[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 27.348459][ T22] kauditd_printk_skb: 20 callbacks suppressed [ 27.348466][ T22] audit: type=1400 audit(1571684077.190:41): avc: denied { map } for pid=6836 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 '10.128.1.42' (ECDSA) to the list of known hosts. [ 39.192094][ T22] audit: type=1400 audit(1571684089.040:42): avc: denied { map } for pid=6852 comm="syz-executor096" path="/root/syz-executor096903088" 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 [ 46.011679][ T6853] IPVS: ftp: loaded support on port[0] = 21 [ 46.031396][ T6853] chnl_net:caif_netlink_parms(): no params data found [ 46.043466][ T6853] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.050946][ T6853] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.058416][ T6853] device bridge_slave_0 entered promiscuous mode [ 46.065342][ T6853] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.073087][ T6853] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.080707][ T6853] device bridge_slave_1 entered promiscuous mode [ 46.089775][ T6853] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 46.099554][ T6853] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 46.111176][ T6853] team0: Port device team_slave_0 added [ 46.117045][ T6853] team0: Port device team_slave_1 added [ 46.141355][ T6853] device hsr_slave_0 entered promiscuous mode [ 46.190703][ T6853] device hsr_slave_1 entered promiscuous mode [ 46.262426][ T6853] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.269548][ T6853] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.276900][ T6853] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.283970][ T6853] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.297067][ T6853] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.304947][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.313580][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.321820][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.329085][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.337612][ T6853] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.355616][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.363818][ T16] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.374494][ T16] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.386810][ T6853] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 46.397321][ T6853] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.408476][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.417000][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.424051][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.432310][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.440425][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.448660][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 46.456658][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.464754][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.473119][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.483888][ T6853] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.499610][ T22] audit: type=1400 audit(1571684096.340:43): avc: denied { create } for pid=6853 comm="syz-executor096" 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 [ 46.500281][ T6853] netlink: 'syz-executor096': attribute type 2 has an invalid length. [ 46.526152][ T22] audit: type=1400 audit(1571684096.340:44): avc: denied { write } for pid=6853 comm="syz-executor096" 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 [ 48.000872][ T7] device bridge_slave_1 left promiscuous mode [ 48.007619][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.080816][ T7] device bridge_slave_0 left promiscuous mode [ 48.086994][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.280905][ T7] device hsr_slave_0 left promiscuous mode [ 48.360630][ T7] device hsr_slave_1 left promiscuous mode [ 48.431844][ T7] team0 (unregistering): Port device team_slave_1 removed [ 48.439776][ T7] team0 (unregistering): Port device team_slave_0 removed [ 48.447551][ T7] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 48.491703][ T7] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 48.524343][ T7] bond0 (unregistering): Released all slaves [ 52.388821][ T6852] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888121576580 (size 128): comm "syz-executor096", pid 6853, jiffies 4294941927 (age 7.830s) hex dump (first 32 bytes): 00 d0 2f 23 81 88 ff ff 00 bf 7c 1b 81 88 ff ff ../#......|..... 00 b1 69 18 81 88 ff ff 00 00 00 00 00 00 00 00 ..i............. backtrace: [<00000000e3917472>] kmem_cache_alloc_trace+0x145/0x2c0 [<0000000066dec998>] ovs_vport_alloc+0x37/0xf0 [<00000000565088e0>] internal_dev_create+0x24/0x1d0 [<00000000dcc406ae>] ovs_vport_add+0x81/0x190 [<0000000070f48592>] new_vport+0x19/0x80 [<00000000c50825f4>] ovs_dp_cmd_new+0x290/0x410 [<00000000125f09c3>] genl_family_rcv_msg+0x2ab/0x5b0 [<0000000084eac72a>] genl_rcv_msg+0x54/0xa0 [<0000000083f57bf4>] netlink_rcv_skb+0x61/0x170 [<000000002a21173d>] genl_rcv+0x29/0x40 [<0000000059638ab1>] netlink_unicast+0x1ec/0x2d0 [<00000000b4d7b7bf>] netlink_sendmsg+0x270/0x480 [<0000000063dc858d>] sock_sendmsg+0x54/0x70 [<00000000db3e6e15>] ___sys_sendmsg+0x393/0x3c0 [<00000000fdebe9ae>] __sys_sendmsg+0x80/0xf0 [<000000004557c9f9>] __x64_sys_sendmsg+0x23/0x30 BUG: memory leak unreferenced object 0xffff88811869b100 (size 64): comm "syz-executor096", pid 6853, jiffies 4294941927 (age 7.830s) hex dump (first 32 bytes): 01 00 00 00 01 00 00 00 22 01 00 00 00 00 ad de ........"....... 00 00 00 00 00 00 00 00 02 00 00 00 05 35 82 c1 .............5.. backtrace: [<000000004490e89d>] __kmalloc+0x169/0x300 [<000000005ebae734>] ovs_vport_set_upcall_portids+0x54/0xd0 [<000000006fc4aed6>] ovs_vport_alloc+0x7f/0xf0 [<00000000565088e0>] internal_dev_create+0x24/0x1d0 [<00000000dcc406ae>] ovs_vport_add+0x81/0x190 [<0000000070f48592>] new_vport+0x19/0x80 [<00000000c50825f4>] ovs_dp_cmd_new+0x290/0x410 [<00000000125f09c3>] genl_family_rcv_msg+0x2ab/0x5b0 [<0000000084eac72a>] genl_rcv_msg+0x54/0xa0 [<0000000083f57bf4>] netlink_rcv_skb+0x61/0x170 [<000000002a21173d>] genl_rcv+0x29/0x40 [<0000000059638ab1>] netlink_unicast+0x1ec/0x2d0 [<00000000b4d7b7bf>] netlink_sendmsg+0x270/0x480 [<0000000063dc858d>] sock_sendmsg+0x54/0x70 [<00000000db3e6e15>] ___sys_sendmsg+0x393/0x3c0 [<00000000fdebe9ae>] __sys_sendmsg+0x80/0xf0