[ 77.153286][ T27] audit: type=1800 audit(1564298689.827:29): pid=10873 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.188011][ T27] audit: type=1800 audit(1564298689.827:30): pid=10873 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.255' (ECDSA) to the list of known hosts. syzkaller login: [ 85.541701][ T27] kauditd_printk_skb: 5 callbacks suppressed [ 85.541718][ T27] audit: type=1400 audit(1564298698.217:36): avc: denied { map } for pid=11061 comm="syz-executor008" path="/root/syz-executor008739219" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 85.584333][T11062] IPVS: ftp: loaded support on port[0] = 21 [ 85.630168][T11062] chnl_net:caif_netlink_parms(): no params data found [ 85.653542][T11062] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.660787][T11062] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.668473][T11062] device bridge_slave_0 entered promiscuous mode [ 85.676124][T11062] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.683328][T11062] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.690941][T11062] device bridge_slave_1 entered promiscuous mode [ 85.705128][T11062] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.716034][T11062] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.732650][T11062] team0: Port device team_slave_0 added [ 85.739648][T11062] team0: Port device team_slave_1 added [ 85.819943][T11062] device hsr_slave_0 entered promiscuous mode [ 85.888416][T11062] device hsr_slave_1 entered promiscuous mode [ 85.963899][T11062] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.971032][T11062] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.978419][T11062] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.985487][T11062] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.013131][T11062] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.024471][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 86.032715][ T3573] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.050802][ T3573] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.058931][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 86.070795][T11062] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.080031][ T3021] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 86.088542][ T3021] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.095614][ T3021] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.116541][T11062] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 86.127183][T11062] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 86.139732][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 86.148614][ T3573] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.155646][ T3573] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.164038][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 86.172444][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 86.180741][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 86.188915][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 86.197010][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 86.204583][ T3573] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 86.219152][T11062] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.247759][ T27] audit: type=1400 audit(1564298698.917:37): avc: denied { create } for pid=11062 comm="syz-executor008" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 86.250744][T11062] Started in network mode [ 86.276986][T11062] Own node identity ac14141, cluster identity 4711 [ 86.277373][ T27] audit: type=1400 audit(1564298698.917:38): avc: denied { write } for pid=11062 comm="syz-executor008" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 86.284241][T11062] New replicast peer: 172.20.20.0 [ 86.308941][ T27] audit: type=1400 audit(1564298698.917:39): avc: denied { read } for pid=11062 comm="syz-executor008" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 86.314164][T11062] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor008/11062 [ 86.347684][T11062] caller is dst_cache_get+0x3d/0xb0 [ 86.352887][T11062] CPU: 0 PID: 11062 Comm: syz-executor008 Not tainted 5.3.0-rc1+ #79 [ 86.360931][T11062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.370966][T11062] Call Trace: [ 86.374242][T11062] dump_stack+0x172/0x1f0 [ 86.378557][T11062] debug_smp_processor_id.cold+0x87/0x9d [ 86.384452][T11062] dst_cache_get+0x3d/0xb0 [ 86.388871][T11062] tipc_udp_xmit.isra.0+0xc4/0xb80 [ 86.393962][T11062] ? kasan_kmalloc+0x9/0x10 [ 86.398474][T11062] ? tipc_udp_addr2str+0x170/0x170 [ 86.403574][T11062] ? __copy_skb_header+0x2e8/0x550 [ 86.408676][T11062] ? __skb_checksum_complete+0x3f0/0x3f0 [ 86.414285][T11062] ? netdev_alloc_frag+0x1b0/0x1b0 [ 86.419389][T11062] ? skb_copy_header+0x21/0x2b0 [ 86.424217][T11062] ? __pskb_copy_fclone+0x516/0xc90 [ 86.429410][T11062] ? lock_downgrade+0x920/0x920 [ 86.434241][T11062] tipc_udp_send_msg+0x29a/0x490 [ 86.439163][T11062] tipc_bearer_xmit_skb+0x17e/0x370 [ 86.444341][T11062] tipc_enable_bearer+0xacf/0xd30 [ 86.449361][T11062] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 86.455243][T11062] ? tipc_bearer_xmit_skb+0x370/0x370 [ 86.460685][T11062] ? nla_memcpy+0xb0/0xb0 [ 86.464996][T11062] __tipc_nl_bearer_enable+0x2de/0x3a0 [ 86.470444][T11062] ? __tipc_nl_bearer_enable+0x2de/0x3a0 [ 86.476054][T11062] ? tipc_nl_bearer_disable+0x40/0x40 [ 86.481711][T11062] ? nla_memcpy+0xb0/0xb0 [ 86.486033][T11062] ? lock_acquire+0x190/0x410 [ 86.490690][T11062] tipc_nl_bearer_enable+0x23/0x40 [ 86.495781][T11062] genl_family_rcv_msg+0x74b/0xf90 [ 86.500872][T11062] ? genl_unregister_family+0x7b0/0x7b0 [ 86.506415][T11062] ? __local_bh_enable_ip+0x15a/0x270 [ 86.511767][T11062] ? __dev_queue_xmit+0xbb5/0x3650 [ 86.516853][T11062] ? __netlink_lookup+0x3fa/0x7b0 [ 86.521874][T11062] ? __kasan_check_read+0x11/0x20 [ 86.526885][T11062] genl_rcv_msg+0xca/0x16c [ 86.531282][T11062] netlink_rcv_skb+0x177/0x450 [ 86.536021][T11062] ? genl_family_rcv_msg+0xf90/0xf90 [ 86.541306][T11062] ? netlink_ack+0xb30/0xb30 [ 86.545895][T11062] ? __kasan_check_write+0x14/0x20 [ 86.550983][T11062] ? netlink_deliver_tap+0x254/0xbf0 [ 86.556328][T11062] genl_rcv+0x29/0x40 [ 86.560288][T11062] netlink_unicast+0x531/0x710 [ 86.565042][T11062] ? netlink_attachskb+0x7c0/0x7c0 [ 86.570146][T11062] ? _copy_from_iter_full+0x25d/0x8a0 [ 86.575528][T11062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.581767][T11062] netlink_sendmsg+0x8a5/0xd60 [ 86.586539][T11062] ? netlink_unicast+0x710/0x710 [ 86.591458][T11062] ? tomoyo_socket_sendmsg+0x26/0x30 [ 86.596738][T11062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.602970][T11062] ? security_socket_sendmsg+0x8d/0xc0 [ 86.608431][T11062] ? netlink_unicast+0x710/0x710 [ 86.613369][T11062] sock_sendmsg+0xd7/0x130 [ 86.617764][T11062] ___sys_sendmsg+0x803/0x920 [ 86.622435][T11062] ? copy_msghdr_from_user+0x440/0x440 [ 86.627878][T11062] ? __kasan_check_write+0x14/0x20 [ 86.632993][T11062] ? lock_downgrade+0x920/0x920 [ 86.637848][T11062] ? debug_object_active_state+0x105/0x350 [ 86.643646][T11062] ? trace_hardirqs_on+0x67/0x240 [ 86.648664][T11062] ? __kasan_check_read+0x11/0x20 [ 86.653692][T11062] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 86.659498][T11062] ? debug_object_active_state+0x28a/0x350 [ 86.665323][T11062] ? debug_object_deactivate+0x320/0x320 [ 86.671181][T11062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.677411][T11062] ? __fget_light+0x1a9/0x230 [ 86.682153][T11062] ? __fdget+0x1b/0x20 [ 86.686201][T11062] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 86.692510][T11062] __sys_sendmsg+0x105/0x1d0 [ 86.697254][T11062] ? __sys_sendmsg_sock+0xd0/0xd0 [ 86.702285][T11062] ? task_work_run+0x63/0x1c0 [ 86.706960][T11062] ? switch_fpu_return+0x1fa/0x4f0 [ 86.712061][T11062] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 86.718122][T11062] __x64_sys_sendmsg+0x78/0xb0 [ 86.722896][T11062] do_syscall_64+0xfd/0x6a0 [ 86.727383][T11062] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.733252][T11062] RIP: 0033:0x4458d9 [ 86.737141][T11062] 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 9b d4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 86.756743][T11062] RSP: 002b:00007fff1bf1cc38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.765144][T11062] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004458d9 [ 86.773092][T11062] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 86.781060][T11062] RBP: 00007fff1bf1cc50 R08: 0000000000000000 R09: 0000000001bbbbbb [ 86.789100][T11062] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.797050][T11062] R13: 0000000000403290 R14: 0000000000000000 R15: 0000000000000000 [ 86.806182][T11062] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor008/11062 [ 86.815770][T11062] caller is dst_cache_set_ip4+0xa7/0x352 [ 86.821458][T11062] CPU: 0 PID: 11062 Comm: syz-executor008 Not tainted 5.3.0-rc1+ #79 [ 86.829547][T11062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.839701][T11062] Call Trace: [ 86.842985][T11062] dump_stack+0x172/0x1f0 [ 86.847305][T11062] debug_smp_processor_id.cold+0x87/0x9d [ 86.852953][T11062] dst_cache_set_ip4+0xa7/0x352 [ 86.857803][T11062] ? dst_cache_get_ip6+0x1a0/0x1a0 [ 86.862916][T11062] ? xfrm_lookup_route+0x5b/0x1f0 [ 86.867949][T11062] tipc_udp_xmit.isra.0+0x846/0xb80 [ 86.873172][T11062] ? tipc_udp_addr2str+0x170/0x170 [ 86.878285][T11062] ? __copy_skb_header+0x2e8/0x550 [ 86.883415][T11062] ? netdev_alloc_frag+0x1b0/0x1b0 [ 86.888518][T11062] ? skb_copy_header+0x21/0x2b0 [ 86.893375][T11062] ? __pskb_copy_fclone+0x516/0xc90 [ 86.898569][T11062] ? lock_downgrade+0x920/0x920 [ 86.903421][T11062] tipc_udp_send_msg+0x29a/0x490 [ 86.908369][T11062] tipc_bearer_xmit_skb+0x17e/0x370 [ 86.913568][T11062] tipc_enable_bearer+0xacf/0xd30 [ 86.918613][T11062] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 86.924537][T11062] ? tipc_bearer_xmit_skb+0x370/0x370 [ 86.929918][T11062] ? nla_memcpy+0xb0/0xb0 [ 86.934260][T11062] __tipc_nl_bearer_enable+0x2de/0x3a0 [ 86.939715][T11062] ? __tipc_nl_bearer_enable+0x2de/0x3a0 [ 86.945363][T11062] ? tipc_nl_bearer_disable+0x40/0x40 [ 86.950737][T11062] ? nla_memcpy+0xb0/0xb0 [ 86.955060][T11062] ? lock_acquire+0x190/0x410 [ 86.959752][T11062] tipc_nl_bearer_enable+0x23/0x40 [ 86.964876][T11062] genl_family_rcv_msg+0x74b/0xf90 [ 86.969989][T11062] ? genl_unregister_family+0x7b0/0x7b0 [ 86.975540][T11062] ? __local_bh_enable_ip+0x15a/0x270 [ 86.980906][T11062] ? __dev_queue_xmit+0xbb5/0x3650 [ 86.986026][T11062] ? __netlink_lookup+0x3fa/0x7b0 [ 86.991061][T11062] ? __kasan_check_read+0x11/0x20 [ 86.996082][T11062] genl_rcv_msg+0xca/0x16c [ 87.000519][T11062] netlink_rcv_skb+0x177/0x450 [ 87.005301][T11062] ? genl_family_rcv_msg+0xf90/0xf90 [ 87.010609][T11062] ? netlink_ack+0xb30/0xb30 [ 87.015389][T11062] ? __kasan_check_write+0x14/0x20 [ 87.020548][T11062] ? netlink_deliver_tap+0x254/0xbf0 [ 87.025832][T11062] genl_rcv+0x29/0x40 [ 87.029825][T11062] netlink_unicast+0x531/0x710 [ 87.034586][T11062] ? netlink_attachskb+0x7c0/0x7c0 [ 87.039707][T11062] ? _copy_from_iter_full+0x25d/0x8a0 [ 87.045082][T11062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.051335][T11062] netlink_sendmsg+0x8a5/0xd60 [ 87.056103][T11062] ? netlink_unicast+0x710/0x710 [ 87.061054][T11062] ? tomoyo_socket_sendmsg+0x26/0x30 [ 87.066367][T11062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.072618][T11062] ? security_socket_sendmsg+0x8d/0xc0 [ 87.078083][T11062] ? netlink_unicast+0x710/0x710 [ 87.083033][T11062] sock_sendmsg+0xd7/0x130 [ 87.087619][T11062] ___sys_sendmsg+0x803/0x920 [ 87.092292][T11062] ? copy_msghdr_from_user+0x440/0x440 [ 87.097746][T11062] ? __kasan_check_write+0x14/0x20 [ 87.102864][T11062] ? lock_downgrade+0x920/0x920 [ 87.107707][T11062] ? debug_object_active_state+0x105/0x350 [ 87.113505][T11062] ? trace_hardirqs_on+0x67/0x240 [ 87.118525][T11062] ? __kasan_check_read+0x11/0x20 [ 87.123544][T11062] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 87.129342][T11062] ? debug_object_active_state+0x28a/0x350 [ 87.135159][T11062] ? debug_object_deactivate+0x320/0x320 [ 87.140798][T11062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.147029][T11062] ? __fget_light+0x1a9/0x230 [ 87.151695][T11062] ? __fdget+0x1b/0x20 [ 87.155772][T11062] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 87.162027][T11062] __sys_sendmsg+0x105/0x1d0 [ 87.166748][T11062] ? __sys_sendmsg_sock+0xd0/0xd0 [ 87.171783][T11062] ? task_work_run+0x63/0x1c0 [ 87.176460][T11062] ? switch_fpu_return+0x1fa/0x4f0 [ 87.181583][T11062] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 87.187660][T11062] __x64_sys_sendmsg+0x78/0xb0 [ 87.192527][T11062] do_syscall_64+0xfd/0x6a0 [ 87.197029][T11062] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 87.202911][T11062] RIP: 0033:0x4458d9 [ 87.206794][T11062] 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 9b d4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 87.226752][T11062] RSP: 002b:00007fff1bf1cc38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 87.235244][T11062] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004458d9 [ 87.243222][T11062] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 [ 87.251207][T11062] RBP: 00007fff1bf1cc50 R08: 0000000000000000 R09: 0000000001bbbbbb [ 87.259171][T11062] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.267155][T11062] R13: 0000000000403290 R14: 0000000000000000 R15: 000000000