[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 65.663228][ T23] audit: type=1800 audit(1567845449.351:25): pid=8716 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 65.707335][ T23] audit: type=1800 audit(1567845449.361:26): pid=8716 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 65.757921][ T23] audit: type=1800 audit(1567845449.361:27): pid=8716 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 '10.128.0.185' (ECDSA) to the list of known hosts. syzkaller login: [ 77.822547][ T8869] IPVS: ftp: loaded support on port[0] = 21 [ 77.881194][ T8869] chnl_net:caif_netlink_parms(): no params data found [ 77.912003][ T8869] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.920127][ T8869] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.928253][ T8869] device bridge_slave_0 entered promiscuous mode [ 77.936423][ T8869] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.943952][ T8869] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.951648][ T8869] device bridge_slave_1 entered promiscuous mode [ 77.968453][ T8869] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.978883][ T8869] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.997374][ T8869] team0: Port device team_slave_0 added [ 78.004144][ T8869] team0: Port device team_slave_1 added [ 78.069706][ T8869] device hsr_slave_0 entered promiscuous mode [ 78.117371][ T8869] device hsr_slave_1 entered promiscuous mode [ 78.175248][ T8869] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.182873][ T8869] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.190739][ T8869] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.197850][ T8869] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.230745][ T8869] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.245118][ T3519] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.255813][ T3519] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.264250][ T3519] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.272183][ T3519] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.284179][ T8869] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.294952][ T98] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.303705][ T98] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.310824][ T98] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.328463][ T3519] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.338020][ T3519] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.345082][ T3519] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.353359][ T3519] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.362200][ T3519] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.375924][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.385044][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.396456][ T8869] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.409771][ T8869] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.419053][ T8871] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 78.438232][ T8869] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.475385][ T8869] kasan: CONFIG_KASAN_INLINE enabled [ 78.480827][ T8869] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 78.489251][ T8869] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 78.496466][ T8869] CPU: 1 PID: 8869 Comm: syz-executor504 Not tainted 5.3.0-rc7+ #0 [ 78.504763][ T8869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.514899][ T8869] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 78.520920][ T8869] 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 [ 78.540610][ T8869] RSP: 0018:ffff888097e9f450 EFLAGS: 00010246 [ 78.546755][ T8869] RAX: dffffc0000000000 RBX: ffff88808264cdc0 RCX: ffffffff8159b2aa [ 78.554784][ T8869] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88808264d128 [ 78.562764][ T8869] RBP: ffff888097e9f468 R08: 0000000000000004 R09: ffffed1012fd3e7d [ 78.570947][ T8869] R10: ffffed1012fd3e7c R11: 0000000000000003 R12: 0000000000000000 [ 78.579156][ T8869] R13: 0000000000000000 R14: ffff88808264d120 R15: ffff88808264d080 [ 78.587112][ T8869] FS: 0000555555fd1880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 78.596081][ T8869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.602746][ T8869] CR2: 0000000020000610 CR3: 000000009be0b000 CR4: 00000000001406e0 [ 78.610708][ T8869] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.618663][ T8869] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.626852][ T8869] Call Trace: [ 78.630241][ T8869] cbs_destroy+0x7d/0x2a0 [ 78.635079][ T8869] ? cbs_init+0x25d/0x450 [ 78.639473][ T8869] ? cbs_dequeue_soft+0x410/0x410 [ 78.644480][ T8869] qdisc_create+0xbc6/0x1210 [ 78.649062][ T8869] ? tc_get_qdisc+0xc10/0xc10 [ 78.653725][ T8869] ? __nla_parse+0x43/0x60 [ 78.658121][ T8869] tc_modify_qdisc+0x524/0x1c50 [ 78.662951][ T8869] ? qdisc_create+0x1210/0x1210 [ 78.667790][ T8869] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 78.674007][ T8869] ? qdisc_create+0x1210/0x1210 [ 78.678831][ T8869] rtnetlink_rcv_msg+0x463/0xb00 [ 78.683745][ T8869] ? rtnetlink_put_metrics+0x580/0x580 [ 78.689189][ T8869] ? netlink_deliver_tap+0x22d/0xbf0 [ 78.694453][ T8869] ? find_held_lock+0x35/0x130 [ 78.699223][ T8869] netlink_rcv_skb+0x177/0x450 [ 78.703982][ T8869] ? rtnetlink_put_metrics+0x580/0x580 [ 78.709425][ T8869] ? netlink_ack+0xb30/0xb30 [ 78.714350][ T8869] ? __kasan_check_read+0x11/0x20 [ 78.719350][ T8869] ? netlink_deliver_tap+0x254/0xbf0 [ 78.724626][ T8869] rtnetlink_rcv+0x1d/0x30 [ 78.729018][ T8869] netlink_unicast+0x531/0x710 [ 78.733781][ T8869] ? netlink_attachskb+0x7c0/0x7c0 [ 78.739395][ T8869] ? _copy_from_iter_full+0x25d/0x8a0 [ 78.745769][ T8869] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 78.751477][ T8869] ? __check_object_size+0x3d/0x437 [ 78.756663][ T8869] netlink_sendmsg+0x8a5/0xd60 [ 78.761408][ T8869] ? netlink_unicast+0x710/0x710 [ 78.766337][ T8869] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 78.771861][ T8869] ? apparmor_socket_sendmsg+0x2a/0x30 [ 78.777336][ T8869] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.783647][ T8869] ? security_socket_sendmsg+0x8d/0xc0 [ 78.789102][ T8869] ? netlink_unicast+0x710/0x710 [ 78.794015][ T8869] sock_sendmsg+0xd7/0x130 [ 78.798470][ T8869] ___sys_sendmsg+0x803/0x920 [ 78.803146][ T8869] ? copy_msghdr_from_user+0x440/0x440 [ 78.808593][ T8869] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 78.815132][ T8869] ? tomoyo_path_number_perm+0x263/0x520 [ 78.820740][ T8869] ? sock_ioctl+0x489/0x780 [ 78.825222][ T8869] ? dlci_ioctl_set+0x40/0x40 [ 78.829907][ T8869] ? __do_page_fault+0x56a/0xdd0 [ 78.834830][ T8869] ? dlci_ioctl_set+0x40/0x40 [ 78.839491][ T8869] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.845829][ T8869] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.852055][ T8869] ? __fget_light+0x1a9/0x230 [ 78.856708][ T8869] ? __fdget+0x1b/0x20 [ 78.860751][ T8869] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 78.866974][ T8869] __sys_sendmsg+0x105/0x1d0 [ 78.871539][ T8869] ? __sys_sendmsg_sock+0xd0/0xd0 [ 78.876543][ T8869] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 78.881978][ T8869] ? do_syscall_64+0x26/0x6a0 [ 78.886651][ T8869] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 78.892792][ T8869] ? do_syscall_64+0x26/0x6a0 [ 78.897453][ T8869] __x64_sys_sendmsg+0x78/0xb0 [ 78.902196][ T8869] do_syscall_64+0xfd/0x6a0 [ 78.906679][ T8869] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 78.912556][ T8869] RIP: 0033:0x441b59 [ 78.916430][ T8869] 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 [ 78.936010][ T8869] RSP: 002b:00007ffcfa8a7b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.944409][ T8869] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 78.953590][ T8869] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 78.961561][ T8869] RBP: 00007ffcfa8a7b60 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 78.969513][ T8869] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 78.977471][ T8869] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 78.985433][ T8869] Modules linked in: [ 78.989988][ T8869] ---[ end trace fc6b2160f7aaf102 ]--- [ 78.995455][ T8869] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 79.001468][ T8869] 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 [ 79.021095][ T8869] RSP: 0018:ffff888097e9f450 EFLAGS: 00010246 [ 79.027199][ T8869] RAX: dffffc0000000000 RBX: ffff88808264cdc0 RCX: ffffffff8159b2aa [ 79.035281][ T8869] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88808264d128 [ 79.043650][ T8869] RBP: ffff888097e9f468 R08: 0000000000000004 R09: ffffed1012fd3e7d [ 79.051661][ T8869] R10: ffffed1012fd3e7c R11: 0000000000000003 R12: 0000000000000000 [ 79.059651][ T8869] R13: 0000000000000000 R14: ffff88808264d120 R15: ffff88808264d080 [ 79.067648][ T8869] FS: 0000555555fd1880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 79.076566][ T8869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.083358][ T8869] CR2: 0000000020000610 CR3: 000000009be0b000 CR4: 00000000001406e0 [ 79.091351][ T8869] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.100205][ T8869] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.108197][ T8869] Kernel panic - not syncing: Fatal exception [ 79.115897][ T8869] Kernel Offset: disabled [ 79.120218][ T8869] Rebooting in 86400 seconds..