[ 26.026548][ T26] audit: type=1800 audit(1575728477.820:34): pid=7015 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 30.178597][ T26] kauditd_printk_skb: 6 callbacks suppressed [ 30.178603][ T26] audit: type=1400 audit(1575728482.020:41): avc: denied { map } for pid=7195 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts. 2019/12/07 14:37:49 parsed 1 programs [ 1017.665059][ T26] audit: type=1400 audit(1575729469.500:42): avc: denied { map } for pid=7210 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=2339 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 1019.533665][ T26] audit: type=1400 audit(1575729471.370:43): avc: denied { map } for pid=7210 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=16657 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 1019.560645][ T3796] kmemleak: Automatic memory scanning thread ended 2019/12/07 14:37:58 executed programs: 0 [ 1026.712007][ T7225] IPVS: ftp: loaded support on port[0] = 21 [ 1026.731344][ T7225] chnl_net:caif_netlink_parms(): no params data found [ 1026.742831][ T7225] bridge0: port 1(bridge_slave_0) entered blocking state [ 1026.750072][ T7225] bridge0: port 1(bridge_slave_0) entered disabled state [ 1026.757529][ T7225] device bridge_slave_0 entered promiscuous mode [ 1026.764529][ T7225] bridge0: port 2(bridge_slave_1) entered blocking state [ 1026.771629][ T7225] bridge0: port 2(bridge_slave_1) entered disabled state [ 1026.778948][ T7225] device bridge_slave_1 entered promiscuous mode [ 1026.788171][ T7225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1026.797952][ T7225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1026.809770][ T7225] team0: Port device team_slave_0 added [ 1026.815822][ T7225] team0: Port device team_slave_1 added [ 1026.858360][ T7225] device hsr_slave_0 entered promiscuous mode [ 1026.897656][ T7225] device hsr_slave_1 entered promiscuous mode [ 1026.952626][ T26] audit: type=1400 audit(1575729478.790:44): avc: denied { create } for pid=7225 comm="syz-executor.0" 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 [ 1026.955877][ T7225] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1026.977281][ T26] audit: type=1400 audit(1575729478.790:45): avc: denied { write } for pid=7225 comm="syz-executor.0" 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 [ 1027.008595][ T26] audit: type=1400 audit(1575729478.790:46): avc: denied { read } for pid=7225 comm="syz-executor.0" 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 [ 1027.058242][ T7225] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1027.108223][ T7225] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1027.208263][ T7225] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1027.279945][ T7225] bridge0: port 2(bridge_slave_1) entered blocking state [ 1027.287347][ T7225] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1027.294873][ T7225] bridge0: port 1(bridge_slave_0) entered blocking state [ 1027.301909][ T7225] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1027.317645][ T7225] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1027.325747][ T7227] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1027.343727][ T7227] bridge0: port 1(bridge_slave_0) entered disabled state [ 1027.361362][ T7227] bridge0: port 2(bridge_slave_1) entered disabled state [ 1027.368955][ T7227] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1027.377559][ T7225] 8021q: adding VLAN 0 to HW filter on device team0 [ 1027.387974][ T7229] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1027.396134][ T7229] bridge0: port 1(bridge_slave_0) entered blocking state [ 1027.403184][ T7229] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1027.410547][ T7229] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1027.419124][ T7229] bridge0: port 2(bridge_slave_1) entered blocking state [ 1027.426652][ T7229] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1027.435163][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1027.443274][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1027.451722][ T7229] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1027.460820][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1027.470133][ T7225] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1027.480912][ T7225] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1027.488395][ T7229] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1027.499617][ T7225] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1027.507865][ T7227] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1027.515182][ T7227] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1027.517847][ T26] audit: type=1400 audit(1575729479.350:47): avc: denied { associate } for pid=7225 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 2019/12/07 14:38:04 executed programs: 1 [ 1034.003283][ T7246] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888114468700 (size 224): comm "syz-executor.0", pid 7234, jiffies 4295040027 (age 13.070s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 2c 1e 17 81 88 ff ff .........,...... backtrace: [<00000000dce9790d>] kmem_cache_alloc_node+0x163/0x2f0 [<000000000eabe7c9>] __alloc_skb+0x6e/0x210 [<00000000c9064373>] sock_wmalloc+0x51/0x80 [<00000000cb224942>] pppoe_sendmsg+0xca/0x280 [<00000000b0035a53>] sock_sendmsg+0x54/0x70 [<000000004bacb3a6>] ____sys_sendmsg+0x123/0x300 [<000000003cdcaa13>] ___sys_sendmsg+0x8a/0xd0 [<00000000de36ba4d>] __sys_sendmmsg+0xf4/0x270 [<00000000f6f7ed87>] __x64_sys_sendmmsg+0x28/0x30 [<00000000f20acd89>] do_syscall_64+0x73/0x220 [<00000000f8c41eb1>] entry_SYSCALL_64_after_hwframe+0x44/0xa9