[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.760775][ T26] audit: type=1800 audit(1567837572.742:25): pid=8817 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.805118][ T26] audit: type=1800 audit(1567837572.752:26): pid=8817 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.851188][ T26] audit: type=1800 audit(1567837572.752:27): pid=8817 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 '10.128.15.215' (ECDSA) to the list of known hosts. syzkaller login: [ 70.617253][ T8971] IPVS: ftp: loaded support on port[0] = 21 [ 70.673496][ T8971] chnl_net:caif_netlink_parms(): no params data found [ 70.700347][ T8971] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.708693][ T8971] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.716611][ T8971] device bridge_slave_0 entered promiscuous mode [ 70.724640][ T8971] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.731831][ T8971] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.739542][ T8971] device bridge_slave_1 entered promiscuous mode [ 70.756483][ T8971] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.767017][ T8971] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.785400][ T8971] team0: Port device team_slave_0 added [ 70.792517][ T8971] team0: Port device team_slave_1 added [ 70.857326][ T8971] device hsr_slave_0 entered promiscuous mode [ 70.905464][ T8971] device hsr_slave_1 entered promiscuous mode [ 70.973819][ T8971] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.981165][ T8971] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.989103][ T8971] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.996185][ T8971] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.028685][ T8971] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.041498][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.052296][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.060999][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.069075][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.081065][ T8971] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.097085][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.106745][ T3014] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.114037][ T3014] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.122323][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.131127][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.138379][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.152239][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.161515][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.173161][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.190515][ T8971] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.204540][ T8971] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.217300][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.226556][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 71.236203][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.256665][ T8971] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.293965][ T8971] kasan: CONFIG_KASAN_INLINE enabled [ 71.299821][ T8971] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 71.308212][ T8971] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 71.315200][ T8971] CPU: 1 PID: 8971 Comm: syz-executor800 Not tainted 5.3.0-rc7+ #0 [ 71.323472][ T8971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.333541][ T8971] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 71.339685][ T8971] 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 [ 71.359367][ T8971] RSP: 0018:ffff8880a75ef450 EFLAGS: 00010246 [ 71.365414][ T8971] RAX: dffffc0000000000 RBX: ffff888087486900 RCX: ffffffff8159b2aa [ 71.373514][ T8971] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888087486c68 [ 71.381721][ T8971] RBP: ffff8880a75ef468 R08: 0000000000000004 R09: ffffed1014ebde7d [ 71.389991][ T8971] R10: ffffed1014ebde7c R11: 0000000000000003 R12: 0000000000000000 [ 71.398006][ T8971] R13: 0000000000000000 R14: ffff888087486c60 R15: ffff888087486bc0 [ 71.406143][ T8971] FS: 00005555566ec880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.415766][ T8971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.422342][ T8971] CR2: 0000000020000610 CR3: 000000008f9d0000 CR4: 00000000001406e0 [ 71.430977][ T8971] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.439167][ T8971] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.447511][ T8971] Call Trace: [ 71.450968][ T8971] cbs_destroy+0x7d/0x2a0 [ 71.455428][ T8971] ? cbs_init+0x25d/0x450 [ 71.460041][ T8971] ? cbs_dequeue_soft+0x410/0x410 [ 71.465189][ T8971] qdisc_create+0xbc6/0x1210 [ 71.469775][ T8971] ? tc_get_qdisc+0xc10/0xc10 [ 71.474888][ T8971] ? __nla_parse+0x43/0x60 [ 71.479311][ T8971] tc_modify_qdisc+0x524/0x1c50 [ 71.484188][ T8971] ? qdisc_create+0x1210/0x1210 [ 71.489506][ T8971] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 71.496255][ T8971] ? qdisc_create+0x1210/0x1210 [ 71.501290][ T8971] rtnetlink_rcv_msg+0x463/0xb00 [ 71.506229][ T8971] ? rtnetlink_put_metrics+0x580/0x580 [ 71.511674][ T8971] ? netlink_deliver_tap+0x22d/0xbf0 [ 71.520137][ T8971] ? find_held_lock+0x35/0x130 [ 71.524933][ T8971] netlink_rcv_skb+0x177/0x450 [ 71.529853][ T8971] ? rtnetlink_put_metrics+0x580/0x580 [ 71.535646][ T8971] ? netlink_ack+0xb30/0xb30 [ 71.540225][ T8971] ? __kasan_check_read+0x11/0x20 [ 71.545262][ T8971] ? netlink_deliver_tap+0x254/0xbf0 [ 71.550858][ T8971] rtnetlink_rcv+0x1d/0x30 [ 71.555450][ T8971] netlink_unicast+0x531/0x710 [ 71.560219][ T8971] ? netlink_attachskb+0x7c0/0x7c0 [ 71.565337][ T8971] ? _copy_from_iter_full+0x25d/0x8a0 [ 71.570988][ T8971] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 71.576823][ T8971] ? __check_object_size+0x3d/0x437 [ 71.582044][ T8971] netlink_sendmsg+0x8a5/0xd60 [ 71.586922][ T8971] ? netlink_unicast+0x710/0x710 [ 71.591980][ T8971] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 71.597778][ T8971] ? apparmor_socket_sendmsg+0x2a/0x30 [ 71.603237][ T8971] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.609782][ T8971] ? security_socket_sendmsg+0x8d/0xc0 [ 71.615325][ T8971] ? netlink_unicast+0x710/0x710 [ 71.620264][ T8971] sock_sendmsg+0xd7/0x130 [ 71.624671][ T8971] ___sys_sendmsg+0x803/0x920 [ 71.629342][ T8971] ? copy_msghdr_from_user+0x440/0x440 [ 71.634806][ T8971] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 71.641165][ T8971] ? tomoyo_path_number_perm+0x263/0x520 [ 71.646794][ T8971] ? sock_ioctl+0x489/0x780 [ 71.651283][ T8971] ? dlci_ioctl_set+0x40/0x40 [ 71.655948][ T8971] ? __do_page_fault+0x56a/0xdd0 [ 71.660865][ T8971] ? dlci_ioctl_set+0x40/0x40 [ 71.665527][ T8971] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.671753][ T8971] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.677974][ T8971] ? __fget_light+0x1a9/0x230 [ 71.682648][ T8971] ? __fdget+0x1b/0x20 [ 71.686718][ T8971] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 71.692972][ T8971] __sys_sendmsg+0x105/0x1d0 [ 71.697803][ T8971] ? __sys_sendmsg_sock+0xd0/0xd0 [ 71.702985][ T8971] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 71.708440][ T8971] ? do_syscall_64+0x26/0x6a0 [ 71.713120][ T8971] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.719516][ T8971] ? do_syscall_64+0x26/0x6a0 [ 71.724191][ T8971] __x64_sys_sendmsg+0x78/0xb0 [ 71.729099][ T8971] do_syscall_64+0xfd/0x6a0 [ 71.733756][ T8971] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.739833][ T8971] RIP: 0033:0x441b59 [ 71.743919][ T8971] 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 [ 71.764151][ T8971] RSP: 002b:00007fff482fc9f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 71.772548][ T8971] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 71.780509][ T8971] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 71.788460][ T8971] RBP: 00007fff482fca10 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 71.796639][ T8971] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 71.804737][ T8971] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 71.812725][ T8971] Modules linked in: [ 71.816947][ T8971] ---[ end trace ef7cb5ef7f8253ae ]--- [ 71.822445][ T8971] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 71.828474][ T8971] 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 [ 71.848236][ T8971] RSP: 0018:ffff8880a75ef450 EFLAGS: 00010246 [ 71.854308][ T8971] RAX: dffffc0000000000 RBX: ffff888087486900 RCX: ffffffff8159b2aa [ 71.862463][ T8971] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888087486c68 [ 71.870655][ T8971] RBP: ffff8880a75ef468 R08: 0000000000000004 R09: ffffed1014ebde7d [ 71.878974][ T8971] R10: ffffed1014ebde7c R11: 0000000000000003 R12: 0000000000000000 [ 71.886990][ T8971] R13: 0000000000000000 R14: ffff888087486c60 R15: ffff888087486bc0 [ 71.894952][ T8971] FS: 00005555566ec880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.904054][ T8971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.910668][ T8971] CR2: 0000000020000610 CR3: 000000008f9d0000 CR4: 00000000001406e0 [ 71.918673][ T8971] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.926685][ T8971] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.934642][ T8971] Kernel panic - not syncing: Fatal exception [ 71.942552][ T8971] Kernel Offset: disabled [ 71.946908][ T8971] Rebooting in 86400 seconds..