[ 70.646349][ T26] audit: type=1800 audit(1567859835.016:27): pid=10034 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 70.692329][ T26] audit: type=1800 audit(1567859835.016:28): pid=10034 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. [ 71.166903][ T26] audit: type=1800 audit(1567859835.606:29): pid=10034 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 [ 71.187244][ T26] audit: type=1800 audit(1567859835.606:30): pid=10034 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 '10.128.0.62' (ECDSA) to the list of known hosts. 2019/09/07 12:37:26 parsed 1 programs 2019/09/07 12:37:28 executed programs: 0 syzkaller login: [ 83.827596][T10200] IPVS: ftp: loaded support on port[0] = 21 [ 83.894204][T10200] chnl_net:caif_netlink_parms(): no params data found [ 83.919180][T10200] bridge0: port 1(bridge_slave_0) entered blocking state [ 83.926530][T10200] bridge0: port 1(bridge_slave_0) entered disabled state [ 83.934512][T10200] device bridge_slave_0 entered promiscuous mode [ 83.942705][T10200] bridge0: port 2(bridge_slave_1) entered blocking state [ 83.951382][T10200] bridge0: port 2(bridge_slave_1) entered disabled state [ 83.960277][T10200] device bridge_slave_1 entered promiscuous mode [ 83.976277][T10200] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 83.987615][T10200] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 84.009202][T10200] team0: Port device team_slave_0 added [ 84.016409][T10200] team0: Port device team_slave_1 added [ 84.075766][T10200] device hsr_slave_0 entered promiscuous mode [ 84.114292][T10200] device hsr_slave_1 entered promiscuous mode [ 84.159764][T10200] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.167029][T10200] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.174498][T10200] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.181686][T10200] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.206945][T10200] 8021q: adding VLAN 0 to HW filter on device bond0 [ 84.217651][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 84.226705][T10202] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.234833][T10202] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.242456][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 84.254152][T10200] 8021q: adding VLAN 0 to HW filter on device team0 [ 84.265621][ T2966] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 84.274651][ T2966] bridge0: port 1(bridge_slave_0) entered blocking state [ 84.281755][ T2966] bridge0: port 1(bridge_slave_0) entered forwarding state [ 84.289447][ T2966] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 84.298367][ T2966] bridge0: port 2(bridge_slave_1) entered blocking state [ 84.305680][ T2966] bridge0: port 2(bridge_slave_1) entered forwarding state [ 84.323188][T10200] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 84.333733][T10200] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 84.346547][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 84.355694][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 84.364853][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 84.373243][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 84.381967][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 84.389616][T10202] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 84.405226][T10200] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 84.640503][T10242] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 84.648457][T10242] #PF: supervisor instruction fetch in kernel mode [ 84.654974][T10242] #PF: error_code(0x0010) - not-present page [ 84.661065][T10242] PGD 8efcb067 P4D 8efcb067 PUD 8d530067 PMD 0 [ 84.667419][T10242] Oops: 0010 [#1] PREEMPT SMP KASAN [ 84.672827][T10242] CPU: 0 PID: 10242 Comm: syz-executor.0 Not tainted 5.3.0-rc7+ #0 [ 84.680733][T10242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.691312][T10242] RIP: 0010:0x0 [ 84.694768][T10242] Code: Bad RIP value. [ 84.698976][T10242] RSP: 0018:ffff888082e6f4d8 EFLAGS: 00010246 [ 84.705042][T10242] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 84.713018][T10242] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a8014500 [ 84.721270][T10242] RBP: ffff888082e6f5d0 R08: ffff88808b6c0680 R09: ffff888082e6f658 [ 84.729264][T10242] R10: ffffed10105cded9 R11: ffff888082e6f6cf R12: ffff8880a8014500 [ 84.737299][T10242] R13: 0000000000000001 R14: ffff888082e6f5a8 R15: ffffffff882a51a0 [ 84.745279][T10242] FS: 00007f4241921700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 84.754217][T10242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.760831][T10242] CR2: ffffffffffffffd6 CR3: 0000000089f9f000 CR4: 00000000001406f0 [ 84.768806][T10242] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.776788][T10242] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.784755][T10242] Call Trace: [ 84.788039][T10242] tc_bind_tclass+0x13e/0x2f0 [ 84.793118][T10242] ? qdisc_class_hash_init+0x110/0x110 [ 84.798599][T10242] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 84.805119][T10242] ? ns_capable_common+0x93/0x100 [ 84.810285][T10242] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 84.816139][T10242] ? qdisc_match_from_root+0x18a/0x280 [ 84.821611][T10242] tc_ctl_tclass+0xadb/0xcd0 [ 84.826372][T10242] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 84.832351][T10242] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 84.837486][T10242] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 84.842701][T10242] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 84.848935][T10242] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 84.854753][T10242] rtnetlink_rcv_msg+0x463/0xb00 [ 84.859717][T10242] ? rtnetlink_put_metrics+0x580/0x580 [ 84.865306][T10242] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 84.870737][T10242] ? __copy_skb_header+0x250/0x550 [ 84.875867][T10242] netlink_rcv_skb+0x177/0x450 [ 84.880754][T10242] ? rtnetlink_put_metrics+0x580/0x580 [ 84.886291][T10242] ? netlink_ack+0xb30/0xb30 [ 84.890873][T10242] ? netlink_deliver_tap+0x254/0xbf0 [ 84.896253][T10242] rtnetlink_rcv+0x1d/0x30 [ 84.900669][T10242] netlink_unicast+0x531/0x710 [ 84.905421][T10242] ? netlink_attachskb+0x7c0/0x7c0 [ 84.910519][T10242] ? _copy_from_iter_full+0x25d/0x8a0 [ 84.915874][T10242] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 84.921571][T10242] ? __check_object_size+0x3d/0x437 [ 84.926747][T10242] netlink_sendmsg+0x8a5/0xd60 [ 84.931504][T10242] ? netlink_unicast+0x710/0x710 [ 84.936524][T10242] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 84.942053][T10242] ? apparmor_socket_sendmsg+0x2a/0x30 [ 84.947666][T10242] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 84.954060][T10242] ? security_socket_sendmsg+0x8d/0xc0 [ 84.959560][T10242] ? netlink_unicast+0x710/0x710 [ 84.964517][T10242] sock_sendmsg+0xd7/0x130 [ 84.969147][T10242] ___sys_sendmsg+0x803/0x920 [ 84.973957][T10242] ? copy_msghdr_from_user+0x440/0x440 [ 84.979446][T10242] ? __fget+0xa3/0x560 [ 84.983499][T10242] ? __fget+0x384/0x560 [ 84.987792][T10242] ? ksys_dup3+0x3e0/0x3e0 [ 84.992208][T10242] ? __might_fault+0xfb/0x1e0 [ 84.996894][T10242] ? __fget_light+0x1a9/0x230 [ 85.001601][T10242] ? __fdget+0x1b/0x20 [ 85.005658][T10242] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 85.011889][T10242] __sys_sendmsg+0x105/0x1d0 [ 85.016476][T10242] ? __sys_sendmsg_sock+0xd0/0xd0 [ 85.021505][T10242] ? __x64_sys_clock_gettime+0x16d/0x240 [ 85.027120][T10242] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 85.033166][T10242] __x64_sys_sendmsg+0x78/0xb0 [ 85.037913][T10242] do_syscall_64+0xfd/0x6a0 [ 85.042397][T10242] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.048267][T10242] RIP: 0033:0x4598e9 [ 85.052141][T10242] 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 [ 85.071738][T10242] RSP: 002b:00007f4241920c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.080134][T10242] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 [ 85.088110][T10242] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 85.096192][T10242] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 85.104212][T10242] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f42419216d4 [ 85.112170][T10242] R13: 00000000004c77fb R14: 00000000004dd098 R15: 00000000ffffffff [ 85.120147][T10242] Modules linked in: [ 85.124037][T10242] CR2: 0000000000000000 [ 85.130473][T10242] ---[ end trace 8c291636037238d4 ]--- [ 85.136046][T10242] RIP: 0010:0x0 [ 85.139502][T10242] Code: Bad RIP value. [ 85.143548][T10242] RSP: 0018:ffff888082e6f4d8 EFLAGS: 00010246 [ 85.150168][T10242] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 85.158231][T10242] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a8014500 [ 85.166383][T10242] RBP: ffff888082e6f5d0 R08: ffff88808b6c0680 R09: ffff888082e6f658 [ 85.174391][T10242] R10: ffffed10105cded9 R11: ffff888082e6f6cf R12: ffff8880a8014500 [ 85.182472][T10242] R13: 0000000000000001 R14: ffff888082e6f5a8 R15: ffffffff882a51a0 [ 85.190614][T10242] FS: 00007f4241921700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 85.199696][T10242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.206331][T10242] CR2: ffffffffffffffd6 CR3: 0000000089f9f000 CR4: 00000000001406f0 [ 85.214455][T10242] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.222427][T10242] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.230483][T10242] Kernel panic - not syncing: Fatal exception [ 85.237931][T10242] Kernel Offset: disabled [ 85.242312][T10242] Rebooting in 86400 seconds..