[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 57.705231][ T26] audit: type=1800 audit(1567835878.161:25): pid=8530 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 57.748902][ T26] audit: type=1800 audit(1567835878.161:26): pid=8530 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 57.779772][ T26] audit: type=1800 audit(1567835878.161:27): pid=8530 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.180' (ECDSA) to the list of known hosts. syzkaller login: [ 81.237793][ T8683] IPVS: ftp: loaded support on port[0] = 21 [ 81.293953][ T8683] chnl_net:caif_netlink_parms(): no params data found [ 81.321781][ T8683] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.329012][ T8683] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.336873][ T8683] device bridge_slave_0 entered promiscuous mode [ 81.345563][ T8683] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.352714][ T8683] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.360794][ T8683] device bridge_slave_1 entered promiscuous mode [ 81.377737][ T8683] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.388485][ T8683] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.407069][ T8683] team0: Port device team_slave_0 added [ 81.414413][ T8683] team0: Port device team_slave_1 added [ 81.480963][ T8683] device hsr_slave_0 entered promiscuous mode [ 81.529610][ T8683] device hsr_slave_1 entered promiscuous mode [ 81.597323][ T8683] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.604516][ T8683] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.612263][ T8683] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.619383][ T8683] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.653098][ T8683] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.664359][ T3517] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.684383][ T3517] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.692902][ T3517] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.702583][ T3517] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 81.713680][ T8683] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.724152][ T2822] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.732731][ T2822] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.739835][ T2822] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.762625][ T2822] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.772483][ T2822] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.779586][ T2822] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.787585][ T2822] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.796560][ T2822] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.804961][ T2822] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.813956][ T2822] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.825113][ T8683] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 81.836766][ T8683] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.846079][ T8685] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 81.864236][ T8683] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.903056][ T8683] kasan: CONFIG_KASAN_INLINE enabled [ 81.908446][ T8683] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 81.917031][ T8683] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 81.923981][ T8683] CPU: 1 PID: 8683 Comm: syz-executor163 Not tainted 5.3.0-rc7+ #0 [ 81.931846][ T8683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.941900][ T8683] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 81.947889][ T8683] 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 [ 81.967657][ T8683] RSP: 0018:ffff888087d47450 EFLAGS: 00010246 [ 81.973702][ T8683] RAX: dffffc0000000000 RBX: ffff8880a77aa4c0 RCX: ffffffff8159b2aa [ 81.981673][ T8683] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880a77aa828 [ 81.990050][ T8683] RBP: ffff888087d47468 R08: 0000000000000004 R09: ffffed1010fa8e7d [ 81.998000][ T8683] R10: ffffed1010fa8e7c R11: 0000000000000003 R12: 0000000000000000 [ 82.005961][ T8683] R13: 0000000000000000 R14: ffff8880a77aa820 R15: ffff8880a77aa780 [ 82.013918][ T8683] FS: 0000555556529880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.022852][ T8683] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.029413][ T8683] CR2: 0000000020000610 CR3: 000000009c0ee000 CR4: 00000000001406e0 [ 82.037376][ T8683] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.045331][ T8683] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.053290][ T8683] Call Trace: [ 82.056567][ T8683] cbs_destroy+0x7d/0x2a0 [ 82.060870][ T8683] ? cbs_init+0x25d/0x450 [ 82.065171][ T8683] ? cbs_dequeue_soft+0x410/0x410 [ 82.070176][ T8683] qdisc_create+0xbc6/0x1210 [ 82.074745][ T8683] ? tc_get_qdisc+0xc10/0xc10 [ 82.079400][ T8683] ? __nla_parse+0x43/0x60 [ 82.083791][ T8683] tc_modify_qdisc+0x524/0x1c50 [ 82.089043][ T8683] ? qdisc_create+0x1210/0x1210 [ 82.093881][ T8683] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.100367][ T8683] ? qdisc_create+0x1210/0x1210 [ 82.105212][ T8683] rtnetlink_rcv_msg+0x463/0xb00 [ 82.110131][ T8683] ? rtnetlink_put_metrics+0x580/0x580 [ 82.116088][ T8683] ? netlink_deliver_tap+0x22d/0xbf0 [ 82.121351][ T8683] ? find_held_lock+0x35/0x130 [ 82.126096][ T8683] netlink_rcv_skb+0x177/0x450 [ 82.130856][ T8683] ? rtnetlink_put_metrics+0x580/0x580 [ 82.136301][ T8683] ? netlink_ack+0xb30/0xb30 [ 82.140873][ T8683] ? __kasan_check_read+0x11/0x20 [ 82.145879][ T8683] ? netlink_deliver_tap+0x254/0xbf0 [ 82.151143][ T8683] rtnetlink_rcv+0x1d/0x30 [ 82.155540][ T8683] netlink_unicast+0x531/0x710 [ 82.160305][ T8683] ? netlink_attachskb+0x7c0/0x7c0 [ 82.165413][ T8683] ? _copy_from_iter_full+0x25d/0x8a0 [ 82.170780][ T8683] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 82.176593][ T8683] ? __check_object_size+0x3d/0x437 [ 82.181782][ T8683] netlink_sendmsg+0x8a5/0xd60 [ 82.186545][ T8683] ? netlink_unicast+0x710/0x710 [ 82.191467][ T8683] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 82.196994][ T8683] ? apparmor_socket_sendmsg+0x2a/0x30 [ 82.202449][ T8683] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.208672][ T8683] ? security_socket_sendmsg+0x8d/0xc0 [ 82.214124][ T8683] ? netlink_unicast+0x710/0x710 [ 82.219052][ T8683] sock_sendmsg+0xd7/0x130 [ 82.223448][ T8683] ___sys_sendmsg+0x803/0x920 [ 82.228102][ T8683] ? copy_msghdr_from_user+0x440/0x440 [ 82.233551][ T8683] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 82.239783][ T8683] ? tomoyo_path_number_perm+0x263/0x520 [ 82.245400][ T8683] ? sock_ioctl+0x489/0x780 [ 82.249879][ T8683] ? dlci_ioctl_set+0x40/0x40 [ 82.254551][ T8683] ? __do_page_fault+0x56a/0xdd0 [ 82.259477][ T8683] ? dlci_ioctl_set+0x40/0x40 [ 82.264131][ T8683] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.270347][ T8683] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.276565][ T8683] ? __fget_light+0x1a9/0x230 [ 82.281229][ T8683] ? __fdget+0x1b/0x20 [ 82.285272][ T8683] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.291501][ T8683] __sys_sendmsg+0x105/0x1d0 [ 82.296067][ T8683] ? __sys_sendmsg_sock+0xd0/0xd0 [ 82.301071][ T8683] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 82.306505][ T8683] ? do_syscall_64+0x26/0x6a0 [ 82.311175][ T8683] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.317213][ T8683] ? do_syscall_64+0x26/0x6a0 [ 82.321864][ T8683] __x64_sys_sendmsg+0x78/0xb0 [ 82.326605][ T8683] do_syscall_64+0xfd/0x6a0 [ 82.331087][ T8683] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.336952][ T8683] RIP: 0033:0x441b59 [ 82.340823][ T8683] 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 [ 82.360399][ T8683] RSP: 002b:00007fff8c67b7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.368783][ T8683] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 82.376735][ T8683] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 82.384787][ T8683] RBP: 00007fff8c67b800 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 82.392733][ T8683] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 82.400679][ T8683] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 82.408629][ T8683] Modules linked in: [ 82.412595][ T8683] ---[ end trace 6a87fc7a44b1e73d ]--- [ 82.418053][ T8683] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 82.424083][ T8683] 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 [ 82.443727][ T8683] RSP: 0018:ffff888087d47450 EFLAGS: 00010246 [ 82.449803][ T8683] RAX: dffffc0000000000 RBX: ffff8880a77aa4c0 RCX: ffffffff8159b2aa [ 82.457774][ T8683] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880a77aa828 [ 82.465755][ T8683] RBP: ffff888087d47468 R08: 0000000000000004 R09: ffffed1010fa8e7d [ 82.473731][ T8683] R10: ffffed1010fa8e7c R11: 0000000000000003 R12: 0000000000000000 [ 82.481705][ T8683] R13: 0000000000000000 R14: ffff8880a77aa820 R15: ffff8880a77aa780 [ 82.489684][ T8683] FS: 0000555556529880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.498595][ T8683] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.505266][ T8683] CR2: 0000000020000610 CR3: 000000009c0ee000 CR4: 00000000001406e0 [ 82.513260][ T8683] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.521246][ T8683] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.529244][ T8683] Kernel panic - not syncing: Fatal exception [ 82.536715][ T8683] Kernel Offset: disabled [ 82.541045][ T8683] Rebooting in 86400 seconds..