[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 28.495575][ T22] kauditd_printk_skb: 20 callbacks suppressed [ 28.495582][ T22] audit: type=1400 audit(1572144849.218:41): avc: denied { map } for pid=6967 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 '10.128.0.213' (ECDSA) to the list of known hosts. [ 51.542379][ T22] audit: type=1400 audit(1572144872.268:42): avc: denied { map } for pid=6983 comm="syz-executor648" path="/root/syz-executor648689770" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program [ 58.570207][ T22] audit: type=1400 audit(1572144879.298:43): avc: denied { create } for pid=6984 comm="syz-executor648" 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 [ 58.571303][ T6984] netlink: 'syz-executor648': attribute type 2 has an invalid length. [ 58.594932][ T22] audit: type=1400 audit(1572144879.298:44): avc: denied { write } for pid=6984 comm="syz-executor648" 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 executing program [ 64.719451][ T6985] netlink: 'syz-executor648': attribute type 2 has an invalid length. [ 65.702037][ T6983] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810afe7380 (size 128): comm "syz-executor648", pid 6984, jiffies 4294943130 (age 15.530s) hex dump (first 32 bytes): 00 30 e3 2a 81 88 ff ff 00 74 fe 0a 81 88 ff ff .0.*.....t...... 00 1c 06 20 81 88 ff ff 00 00 00 00 00 00 00 00 ... ............ backtrace: [<000000008f508cdc>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006b05bd58>] ovs_vport_alloc+0x37/0xf0 [<000000004b291f3f>] internal_dev_create+0x24/0x1d0 [<00000000e53b8651>] ovs_vport_add+0x81/0x190 [<00000000a1585803>] new_vport+0x19/0x80 [<00000000b1ec49fa>] ovs_dp_cmd_new+0x290/0x410 [<00000000b5a5868e>] genl_family_rcv_msg+0x2ab/0x5b0 [<000000005db46853>] genl_rcv_msg+0x54/0xa0 [<0000000019ead89c>] netlink_rcv_skb+0x61/0x170 [<00000000e47d1ad1>] genl_rcv+0x29/0x40 [<000000008729f3e7>] netlink_unicast+0x1ec/0x2d0 [<0000000052896294>] netlink_sendmsg+0x270/0x480 [<00000000f4a9444d>] sock_sendmsg+0x54/0x70 [<00000000e3fcd90d>] ___sys_sendmsg+0x393/0x3c0 [<000000006c9625a6>] __sys_sendmsg+0x80/0xf0 [<0000000077829189>] __x64_sys_sendmsg+0x23/0x30