 RSI: ffffffff87b69662 RDI: 000000000000000e [ 98.705645] RBP: ffff88808599f3e8 R08: ffff8880a88a2280 R09: ffff88808a340fd8 [ 98.712903] R10: ffffed10114681f0 R11: ffff88808a340f87 R12: ffff8880a90af720 [ 98.720165] R13: ffff88808a340f88 R14: ffff888089af16e0 R15: 0000000000000000 [ 98.727655] FS: 00007fa939a05700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 98.735869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.741806] CR2: 0000000000000000 CR3: 0000000098e34000 CR4: 00000000001406f0 [ 98.749167] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.756418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.763672] Call Trace: [ 98.766252] ? __kmalloc_node_track_caller+0x4e/0x70 [ 98.771348] ? __alloc_skb+0x185/0x730 [ 98.775239] ? smc_diag_handler_dump+0x350/0x350 [ 98.779994] ? sock_sendmsg+0xdd/0x130 [ 98.783869] ? ___sys_sendmsg+0x7ec/0x910 [ 98.788002] ? __sys_sendmsg+0x112/0x270 [ 98.792044] ? __sys_sendmsg+0x230/0x270 [ 98.796133] ? do_syscall_64+0x1a3/0x800 [ 98.800231] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.805760] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.811284] ? check_preemption_disabled+0x48/0x290 [ 98.816308] ? __lock_is_held+0xb6/0x140 [ 98.820359] ? __kmalloc_node_track_caller+0x3d/0x70 [ 98.825459] ? lock_acquire+0x1db/0x570 [ 98.829428] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 98.834524] ? lock_release+0xc40/0xc40 [ 98.838496] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.844134] ? kasan_check_write+0x14/0x20 [ 98.848439] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 98.853470] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 98.858479] ? find_held_lock+0x35/0x120 [ 98.862532] smc_diag_dump+0x27/0x80 [ 98.866243] netlink_dump+0x5f2/0x1070 [ 98.870118] ? netlink_broadcast+0x50/0x50 [ 98.874339] __netlink_dump_start+0x5b4/0x7e0 [ 98.878819] smc_diag_handler_dump+0x2a7/0x350 [ 98.883393] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 98.888157] ? lock_downgrade+0x910/0x910 [ 98.892396] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 98.897579] ? rcu_read_unlock_special+0x380/0x380 [ 98.902497] sock_diag_rcv_msg+0x322/0x410 [ 98.907139] netlink_rcv_skb+0x17d/0x410 [ 98.911360] ? sock_diag_bind+0x80/0x80 [ 98.915567] ? netlink_ack+0xba0/0xba0 [ 98.919451] sock_diag_rcv+0x2b/0x40 [ 98.923164] netlink_unicast+0x574/0x770 [ 98.927359] ? netlink_attachskb+0x980/0x980 [ 98.931764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.937287] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 98.942296] netlink_sendmsg+0xa05/0xf90 [ 98.946349] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.951873] ? netlink_unicast+0x770/0x770 [ 98.956269] ? smack_socket_sendmsg+0xb1/0x1a0 [ 98.960839] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.966360] ? security_socket_sendmsg+0x93/0xc0 [ 98.971107] ? netlink_unicast+0x770/0x770 [ 98.975361] sock_sendmsg+0xdd/0x130 [ 98.979065] ___sys_sendmsg+0x7ec/0x910 [ 98.983122] ? copy_msghdr_from_user+0x570/0x570 [ 98.987867] ? iterate_fd+0x4b0/0x4b0 [ 98.991653] ? __might_fault+0x12b/0x1e0 [ 98.995696] ? find_held_lock+0x35/0x120 [ 98.999860] ? __might_fault+0x12b/0x1e0 [ 99.003908] ? __fget_light+0x2db/0x420 [ 99.007860] ? fget_raw+0x20/0x20 [ 99.011297] ? lock_release+0xc40/0xc40 [ 99.015288] ? trace_hardirqs_off_caller+0x300/0x300 [ 99.020392] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 99.025918] ? __fdget+0x1b/0x20 [ 99.029267] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.034872] ? sockfd_lookup_light+0xc2/0x160 [ 99.039356] __sys_sendmsg+0x112/0x270 [ 99.043224] ? __ia32_sys_shutdown+0x80/0x80 [ 99.047620] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.052966] ? trace_hardirqs_off_caller+0x300/0x300 [ 99.058356] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 99.063107] __x64_sys_sendmsg+0x78/0xb0 [ 99.067255] do_syscall_64+0x1a3/0x800 [ 99.071268] ? syscall_return_slowpath+0x5f0/0x5f0 [ 99.076183] ? prepare_exit_to_usermode+0x232/0x3b0 [ 99.081196] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.086131] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.091311] RIP: 0033:0x457ec9 [ 99.094500] 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 [ 99.113393] RSP: 002b:00007fa939a04c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 99.121219] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 99.128474] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007 [ 99.135829] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 99.143106] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa939a056d4 [ 99.150531] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 99.157795] Modules linked in: [ 99.161049] ---[ end trace 30e2351c0886f8f6 ]--- [ 99.165799] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 99.171399] 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 [ 99.190333] RSP: 0018:ffff88808599f120 EFLAGS: 00010203 [ 99.195813] RAX: dffffc0000000000 RBX: ffff888089af1280 RCX: 0000000000000000 [ 99.203110] RDX: 0000000000000001 RSI: ffffffff87b69662 RDI: 000000000000000e [ 99.210369] RBP: ffff88808599f3e8 R08: ffff8880a88a2280 R09: ffff88808a340fd8 [ 99.217654] R10: ffffed10114681f0 R11: ffff88808a340f87 R12: ffff8880a90af720 [ 99.225005] R13: ffff88808a340f88 R14: ffff888089af16e0 R15: 0000000000000000 [ 99.232342] FS: 00007fa939a05700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 99.240583] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.246456] CR2: 0000000000000000 CR3: 0000000098e34000 CR4: 00000000001406f0 [ 99.253809] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.261088] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.268340] Kernel panic - not syncing: Fatal exception [ 99.274624] Kernel Offset: disabled [ 99.278420] Rebooting in 86400 seconds..