[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.764580][ T26] audit: type=1800 audit(1567887109.494:25): pid=8595 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.804824][ T26] audit: type=1800 audit(1567887109.494:26): pid=8595 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.830095][ T26] audit: type=1800 audit(1567887109.504:27): pid=8595 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 '10.128.0.225' (ECDSA) to the list of known hosts. 2019/09/07 20:11:57 parsed 1 programs 2019/09/07 20:11:58 executed programs: 0 syzkaller login: [ 73.214497][ T8763] IPVS: ftp: loaded support on port[0] = 21 [ 73.279311][ T8763] chnl_net:caif_netlink_parms(): no params data found [ 73.306891][ T8763] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.314993][ T8763] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.322852][ T8763] device bridge_slave_0 entered promiscuous mode [ 73.330907][ T8763] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.338166][ T8763] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.345857][ T8763] device bridge_slave_1 entered promiscuous mode [ 73.362995][ T8763] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.373510][ T8763] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.392745][ T8763] team0: Port device team_slave_0 added [ 73.399929][ T8763] team0: Port device team_slave_1 added [ 73.463942][ T8763] device hsr_slave_0 entered promiscuous mode [ 73.501526][ T8763] device hsr_slave_1 entered promiscuous mode [ 73.549588][ T8763] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.556887][ T8763] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.564918][ T8763] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.572114][ T8763] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.605761][ T8763] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.619898][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.640833][ T3617] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.649708][ T3617] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.658714][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.670306][ T8763] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.681970][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.690962][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.698218][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.710000][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.719108][ T3617] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.726314][ T3617] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.743588][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.753337][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.765640][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.776769][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.788380][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.799333][ T8763] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.818232][ T8763] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.710687][ T9030] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 75.718538][ T9030] #PF: supervisor instruction fetch in kernel mode [ 75.725016][ T9030] #PF: error_code(0x0010) - not-present page [ 75.730973][ T9030] PGD 8946e067 P4D 8946e067 PUD 8946f067 PMD 0 [ 75.737316][ T9030] Oops: 0010 [#1] PREEMPT SMP KASAN [ 75.742544][ T9030] CPU: 0 PID: 9030 Comm: syz-executor.0 Not tainted 5.3.0-rc6-next-20190830 #75 [ 75.751537][ T9030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.761647][ T9030] RIP: 0010:0x0 [ 75.765102][ T9030] Code: Bad RIP value. [ 75.769211][ T9030] RSP: 0018:ffff888095faf4d8 EFLAGS: 00010246 [ 75.775291][ T9030] RAX: dffffc0000000000 RBX: ffffffff884a25a0 RCX: ffffffff85b92086 [ 75.783243][ T9030] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88809f091000 [ 75.791195][ T9030] RBP: ffff888095faf5d0 R08: ffff888087cf4340 R09: ffff888095faf658 [ 75.799154][ T9030] R10: ffffed1012bf5ed9 R11: ffff888095faf6cf R12: ffff88809f091000 [ 75.807106][ T9030] R13: 0000000000000001 R14: ffff888095faf5a8 R15: ffffffff884a25a0 [ 75.815059][ T9030] FS: 00007f7910a9f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.823962][ T9030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.830521][ T9030] CR2: ffffffffffffffd6 CR3: 0000000097dc0000 CR4: 00000000001406f0 [ 75.838478][ T9030] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.846430][ T9030] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.854407][ T9030] Call Trace: [ 75.857680][ T9030] tc_bind_tclass+0x13e/0x2f0 [ 75.862334][ T9030] ? qdisc_class_hash_init+0x110/0x110 [ 75.867791][ T9030] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.874013][ T9030] ? ns_capable_common+0x93/0x100 [ 75.879016][ T9030] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 75.884716][ T9030] ? qdisc_match_from_root+0x18a/0x280 [ 75.890153][ T9030] tc_ctl_tclass+0xadb/0xcd0 [ 75.894723][ T9030] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 75.900519][ T9030] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 75.905645][ T9030] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.911874][ T9030] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 75.917664][ T9030] rtnetlink_rcv_msg+0x463/0xb00 [ 75.922591][ T9030] ? rtnetlink_put_metrics+0x590/0x590 [ 75.928030][ T9030] ? netlink_deliver_tap+0x22d/0xbf0 [ 75.933300][ T9030] ? find_held_lock+0x35/0x130 [ 75.938045][ T9030] netlink_rcv_skb+0x177/0x450 [ 75.942819][ T9030] ? rtnetlink_put_metrics+0x590/0x590 [ 75.948256][ T9030] ? netlink_ack+0xb50/0xb50 [ 75.952825][ T9030] ? __kasan_check_read+0x11/0x20 [ 75.957827][ T9030] ? netlink_deliver_tap+0x254/0xbf0 [ 75.963092][ T9030] rtnetlink_rcv+0x1d/0x30 [ 75.967520][ T9030] netlink_unicast+0x531/0x710 [ 75.972261][ T9030] ? netlink_attachskb+0x7c0/0x7c0 [ 75.977350][ T9030] ? _copy_from_iter_full+0x25d/0x8c0 [ 75.982704][ T9030] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 75.988399][ T9030] ? __check_object_size+0x3d/0x437 [ 75.993586][ T9030] netlink_sendmsg+0x8a5/0xd60 [ 75.998327][ T9030] ? netlink_unicast+0x710/0x710 [ 76.003260][ T9030] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 76.008784][ T9030] ? apparmor_socket_sendmsg+0x2a/0x30 [ 76.014220][ T9030] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.020441][ T9030] ? security_socket_sendmsg+0x8d/0xc0 [ 76.025897][ T9030] ? netlink_unicast+0x710/0x710 [ 76.030817][ T9030] sock_sendmsg+0xd7/0x130 [ 76.035213][ T9030] ___sys_sendmsg+0x803/0x920 [ 76.039865][ T9030] ? copy_msghdr_from_user+0x440/0x440 [ 76.045306][ T9030] ? __kasan_check_read+0x11/0x20 [ 76.050307][ T9030] ? __fget+0x384/0x560 [ 76.054439][ T9030] ? ksys_dup3+0x3e0/0x3e0 [ 76.058834][ T9030] ? __fget_light+0x1a9/0x230 [ 76.063486][ T9030] ? __fdget+0x1b/0x20 [ 76.067532][ T9030] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.073751][ T9030] __sys_sendmsg+0x105/0x1d0 [ 76.078317][ T9030] ? __sys_sendmsg_sock+0xd0/0xd0 [ 76.083323][ T9030] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 76.088756][ T9030] ? do_syscall_64+0x26/0x760 [ 76.093413][ T9030] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.099454][ T9030] ? do_syscall_64+0x26/0x760 [ 76.104115][ T9030] __x64_sys_sendmsg+0x78/0xb0 [ 76.108870][ T9030] do_syscall_64+0xfa/0x760 [ 76.113354][ T9030] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.119241][ T9030] RIP: 0033:0x4598e9 [ 76.123113][ T9030] Code: fd 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 76.142713][ T9030] RSP: 002b:00007f7910a9ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.151109][ T9030] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 [ 76.159055][ T9030] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000004 [ 76.167001][ T9030] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 76.174962][ T9030] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7910a9f6d4 [ 76.182919][ T9030] R13: 00000000004c77fb R14: 00000000004dd098 R15: 00000000ffffffff [ 76.190872][ T9030] Modules linked in: [ 76.194759][ T9030] CR2: 0000000000000000 [ 76.200833][ T9030] ---[ end trace a349e928cb3ddd73 ]--- [ 76.206610][ T9030] RIP: 0010:0x0 [ 76.210130][ T9030] Code: Bad RIP value. [ 76.214602][ T9030] RSP: 0018:ffff888095faf4d8 EFLAGS: 00010246 [ 76.220664][ T9030] RAX: dffffc0000000000 RBX: ffffffff884a25a0 RCX: ffffffff85b92086 [ 76.228696][ T9030] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88809f091000 [ 76.236696][ T9030] RBP: ffff888095faf5d0 R08: ffff888087cf4340 R09: ffff888095faf658 [ 76.244690][ T9030] R10: ffffed1012bf5ed9 R11: ffff888095faf6cf R12: ffff88809f091000 [ 76.252682][ T9030] R13: 0000000000000001 R14: ffff888095faf5a8 R15: ffffffff884a25a0 [ 76.260637][ T9030] FS: 00007f7910a9f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 76.269599][ T9030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.276198][ T9030] CR2: ffffffffffffffd6 CR3: 0000000097dc0000 CR4: 00000000001406e0 [ 76.284339][ T9030] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.292342][ T9030] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.300335][ T9030] Kernel panic - not syncing: Fatal exception [ 76.307795][ T9030] Kernel Offset: disabled [ 76.312119][ T9030] Rebooting in 86400 seconds..