[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 59.131328][ T26] audit: type=1800 audit(1567855459.956:25): pid=8664 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 59.164367][ T26] audit: type=1800 audit(1567855459.956:26): pid=8664 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 59.205608][ T26] audit: type=1800 audit(1567855459.966:27): pid=8664 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 '10.128.0.117' (ECDSA) to the list of known hosts. 2019/09/07 11:24:28 parsed 1 programs 2019/09/07 11:24:30 executed programs: 0 syzkaller login: [ 69.281663][ T8833] IPVS: ftp: loaded support on port[0] = 21 [ 69.348062][ T8833] chnl_net:caif_netlink_parms(): no params data found [ 69.377439][ T8833] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.385967][ T8833] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.394485][ T8833] device bridge_slave_0 entered promiscuous mode [ 69.403480][ T8833] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.410687][ T8833] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.418448][ T8833] device bridge_slave_1 entered promiscuous mode [ 69.436986][ T8833] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.447862][ T8833] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.467334][ T8833] team0: Port device team_slave_0 added [ 69.475432][ T8833] team0: Port device team_slave_1 added [ 69.541602][ T8833] device hsr_slave_0 entered promiscuous mode [ 69.609236][ T8833] device hsr_slave_1 entered promiscuous mode [ 69.697785][ T8833] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.705315][ T8833] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.713452][ T8833] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.720577][ T8833] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.756857][ T8833] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.770260][ T8835] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.791593][ T8835] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.801989][ T8835] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.810696][ T8835] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.823467][ T8833] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.833974][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.843420][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.850547][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.863240][ T8835] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.872675][ T8835] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.879919][ T8835] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.897570][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.907460][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.919966][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.936053][ T8833] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 69.948440][ T8833] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.961116][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.970272][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.980640][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.997917][ T8833] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.227117][ T8863] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. [ 70.266315][ T8868] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 70.274164][ T8868] #PF: supervisor instruction fetch in kernel mode [ 70.280678][ T8868] #PF: error_code(0x0010) - not-present page [ 70.286736][ T8868] PGD 8bbd2067 P4D 8bbd2067 PUD a4a48067 PMD 0 [ 70.293141][ T8868] Oops: 0010 [#1] PREEMPT SMP KASAN [ 70.298336][ T8868] CPU: 1 PID: 8868 Comm: syz-executor.0 Not tainted 5.3.0-rc7+ #0 [ 70.306116][ T8868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.316169][ T8868] RIP: 0010:0x0 [ 70.319646][ T8868] Code: Bad RIP value. [ 70.323706][ T8868] RSP: 0018:ffff8880a01e74d8 EFLAGS: 00010246 [ 70.329756][ T8868] RAX: dffffc0000000000 RBX: ffffffff884a7760 RCX: ffffffff85b57066 [ 70.337713][ T8868] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a227e5c0 [ 70.345820][ T8868] RBP: ffff8880a01e75d0 R08: ffff88809ac9c500 R09: ffff8880a01e7658 [ 70.353786][ T8868] R10: ffffed101403ced9 R11: ffff8880a01e76cf R12: ffff8880a227e5c0 [ 70.361768][ T8868] R13: 0000000000000001 R14: ffff8880a01e75a8 R15: ffffffff884a7760 [ 70.369753][ T8868] FS: 00007f2db9705700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 70.378671][ T8868] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.385248][ T8868] CR2: ffffffffffffffd6 CR3: 000000009f120000 CR4: 00000000001406e0 [ 70.393232][ T8868] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.401219][ T8868] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.409182][ T8868] Call Trace: [ 70.412491][ T8868] tc_bind_tclass+0x13e/0x2f0 [ 70.417167][ T8868] ? qdisc_class_hash_init+0x110/0x110 [ 70.422638][ T8868] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.428895][ T8868] ? ns_capable_common+0x93/0x100 [ 70.433917][ T8868] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 70.439623][ T8868] ? qdisc_match_from_root+0x18a/0x280 [ 70.445065][ T8868] tc_ctl_tclass+0xadb/0xcd0 [ 70.449639][ T8868] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 70.455423][ T8868] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 70.460519][ T8868] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.466740][ T8868] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 70.472525][ T8868] rtnetlink_rcv_msg+0x463/0xb00 [ 70.477495][ T8868] ? rtnetlink_put_metrics+0x580/0x580 [ 70.482951][ T8868] ? netlink_deliver_tap+0x22d/0xbf0 [ 70.488223][ T8868] ? find_held_lock+0x35/0x130 [ 70.492971][ T8868] netlink_rcv_skb+0x177/0x450 [ 70.497728][ T8868] ? rtnetlink_put_metrics+0x580/0x580 [ 70.503167][ T8868] ? netlink_ack+0xb30/0xb30 [ 70.507738][ T8868] ? __kasan_check_read+0x11/0x20 [ 70.512745][ T8868] ? netlink_deliver_tap+0x254/0xbf0 [ 70.518013][ T8868] rtnetlink_rcv+0x1d/0x30 [ 70.522410][ T8868] netlink_unicast+0x531/0x710 [ 70.527154][ T8868] ? netlink_attachskb+0x7c0/0x7c0 [ 70.532250][ T8868] ? _copy_from_iter_full+0x25d/0x8a0 [ 70.537602][ T8868] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 70.543302][ T8868] ? __check_object_size+0x3d/0x437 [ 70.548483][ T8868] netlink_sendmsg+0x8a5/0xd60 [ 70.553267][ T8868] ? netlink_unicast+0x710/0x710 [ 70.558206][ T8868] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 70.563759][ T8868] ? apparmor_socket_sendmsg+0x2a/0x30 [ 70.569222][ T8868] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.575455][ T8868] ? security_socket_sendmsg+0x8d/0xc0 [ 70.580898][ T8868] ? netlink_unicast+0x710/0x710 [ 70.585821][ T8868] sock_sendmsg+0xd7/0x130 [ 70.590219][ T8868] ___sys_sendmsg+0x803/0x920 [ 70.594876][ T8868] ? copy_msghdr_from_user+0x440/0x440 [ 70.600319][ T8868] ? __kasan_check_read+0x11/0x20 [ 70.605367][ T8868] ? __fget+0x384/0x560 [ 70.609517][ T8868] ? ksys_dup3+0x3e0/0x3e0 [ 70.613922][ T8868] ? __fget_light+0x1a9/0x230 [ 70.618583][ T8868] ? __fdget+0x1b/0x20 [ 70.622636][ T8868] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.628872][ T8868] __sys_sendmsg+0x105/0x1d0 [ 70.633441][ T8868] ? __sys_sendmsg_sock+0xd0/0xd0 [ 70.638449][ T8868] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 70.643901][ T8868] ? do_syscall_64+0x26/0x6a0 [ 70.648602][ T8868] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.654695][ T8868] ? do_syscall_64+0x26/0x6a0 [ 70.659369][ T8868] __x64_sys_sendmsg+0x78/0xb0 [ 70.664121][ T8868] do_syscall_64+0xfd/0x6a0 [ 70.668607][ T8868] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.674476][ T8868] RIP: 0033:0x4598e9 [ 70.678385][ T8868] 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 [ 70.697982][ T8868] RSP: 002b:00007f2db9704c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.706413][ T8868] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 [ 70.714404][ T8868] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 70.722389][ T8868] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 70.730371][ T8868] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2db97056d4 [ 70.738337][ T8868] R13: 00000000004c77fb R14: 00000000004dd098 R15: 00000000ffffffff [ 70.746295][ T8868] Modules linked in: [ 70.750172][ T8868] CR2: 0000000000000000 [ 70.757506][ T8868] ---[ end trace 4716ce84eb937f75 ]--- [ 70.763174][ T8868] RIP: 0010:0x0 [ 70.766760][ T8868] Code: Bad RIP value. [ 70.770997][ T8868] RSP: 0018:ffff8880a01e74d8 EFLAGS: 00010246 [ 70.777272][ T8868] RAX: dffffc0000000000 RBX: ffffffff884a7760 RCX: ffffffff85b57066 [ 70.785445][ T8868] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a227e5c0 [ 70.793604][ T8868] RBP: ffff8880a01e75d0 R08: ffff88809ac9c500 R09: ffff8880a01e7658 [ 70.802064][ T8868] R10: ffffed101403ced9 R11: ffff8880a01e76cf R12: ffff8880a227e5c0 [ 70.810226][ T8868] R13: 0000000000000001 R14: ffff8880a01e75a8 R15: ffffffff884a7760 [ 70.818206][ T8868] FS: 00007f2db9705700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 70.827189][ T8868] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.833817][ T8868] CR2: ffffffffffffffd6 CR3: 000000009f120000 CR4: 00000000001406e0 [ 70.841820][ T8868] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.849823][ T8868] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.857790][ T8868] Kernel panic - not syncing: Fatal exception [ 70.865217][ T8868] Kernel Offset: disabled [ 70.869559][ T8868] Rebooting in 86400 seconds..