[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.067691][ T26] audit: type=1800 audit(1567878449.994:25): pid=8784 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.113371][ T26] audit: type=1800 audit(1567878449.994:26): pid=8784 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.155254][ T26] audit: type=1800 audit(1567878449.994:27): pid=8784 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 '10.128.1.37' (ECDSA) to the list of known hosts. syzkaller login: [ 87.797465][ T8940] IPVS: ftp: loaded support on port[0] = 21 [ 87.855443][ T8940] chnl_net:caif_netlink_parms(): no params data found [ 87.882957][ T8940] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.891335][ T8940] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.899477][ T8940] device bridge_slave_0 entered promiscuous mode [ 87.908361][ T8940] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.915634][ T8940] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.923331][ T8940] device bridge_slave_1 entered promiscuous mode [ 87.942395][ T8940] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.953195][ T8940] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.973089][ T8940] team0: Port device team_slave_0 added [ 87.980417][ T8940] team0: Port device team_slave_1 added [ 88.037850][ T8940] device hsr_slave_0 entered promiscuous mode [ 88.105329][ T8940] device hsr_slave_1 entered promiscuous mode [ 88.173292][ T8940] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.180509][ T8940] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.188587][ T8940] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.195705][ T8940] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.232635][ T8940] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.245541][ T3565] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.256200][ T3565] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.275809][ T3565] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.285847][ T3565] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 88.298168][ T8940] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.309576][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.318073][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.325319][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.336849][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.346254][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.353303][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.374744][ T8940] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 88.386982][ T8940] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 88.400620][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.409453][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.418315][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.427617][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 88.436252][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 88.443927][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 88.462248][ T8940] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.504356][ T8940] kasan: CONFIG_KASAN_INLINE enabled [ 88.510178][ T8940] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 88.518462][ T8940] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 88.525395][ T8940] CPU: 0 PID: 8940 Comm: syz-executor284 Not tainted 5.3.0-rc6-next-20190830 #75 [ 88.534570][ T8940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.544724][ T8940] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 88.550792][ T8940] Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d [ 88.570381][ T8940] RSP: 0018:ffff8880977af450 EFLAGS: 00010246 [ 88.576445][ T8940] RAX: dffffc0000000000 RBX: ffff88808e459000 RCX: ffffffff81597aca [ 88.584407][ T8940] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88808e459368 [ 88.592479][ T8940] RBP: ffff8880977af468 R08: 0000000000000004 R09: ffffed1012ef5e7d [ 88.600439][ T8940] R10: ffffed1012ef5e7c R11: 0000000000000003 R12: 0000000000000000 [ 88.608405][ T8940] R13: 0000000000000000 R14: ffff88808e459360 R15: ffff88808e4592c0 [ 88.616357][ T8940] FS: 0000555556244880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 88.625269][ T8940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.631842][ T8940] CR2: 0000000020000610 CR3: 00000000a0485000 CR4: 00000000001406f0 [ 88.639793][ T8940] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.647887][ T8940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.655852][ T8940] Call Trace: [ 88.659154][ T8940] cbs_destroy+0x7d/0x2a0 [ 88.663460][ T8940] ? cbs_init+0x25d/0x450 [ 88.667773][ T8940] ? cbs_dequeue_soft+0x4b0/0x4b0 [ 88.672776][ T8940] qdisc_create+0xbc6/0x1210 [ 88.677347][ T8940] ? tc_get_qdisc+0xc10/0xc10 [ 88.682786][ T8940] ? __nla_parse+0x43/0x60 [ 88.687217][ T8940] tc_modify_qdisc+0x524/0x1c50 [ 88.692069][ T8940] ? qdisc_create+0x1210/0x1210 [ 88.696915][ T8940] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 88.703134][ T8940] ? qdisc_create+0x1210/0x1210 [ 88.707997][ T8940] rtnetlink_rcv_msg+0x463/0xb00 [ 88.712987][ T8940] ? rtnetlink_put_metrics+0x590/0x590 [ 88.718455][ T8940] ? netlink_deliver_tap+0x22d/0xbf0 [ 88.723728][ T8940] ? find_held_lock+0x35/0x130 [ 88.728479][ T8940] netlink_rcv_skb+0x177/0x450 [ 88.733397][ T8940] ? rtnetlink_put_metrics+0x590/0x590 [ 88.738834][ T8940] ? netlink_ack+0xb50/0xb50 [ 88.743414][ T8940] ? __kasan_check_read+0x11/0x20 [ 88.748434][ T8940] ? netlink_deliver_tap+0x254/0xbf0 [ 88.753709][ T8940] rtnetlink_rcv+0x1d/0x30 [ 88.758545][ T8940] netlink_unicast+0x531/0x710 [ 88.763293][ T8940] ? netlink_attachskb+0x7c0/0x7c0 [ 88.768388][ T8940] ? _copy_from_iter_full+0x25d/0x8c0 [ 88.773745][ T8940] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 88.779464][ T8940] ? __check_object_size+0x3d/0x437 [ 88.784667][ T8940] netlink_sendmsg+0x8a5/0xd60 [ 88.789415][ T8940] ? netlink_unicast+0x710/0x710 [ 88.794328][ T8940] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 88.799883][ T8940] ? apparmor_socket_sendmsg+0x2a/0x30 [ 88.805338][ T8940] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.811572][ T8940] ? security_socket_sendmsg+0x8d/0xc0 [ 88.817113][ T8940] ? netlink_unicast+0x710/0x710 [ 88.822033][ T8940] sock_sendmsg+0xd7/0x130 [ 88.826545][ T8940] ___sys_sendmsg+0x803/0x920 [ 88.831318][ T8940] ? copy_msghdr_from_user+0x440/0x440 [ 88.836782][ T8940] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 88.843007][ T8940] ? tomoyo_path_number_perm+0x263/0x520 [ 88.848648][ T8940] ? sock_ioctl+0x489/0x780 [ 88.853141][ T8940] ? dlci_ioctl_set+0x40/0x40 [ 88.857813][ T8940] ? __do_page_fault+0x56a/0xdd0 [ 88.862738][ T8940] ? dlci_ioctl_set+0x40/0x40 [ 88.867403][ T8940] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.873624][ T8940] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.879855][ T8940] ? __fget_light+0x1a9/0x230 [ 88.884521][ T8940] ? __fdget+0x1b/0x20 [ 88.888582][ T8940] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 88.894802][ T8940] __sys_sendmsg+0x105/0x1d0 [ 88.899382][ T8940] ? __sys_sendmsg_sock+0xd0/0xd0 [ 88.904489][ T8940] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 88.909934][ T8940] ? do_syscall_64+0x26/0x760 [ 88.914592][ T8940] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.920646][ T8940] ? do_syscall_64+0x26/0x760 [ 88.925314][ T8940] __x64_sys_sendmsg+0x78/0xb0 [ 88.930147][ T8940] do_syscall_64+0xfa/0x760 [ 88.934636][ T8940] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.940522][ T8940] RIP: 0033:0x441b59 [ 88.944484][ T8940] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 88.964193][ T8940] RSP: 002b:00007ffc142a67d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.972605][ T8940] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 88.980585][ T8940] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 88.988655][ T8940] RBP: 00007ffc142a67f0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 88.996613][ T8940] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 89.004567][ T8940] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 89.012539][ T8940] Modules linked in: [ 89.016582][ T8940] ---[ end trace 0a88ee0791497238 ]--- [ 89.022087][ T8940] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 89.028230][ T8940] Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d [ 89.048066][ T8940] RSP: 0018:ffff8880977af450 EFLAGS: 00010246 [ 89.054204][ T8940] RAX: dffffc0000000000 RBX: ffff88808e459000 RCX: ffffffff81597aca [ 89.062208][ T8940] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88808e459368 [ 89.070574][ T8940] RBP: ffff8880977af468 R08: 0000000000000004 R09: ffffed1012ef5e7d [ 89.078708][ T8940] R10: ffffed1012ef5e7c R11: 0000000000000003 R12: 0000000000000000 [ 89.086813][ T8940] R13: 0000000000000000 R14: ffff88808e459360 R15: ffff88808e4592c0 [ 89.094954][ T8940] FS: 0000555556244880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 89.104007][ T8940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.110917][ T8940] CR2: 0000000020000610 CR3: 00000000a0485000 CR4: 00000000001406f0 [ 89.119809][ T8940] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.128000][ T8940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.136197][ T8940] Kernel panic - not syncing: Fatal exception [ 89.143855][ T8940] Kernel Offset: disabled [ 89.148273][ T8940] Rebooting in 86400 seconds..