[ 36.692317] audit: type=1800 audit(1550997640.406:27): pid=7521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 36.712229] audit: type=1800 audit(1550997640.406:28): pid=7521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 37.382154] audit: type=1800 audit(1550997641.136:29): pid=7521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 37.401672] audit: type=1800 audit(1550997641.136:30): pid=7521 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.65' (ECDSA) to the list of known hosts. 2019/02/24 08:41:26 parsed 1 programs 2019/02/24 08:41:27 executed programs: 0 syzkaller login: [ 84.237259] IPVS: ftp: loaded support on port[0] = 21 [ 84.289406] chnl_net:caif_netlink_parms(): no params data found [ 84.316999] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.324669] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.331878] device bridge_slave_0 entered promiscuous mode [ 84.338912] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.345321] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.352313] device bridge_slave_1 entered promiscuous mode [ 84.366854] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 84.375410] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 84.390230] team0: Port device team_slave_0 added [ 84.396030] team0: Port device team_slave_1 added [ 84.452279] device hsr_slave_0 entered promiscuous mode [ 84.520821] device hsr_slave_1 entered promiscuous mode [ 84.577142] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.583713] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.590446] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.596822] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.625061] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.635797] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.645031] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.652588] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.659724] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 84.669734] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.678051] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.686071] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.692442] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.711765] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.719396] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.725792] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.733830] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.741509] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.748956] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.756644] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.765379] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.775188] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.789684] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.828691] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details. [ 86.517741] kasan: CONFIG_KASAN_INLINE enabled [ 86.526574] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 86.535180] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 86.541409] CPU: 0 PID: 7863 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #85 [ 86.548572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.557918] RIP: 0010:__dentry_path+0x49e/0x7c0 [ 86.562574] Code: 89 fc 41 83 e4 01 44 89 e6 e8 5e e3 b2 ff 45 84 e4 0f 85 04 02 00 00 e8 10 e2 b2 ff 48 8b 85 18 ff ff ff 44 89 bd 40 ff ff ff <80> 38 00 0f 85 f9 02 00 00 48 8b 85 38 ff ff ff 41 83 e7 01 44 89 [ 86.581459] RSP: 0018:ffff8880987afad0 EFLAGS: 00010293 [ 86.586803] RAX: dffffc0000000005 RBX: 0000000000000000 RCX: ffffffff81bcff62 [ 86.594056] RDX: 0000000000000000 RSI: ffffffff81bcff70 RDI: 0000000000000001 [ 86.601312] RBP: ffff8880987afbc0 R08: ffff8880871202c0 R09: 0000000000000000 [ 86.608564] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 86.615819] R13: ffff8880987afb98 R14: ffff88809a3e37fe R15: 0000000000000dc2 [ 86.623071] FS: 00007fa223d90700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 86.631349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.637328] CR2: 00007fbb808cc000 CR3: 00000000877fe000 CR4: 00000000001426f0 [ 86.644631] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.651911] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.659171] Call Trace: [ 86.661765] ? simple_dname+0x1f0/0x1f0 [ 86.665738] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 86.671189] ? kmem_cache_alloc_trace+0x354/0x760 [ 86.676042] dentry_path_raw+0x26/0x30 [ 86.679931] kvm_uevent_notify_change.part.0+0x213/0x440 [ 86.685383] kvm_dev_ioctl+0x1132/0x1750 [ 86.689444] ? kvm_debugfs_release+0x90/0x90 [ 86.693845] ? find_held_lock+0x35/0x130 [ 86.697911] ? __fget+0x340/0x540 [ 86.701365] ? kvm_debugfs_release+0x90/0x90 [ 86.705797] do_vfs_ioctl+0xd6e/0x1390 [ 86.709682] ? ioctl_preallocate+0x210/0x210 [ 86.714086] ? __fget+0x367/0x540 [ 86.717547] ? iterate_fd+0x360/0x360 [ 86.721354] ? nsecs_to_jiffies+0x30/0x30 [ 86.725504] ? security_file_ioctl+0x93/0xc0 [ 86.729912] ksys_ioctl+0xab/0xd0 [ 86.733360] __x64_sys_ioctl+0x73/0xb0 [ 86.737250] do_syscall_64+0x103/0x610 [ 86.741153] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.746336] RIP: 0033:0x457e29 [ 86.749537] Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 86.768456] RSP: 002b:00007fa223d8fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.776173] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29 [ 86.783438] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000007 [ 86.790702] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 86.797963] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa223d906d4 [ 86.805227] R13: 00000000004c093a R14: 00000000004d2750 R15: 00000000ffffffff [ 86.812498] Modules linked in: [ 86.818485] ---[ end trace e72056022be14aed ]--- [ 86.823326] RIP: 0010:__dentry_path+0x49e/0x7c0 [ 86.828043] Code: 89 fc 41 83 e4 01 44 89 e6 e8 5e e3 b2 ff 45 84 e4 0f 85 04 02 00 00 e8 10 e2 b2 ff 48 8b 85 18 ff ff ff 44 89 bd 40 ff ff ff <80> 38 00 0f 85 f9 02 00 00 48 8b 85 38 ff ff ff 41 83 e7 01 44 89 [ 86.846979] RSP: 0018:ffff8880987afad0 EFLAGS: 00010293 [ 86.852462] RAX: dffffc0000000005 RBX: 0000000000000000 RCX: ffffffff81bcff62 [ 86.859719] RDX: 0000000000000000 RSI: ffffffff81bcff70 RDI: 0000000000000001 [ 86.867010] RBP: ffff8880987afbc0 R08: ffff8880871202c0 R09: 0000000000000000 [ 86.874407] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 86.881733] R13: ffff8880987afb98 R14: ffff88809a3e37fe R15: 0000000000000dc2 [ 86.889107] FS: 00007fa223d90700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 86.897356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.903352] CR2: 00007fbb808cc000 CR3: 00000000877fe000 CR4: 00000000001426f0 [ 86.910665] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.917934] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.925216] Kernel panic - not syncing: Fatal exception [ 86.931491] Kernel Offset: disabled [ 86.935113] Rebooting in 86400 seconds..