[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 65.431205][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 65.431215][ T26] audit: type=1800 audit(1567844872.384:29): pid=9655 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 65.473297][ T26] audit: type=1800 audit(1567844872.384:30): pid=9655 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts. syzkaller login: [ 76.856601][ T9806] IPVS: ftp: loaded support on port[0] = 21 [ 76.900316][ T9806] chnl_net:caif_netlink_parms(): no params data found [ 76.921635][ T9806] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.929015][ T9806] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.936538][ T9806] device bridge_slave_0 entered promiscuous mode [ 76.943676][ T9806] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.950795][ T9806] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.958318][ T9806] device bridge_slave_1 entered promiscuous mode [ 76.972945][ T9806] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.983369][ T9806] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.999434][ T9806] team0: Port device team_slave_0 added [ 77.006210][ T9806] team0: Port device team_slave_1 added [ 77.086013][ T9806] device hsr_slave_0 entered promiscuous mode [ 77.134736][ T9806] device hsr_slave_1 entered promiscuous mode [ 77.201299][ T9806] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.208493][ T9806] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.215882][ T9806] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.222939][ T9806] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.246889][ T9806] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.257314][ T3024] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.276552][ T3024] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.284129][ T3024] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.292181][ T3024] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.302375][ T9806] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.311192][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.319790][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.326859][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.337072][ T3024] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.345416][ T3024] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.352432][ T3024] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.370906][ T9806] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.381632][ T9806] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.393855][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.402628][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.411107][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.419558][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.427795][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.435315][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 77.449939][ T9806] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.478141][ T9806] kasan: CONFIG_KASAN_INLINE enabled [ 77.483442][ T9806] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 77.491868][ T9806] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 77.498811][ T9806] CPU: 0 PID: 9806 Comm: syz-executor784 Not tainted 5.3.0-rc7+ #0 [ 77.506752][ T9806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.516802][ T9806] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 77.522763][ T9806] 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 [ 77.542351][ T9806] RSP: 0018:ffff88809356f450 EFLAGS: 00010246 [ 77.548426][ T9806] RAX: dffffc0000000000 RBX: ffff88809203edc0 RCX: ffffffff8159b24a [ 77.556380][ T9806] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809203f128 [ 77.564331][ T9806] RBP: ffff88809356f468 R08: 0000000000000004 R09: ffffed10126ade7d [ 77.572289][ T9806] R10: ffffed10126ade7c R11: 0000000000000003 R12: 0000000000000000 [ 77.580251][ T9806] R13: 0000000000000000 R14: ffff88809203f120 R15: ffff88809203f080 [ 77.588200][ T9806] FS: 00005555555e8880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 77.597104][ T9806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.603663][ T9806] CR2: 0000000020000610 CR3: 00000000a1c9a000 CR4: 00000000001406f0 [ 77.611614][ T9806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.619564][ T9806] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.627513][ T9806] Call Trace: [ 77.630790][ T9806] cbs_destroy+0x7d/0x2a0 [ 77.635098][ T9806] ? cbs_init+0x25d/0x450 [ 77.639437][ T9806] ? cbs_dequeue_soft+0x410/0x410 [ 77.644451][ T9806] qdisc_create+0xbc6/0x1210 [ 77.649036][ T9806] ? tc_get_qdisc+0xc10/0xc10 [ 77.653734][ T9806] ? __nla_parse+0x43/0x60 [ 77.658135][ T9806] tc_modify_qdisc+0x524/0x1c50 [ 77.663028][ T9806] ? qdisc_create+0x1210/0x1210 [ 77.667875][ T9806] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 77.673005][ T9806] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.679230][ T9806] ? qdisc_create+0x1210/0x1210 [ 77.684060][ T9806] rtnetlink_rcv_msg+0x463/0xb00 [ 77.688986][ T9806] ? rtnetlink_put_metrics+0x580/0x580 [ 77.694446][ T9806] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 77.699707][ T9806] ? __copy_skb_header+0x250/0x550 [ 77.704801][ T9806] netlink_rcv_skb+0x177/0x450 [ 77.709542][ T9806] ? rtnetlink_put_metrics+0x580/0x580 [ 77.714979][ T9806] ? netlink_ack+0xb30/0xb30 [ 77.719645][ T9806] ? netlink_deliver_tap+0x254/0xbf0 [ 77.724925][ T9806] rtnetlink_rcv+0x1d/0x30 [ 77.729317][ T9806] netlink_unicast+0x531/0x710 [ 77.734056][ T9806] ? netlink_attachskb+0x7c0/0x7c0 [ 77.739143][ T9806] ? _copy_from_iter_full+0x25d/0x8a0 [ 77.744502][ T9806] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 77.750205][ T9806] ? __check_object_size+0x3d/0x437 [ 77.755380][ T9806] netlink_sendmsg+0x8a5/0xd60 [ 77.760121][ T9806] ? netlink_unicast+0x710/0x710 [ 77.765037][ T9806] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 77.770567][ T9806] ? apparmor_socket_sendmsg+0x2a/0x30 [ 77.776019][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.782407][ T9806] ? security_socket_sendmsg+0x8d/0xc0 [ 77.787841][ T9806] ? netlink_unicast+0x710/0x710 [ 77.792758][ T9806] sock_sendmsg+0xd7/0x130 [ 77.797151][ T9806] ___sys_sendmsg+0x803/0x920 [ 77.801978][ T9806] ? copy_msghdr_from_user+0x440/0x440 [ 77.807504][ T9806] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 77.813718][ T9806] ? tomoyo_path_number_perm+0x263/0x520 [ 77.819326][ T9806] ? sock_ioctl+0x489/0x780 [ 77.823803][ T9806] ? dlci_ioctl_set+0x40/0x40 [ 77.828478][ T9806] ? dlci_ioctl_set+0x40/0x40 [ 77.833139][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.839373][ T9806] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.845589][ T9806] ? __fget_light+0x1a9/0x230 [ 77.850239][ T9806] ? __fdget+0x1b/0x20 [ 77.854292][ T9806] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.860515][ T9806] __sys_sendmsg+0x105/0x1d0 [ 77.865098][ T9806] ? __sys_sendmsg_sock+0xd0/0xd0 [ 77.870105][ T9806] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 77.876167][ T9806] __x64_sys_sendmsg+0x78/0xb0 [ 77.880909][ T9806] do_syscall_64+0xfd/0x6a0 [ 77.885391][ T9806] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.891256][ T9806] RIP: 0033:0x441b59 [ 77.895145][ T9806] 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 [ 77.914731][ T9806] RSP: 002b:00007ffcfa20ef28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.923128][ T9806] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b59 [ 77.931078][ T9806] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 77.939029][ T9806] RBP: 00007ffcfa20ef40 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 77.946985][ T9806] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 77.955018][ T9806] R13: 00000000004030f0 R14: 0000000000000000 R15: 0000000000000000 [ 77.963005][ T9806] Modules linked in: [ 77.968420][ T9806] ---[ end trace 8176c51b66fec39a ]--- [ 77.973920][ T9806] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 77.979939][ T9806] 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 [ 77.999595][ T9806] RSP: 0018:ffff88809356f450 EFLAGS: 00010246 [ 78.005685][ T9806] RAX: dffffc0000000000 RBX: ffff88809203edc0 RCX: ffffffff8159b24a [ 78.013647][ T9806] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809203f128 [ 78.021728][ T9806] RBP: ffff88809356f468 R08: 0000000000000004 R09: ffffed10126ade7d [ 78.029733][ T9806] R10: ffffed10126ade7c R11: 0000000000000003 R12: 0000000000000000 [ 78.037715][ T9806] R13: 0000000000000000 R14: ffff88809203f120 R15: ffff88809203f080 [ 78.045698][ T9806] FS: 00005555555e8880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 78.054635][ T9806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.061209][ T9806] CR2: 0000000020000610 CR3: 00000000a1c9a000 CR4: 00000000001406f0 [ 78.069198][ T9806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.077179][ T9806] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.085154][ T9806] Kernel panic - not syncing: Fatal exception [ 78.092477][ T9806] Kernel Offset: disabled [ 78.096797][ T9806] Rebooting in 86400 seconds..