[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 75.243841][ T27] audit: type=1800 audit(1578433020.364:25): pid=9448 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 75.268630][ T27] audit: type=1800 audit(1578433020.364:26): pid=9448 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 75.312382][ T27] audit: type=1800 audit(1578433020.364:27): pid=9448 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 '10.128.1.58' (ECDSA) to the list of known hosts. 2020/01/07 21:37:15 parsed 1 programs 2020/01/07 21:37:17 executed programs: 0 syzkaller login: [ 92.014770][ T9619] IPVS: ftp: loaded support on port[0] = 21 [ 92.087515][ T9619] chnl_net:caif_netlink_parms(): no params data found [ 92.122506][ T9619] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.130280][ T9619] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.139242][ T9619] device bridge_slave_0 entered promiscuous mode [ 92.147605][ T9619] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.154800][ T9619] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.163438][ T9619] device bridge_slave_1 entered promiscuous mode [ 92.182238][ T9619] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.193026][ T9619] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.214181][ T9619] team0: Port device team_slave_0 added [ 92.221823][ T9619] team0: Port device team_slave_1 added [ 92.320521][ T9619] device hsr_slave_0 entered promiscuous mode [ 92.379441][ T9619] device hsr_slave_1 entered promiscuous mode [ 92.479729][ T9619] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.521374][ T9619] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.571106][ T9619] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.620863][ T9619] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.670131][ T9619] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.677278][ T9619] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.685108][ T9619] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.692209][ T9619] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.733689][ T9619] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.746966][ T3469] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.757745][ T3469] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.765923][ T3469] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.774093][ T3469] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.787377][ T9619] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.798552][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.806932][ T2988] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.814042][ T2988] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.825689][ T3469] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.835021][ T3469] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.842124][ T3469] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.860380][ T2988] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.876791][ T9619] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 92.887907][ T9619] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 92.901525][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.910079][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.918428][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.926929][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.936688][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 92.954479][ T3469] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 92.962797][ T3469] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.974578][ T9619] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 92.992769][ T3469] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 93.012317][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 93.020510][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 93.028134][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 93.039036][ T9619] device veth0_vlan entered promiscuous mode [ 93.051103][ T9619] device veth1_vlan entered promiscuous mode [ 93.079099][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 93.087268][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 93.151625][ T9623] kasan: CONFIG_KASAN_INLINE enabled [ 93.157133][ T9623] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 93.165270][ T9623] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 93.172250][ T9623] CPU: 1 PID: 9623 Comm: syz-executor.0 Not tainted 5.5.0-rc4-syzkaller #0 [ 93.180941][ T9623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.191008][ T9623] RIP: 0010:hash_netport6_uadt+0x21d/0xdb0 [ 93.196852][ T9623] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 3a 09 00 00 4c 89 f2 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ff [ 93.216451][ T9623] RSP: 0018:ffffc90001fa7160 EFLAGS: 00010246 [ 93.222552][ T9623] RAX: dffffc0000000000 RBX: ffffc90001fa7320 RCX: 0000000000000000 [ 93.230517][ T9623] RDX: 0000000000000000 RSI: ffffffff8684f64a RDI: ffff8880a266c860 [ 93.238485][ T9623] RBP: ffffc90001fa72b8 R08: 0000000000000000 R09: 0000000000000000 [ 93.246544][ T9623] R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff88809f2fec00 [ 93.254564][ T9623] R13: ffffc90001fa71e0 R14: 0000000000000000 R15: 0000000000000000 [ 93.262527][ T9623] FS: 00007f6b59aed700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.271546][ T9623] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.278112][ T9623] CR2: 0000000000000000 CR3: 000000009570b000 CR4: 00000000001406e0 [ 93.286070][ T9623] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.294022][ T9623] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.302001][ T9623] Call Trace: [ 93.305279][ T9623] ? hash_netport_create+0xa60/0xa60 [ 93.310540][ T9623] ? hash_netport6_same_set+0x1a0/0x1a0 [ 93.316076][ T9623] ? ip_set_utest+0x4aa/0x890 [ 93.320737][ T9623] ? __kasan_check_read+0x11/0x20 [ 93.325755][ T9623] ip_set_utest+0x55b/0x890 [ 93.330251][ T9623] ? ip_set_put_byindex+0x490/0x490 [ 93.335428][ T9623] ? __mutex_lock+0x458/0x13c0 [ 93.340176][ T9623] ? ip_set_put_byindex+0x490/0x490 [ 93.345364][ T9623] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 93.350282][ T9623] ? nfnetlink_bind+0x2c0/0x2c0 [ 93.355108][ T9623] ? find_held_lock+0x35/0x130 [ 93.359853][ T9623] ? __local_bh_enable_ip+0x15a/0x270 [ 93.365208][ T9623] ? __dev_queue_xmit+0x175c/0x35c0 [ 93.370395][ T9623] ? __local_bh_enable_ip+0x15a/0x270 [ 93.375763][ T9623] ? lockdep_hardirqs_on+0x421/0x5e0 [ 93.381037][ T9623] ? __dev_queue_xmit+0x172e/0x35c0 [ 93.386227][ T9623] ? trace_hardirqs_on+0x67/0x240 [ 93.391236][ T9623] ? __dev_queue_xmit+0x172e/0x35c0 [ 93.396424][ T9623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.402642][ T9623] ? apparmor_capable+0x497/0x900 [ 93.407642][ T9623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.413874][ T9623] ? __kasan_check_read+0x11/0x20 [ 93.418874][ T9623] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 93.424310][ T9623] netlink_rcv_skb+0x177/0x450 [ 93.429049][ T9623] ? nfnetlink_bind+0x2c0/0x2c0 [ 93.433874][ T9623] ? netlink_ack+0xb50/0xb50 [ 93.438443][ T9623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.444661][ T9623] ? ns_capable_common+0x93/0x100 [ 93.449676][ T9623] ? ns_capable+0x20/0x30 [ 93.453984][ T9623] ? __netlink_ns_capable+0x104/0x140 [ 93.459348][ T9623] nfnetlink_rcv+0x1ba/0x460 [ 93.463919][ T9623] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 93.469352][ T9623] ? netlink_deliver_tap+0x24a/0xbe0 [ 93.474615][ T9623] netlink_unicast+0x58c/0x7d0 [ 93.479358][ T9623] ? netlink_attachskb+0x870/0x870 [ 93.484456][ T9623] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 93.490163][ T9623] ? __check_object_size+0x3d/0x437 [ 93.495342][ T9623] netlink_sendmsg+0x91c/0xea0 [ 93.500084][ T9623] ? netlink_unicast+0x7d0/0x7d0 [ 93.505011][ T9623] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 93.510534][ T9623] ? apparmor_socket_sendmsg+0x2a/0x30 [ 93.515977][ T9623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.522210][ T9623] ? security_socket_sendmsg+0x8d/0xc0 [ 93.527651][ T9623] ? netlink_unicast+0x7d0/0x7d0 [ 93.532563][ T9623] sock_sendmsg+0xd7/0x130 [ 93.536955][ T9623] ____sys_sendmsg+0x753/0x880 [ 93.541697][ T9623] ? kernel_sendmsg+0x50/0x50 [ 93.546351][ T9623] ? __fget+0x35d/0x550 [ 93.550488][ T9623] ? find_held_lock+0x35/0x130 [ 93.555231][ T9623] ___sys_sendmsg+0x100/0x170 [ 93.559885][ T9623] ? sendmsg_copy_msghdr+0x70/0x70 [ 93.564970][ T9623] ? __kasan_check_read+0x11/0x20 [ 93.569971][ T9623] ? __fget+0x37f/0x550 [ 93.574115][ T9623] ? ksys_dup3+0x3e0/0x3e0 [ 93.578523][ T9623] ? __fget_light+0x1a9/0x230 [ 93.583187][ T9623] ? __fdget+0x1b/0x20 [ 93.587233][ T9623] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.593472][ T9623] __sys_sendmsg+0x105/0x1d0 [ 93.598046][ T9623] ? __sys_sendmsg_sock+0xc0/0xc0 [ 93.603169][ T9623] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 93.608608][ T9623] ? do_syscall_64+0x26/0x790 [ 93.613310][ T9623] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.619358][ T9623] ? do_syscall_64+0x26/0x790 [ 93.624030][ T9623] __x64_sys_sendmsg+0x78/0xb0 [ 93.628785][ T9623] do_syscall_64+0xfa/0x790 [ 93.633269][ T9623] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.639147][ T9623] RIP: 0033:0x45af49 [ 93.643019][ T9623] Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 93.663565][ T9623] RSP: 002b:00007f6b59aecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.671951][ T9623] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49 [ 93.679990][ T9623] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000007 [ 93.687939][ T9623] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 93.695897][ T9623] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6b59aed6d4 [ 93.703857][ T9623] R13: 00000000004c9e62 R14: 00000000004e2e98 R15: 00000000ffffffff [ 93.711816][ T9623] Modules linked in: [ 93.715746][ T9623] ---[ end trace 2e932aeabdcd7e85 ]--- [ 93.721241][ T9623] RIP: 0010:hash_netport6_uadt+0x21d/0xdb0 [ 93.727041][ T9623] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 3a 09 00 00 4c 89 f2 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ff [ 93.746673][ T9623] RSP: 0018:ffffc90001fa7160 EFLAGS: 00010246 [ 93.752757][ T9623] RAX: dffffc0000000000 RBX: ffffc90001fa7320 RCX: 0000000000000000 [ 93.760761][ T9623] RDX: 0000000000000000 RSI: ffffffff8684f64a RDI: ffff8880a266c860 [ 93.768757][ T9623] RBP: ffffc90001fa72b8 R08: 0000000000000000 R09: 0000000000000000 [ 93.776716][ T9623] R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: ffff88809f2fec00 [ 93.784702][ T9623] R13: ffffc90001fa71e0 R14: 0000000000000000 R15: 0000000000000000 [ 93.792804][ T9623] FS: 00007f6b59aed700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.801759][ T9623] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.808373][ T9623] CR2: 0000000000000000 CR3: 000000009570b000 CR4: 00000000001406e0 [ 93.816330][ T9623] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.824411][ T9623] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.832425][ T9623] Kernel panic - not syncing: Fatal exception in interrupt [ 93.841077][ T9623] Kernel Offset: disabled [ 93.845403][ T9623] Rebooting in 86400 seconds..