[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 60.006227][ T26] audit: type=1800 audit(1567778896.231:25): pid=8792 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 60.050519][ T26] audit: type=1800 audit(1567778896.241:26): pid=8792 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 60.100679][ T26] audit: type=1800 audit(1567778896.241:27): pid=8792 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 '10.128.10.57' (ECDSA) to the list of known hosts. 2019/09/06 14:08:26 parsed 1 programs 2019/09/06 14:08:28 executed programs: 0 syzkaller login: [ 72.513851][ T8960] IPVS: ftp: loaded support on port[0] = 21 [ 72.579312][ T8960] chnl_net:caif_netlink_parms(): no params data found [ 72.608049][ T8960] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.616319][ T8960] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.624297][ T8960] device bridge_slave_0 entered promiscuous mode [ 72.632782][ T8960] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.640085][ T8960] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.648433][ T8960] device bridge_slave_1 entered promiscuous mode [ 72.666605][ T8960] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.677463][ T8960] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.696822][ T8960] team0: Port device team_slave_0 added [ 72.704177][ T8960] team0: Port device team_slave_1 added [ 72.763009][ T8960] device hsr_slave_0 entered promiscuous mode [ 72.800750][ T8960] device hsr_slave_1 entered promiscuous mode [ 72.868280][ T8960] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.875474][ T8960] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.883632][ T8960] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.890915][ T8960] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.926687][ T8960] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.939417][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.950231][ T3002] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.958923][ T3002] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.967312][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.979924][ T8960] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.001453][ T3505] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.011917][ T3505] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.018994][ T3505] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.043262][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.052474][ T8962] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.059542][ T8962] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.068527][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.078991][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.087616][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.096263][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.107113][ T8960] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.121957][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.129975][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.149032][ T8960] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.473067][ T9001] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. [ 73.502705][ T9005] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 73.510582][ T9005] #PF: supervisor instruction fetch in kernel mode [ 73.517213][ T9005] #PF: error_code(0x0010) - not-present page [ 73.523224][ T9005] PGD a7013067 P4D a7013067 PUD a8230067 PMD 0 [ 73.529592][ T9005] Oops: 0010 [#1] PREEMPT SMP KASAN [ 73.534838][ T9005] CPU: 0 PID: 9005 Comm: syz-executor.0 Not tainted 5.3.0-rc6-next-20190830 #75 [ 73.544073][ T9005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.554336][ T9005] RIP: 0010:0x0 [ 73.558033][ T9005] Code: Bad RIP value. [ 73.562223][ T9005] RSP: 0018:ffff888090a3f4d8 EFLAGS: 00010246 [ 73.568309][ T9005] RAX: dffffc0000000000 RBX: ffffffff884a25a0 RCX: ffffffff85b92086 [ 73.576276][ T9005] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808e83f000 [ 73.584269][ T9005] RBP: ffff888090a3f5d0 R08: ffff8880a4e0a040 R09: ffff888090a3f658 [ 73.592239][ T9005] R10: ffffed1012147ed9 R11: ffff888090a3f6cf R12: ffff88808e83f000 [ 73.600196][ T9005] R13: 0000000000000001 R14: ffff888090a3f5a8 R15: ffffffff884a25a0 [ 73.608167][ T9005] FS: 00007fe1b89d4700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 73.617098][ T9005] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.623671][ T9005] CR2: ffffffffffffffd6 CR3: 00000000a3b0f000 CR4: 00000000001406f0 [ 73.631636][ T9005] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.639593][ T9005] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.647550][ T9005] Call Trace: [ 73.650829][ T9005] tc_bind_tclass+0x13e/0x2f0 [ 73.655521][ T9005] ? qdisc_class_hash_init+0x110/0x110 [ 73.661000][ T9005] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 73.667283][ T9005] ? ns_capable_common+0x93/0x100 [ 73.672295][ T9005] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 73.677998][ T9005] ? qdisc_match_from_root+0x18a/0x280 [ 73.683629][ T9005] tc_ctl_tclass+0xadb/0xcd0 [ 73.688206][ T9005] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 73.694007][ T9005] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 73.699109][ T9005] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 73.705349][ T9005] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 73.711235][ T9005] rtnetlink_rcv_msg+0x463/0xb00 [ 73.716187][ T9005] ? rtnetlink_put_metrics+0x590/0x590 [ 73.721825][ T9005] ? netlink_deliver_tap+0x22d/0xbf0 [ 73.727108][ T9005] ? find_held_lock+0x35/0x130 [ 73.731865][ T9005] netlink_rcv_skb+0x177/0x450 [ 73.736619][ T9005] ? rtnetlink_put_metrics+0x590/0x590 [ 73.742065][ T9005] ? netlink_ack+0xb50/0xb50 [ 73.746642][ T9005] ? __kasan_check_read+0x11/0x20 [ 73.751666][ T9005] ? netlink_deliver_tap+0x254/0xbf0 [ 73.756970][ T9005] rtnetlink_rcv+0x1d/0x30 [ 73.761408][ T9005] netlink_unicast+0x531/0x710 [ 73.766162][ T9005] ? netlink_attachskb+0x7c0/0x7c0 [ 73.771259][ T9005] ? _copy_from_iter_full+0x25d/0x8c0 [ 73.776811][ T9005] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 73.782541][ T9005] ? __check_object_size+0x3d/0x437 [ 73.787739][ T9005] netlink_sendmsg+0x8a5/0xd60 [ 73.792497][ T9005] ? netlink_unicast+0x710/0x710 [ 73.797428][ T9005] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 73.803165][ T9005] ? apparmor_socket_sendmsg+0x2a/0x30 [ 73.808624][ T9005] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 73.815407][ T9005] ? security_socket_sendmsg+0x8d/0xc0 [ 73.820905][ T9005] ? netlink_unicast+0x710/0x710 [ 73.825868][ T9005] sock_sendmsg+0xd7/0x130 [ 73.830371][ T9005] ___sys_sendmsg+0x803/0x920 [ 73.835060][ T9005] ? copy_msghdr_from_user+0x440/0x440 [ 73.840565][ T9005] ? __kasan_check_read+0x11/0x20 [ 73.845647][ T9005] ? __fget+0x384/0x560 [ 73.849813][ T9005] ? ksys_dup3+0x3e0/0x3e0 [ 73.854235][ T9005] ? __fget_light+0x1a9/0x230 [ 73.859061][ T9005] ? __fdget+0x1b/0x20 [ 73.863238][ T9005] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 73.869663][ T9005] __sys_sendmsg+0x105/0x1d0 [ 73.874264][ T9005] ? __sys_sendmsg_sock+0xd0/0xd0 [ 73.879299][ T9005] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 73.884771][ T9005] ? do_syscall_64+0x26/0x760 [ 73.889441][ T9005] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.895504][ T9005] ? do_syscall_64+0x26/0x760 [ 73.900176][ T9005] __x64_sys_sendmsg+0x78/0xb0 [ 73.904948][ T9005] do_syscall_64+0xfa/0x760 [ 73.909505][ T9005] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.915389][ T9005] RIP: 0033:0x459879 [ 73.919297][ T9005] 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 [ 73.939172][ T9005] RSP: 002b:00007fe1b89d3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.947601][ T9005] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879 [ 73.955702][ T9005] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 73.963684][ T9005] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 73.971768][ T9005] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe1b89d46d4 [ 73.979839][ T9005] R13: 00000000004c77c2 R14: 00000000004dd018 R15: 00000000ffffffff [ 73.987822][ T9005] Modules linked in: [ 73.991711][ T9005] CR2: 0000000000000000 [ 73.998765][ T9005] ---[ end trace 2d105fb8b3f853be ]--- [ 74.004457][ T9005] RIP: 0010:0x0 [ 74.008119][ T9005] Code: Bad RIP value. [ 74.012307][ T9005] RSP: 0018:ffff888090a3f4d8 EFLAGS: 00010246 [ 74.018547][ T9005] RAX: dffffc0000000000 RBX: ffffffff884a25a0 RCX: ffffffff85b92086 [ 74.026992][ T9005] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808e83f000 [ 74.035027][ T9005] RBP: ffff888090a3f5d0 R08: ffff8880a4e0a040 R09: ffff888090a3f658 [ 74.043250][ T9005] R10: ffffed1012147ed9 R11: ffff888090a3f6cf R12: ffff88808e83f000 [ 74.051269][ T9005] R13: 0000000000000001 R14: ffff888090a3f5a8 R15: ffffffff884a25a0 [ 74.059440][ T9005] FS: 00007fe1b89d4700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 74.068436][ T9005] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.075448][ T9005] CR2: ffffffffffffffd6 CR3: 00000000a3b0f000 CR4: 00000000001406f0 [ 74.083809][ T9005] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.092127][ T9005] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.100108][ T9005] Kernel panic - not syncing: Fatal exception [ 74.107768][ T9005] Kernel Offset: disabled [ 74.112124][ T9005] Rebooting in 86400 seconds..