Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. [ 39.351043] random: sshd: uninitialized urandom read (32 bytes read) [ 39.476360] audit: type=1400 audit(1571829991.919:36): avc: denied { map } for pid=6885 comm="syz-executor790" path="/root/syz-executor790262129" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 39.721273] IPVS: ftp: loaded support on port[0] = 21 executing program [ 40.567878] BUG: sleeping function called from invalid context at kernel/workqueue.c:2816 [ 40.576324] in_atomic(): 1, irqs_disabled(): 0, pid: 6888, name: syz-executor790 [ 40.583880] 2 locks held by syz-executor790/6888: [ 40.589578] #0: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x33a/0xb70 [ 40.598236] #1: (&qdisc_rx_lock){+...}, at: [] red_change+0x32e/0x1030 [ 40.606709] Preemption disabled at: [ 40.606720] [] red_change+0x32e/0x1030 [ 40.615830] CPU: 0 PID: 6888 Comm: syz-executor790 Not tainted 4.14.150 #0 [ 40.622828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.632171] Call Trace: [ 40.634751] dump_stack+0x138/0x197 [ 40.638369] ? red_change+0x32e/0x1030 [ 40.642262] ___might_sleep.cold+0x1bd/0x1f6 [ 40.646652] __might_sleep+0x93/0xb0 [ 40.650346] flush_work+0xdb/0x730 [ 40.653861] ? kasan_slab_free+0x75/0xc0 [ 40.658009] ? kfree+0xcc/0x270 [ 40.661282] ? fifo_create_dflt+0x84/0xd0 [ 40.665410] ? insert_work+0x320/0x320 [ 40.669277] ? netlink_rcv_skb+0x14f/0x3c0 [ 40.673494] ? __lock_acquire+0x5f7/0x4620 [ 40.677706] ? do_syscall_64+0x1e8/0x640 [ 40.681747] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.687095] ? mark_held_locks+0xb1/0x100 [ 40.691225] ? __cancel_work_timer+0x166/0x480 [ 40.695799] __cancel_work_timer+0x2f0/0x480 [ 40.700191] ? cancel_delayed_work+0x20/0x20 [ 40.704581] ? __hrtimer_run_queues+0xbc0/0xbc0 [ 40.709225] ? save_trace+0x290/0x290 [ 40.713004] ? mark_held_locks+0xb1/0x100 [ 40.717130] ? quarantine_put+0xfa/0x1a0 [ 40.721171] ? htb_destroy_class.isra.0+0xf0/0xf0 [ 40.725992] cancel_work_sync+0x18/0x20 [ 40.729949] htb_destroy+0x26/0x420 [ 40.733554] ? htb_destroy_class.isra.0+0xf0/0xf0 [ 40.738373] qdisc_destroy+0x157/0x320 [ 40.742250] red_change+0x4d4/0x1030 [ 40.745947] ? red_graft+0x240/0x240 [ 40.749644] ? nla_strcmp+0xb9/0x100 [ 40.753342] ? lockdep_rtnl_is_held+0x1a/0x30 [ 40.757827] ? red_graft+0x240/0x240 [ 40.761518] tc_modify_qdisc+0xc5a/0x1270 [ 40.765647] ? qdisc_create+0xe60/0xe60 [ 40.769626] ? rtnetlink_rcv_msg+0x305/0xb70 [ 40.774025] ? qdisc_create+0xe60/0xe60 [ 40.777985] rtnetlink_rcv_msg+0x3eb/0xb70 [ 40.782199] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 40.786759] ? netlink_deliver_tap+0x93/0x8f0 [ 40.791233] netlink_rcv_skb+0x14f/0x3c0 [ 40.795273] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 40.799854] ? lock_downgrade+0x740/0x740 [ 40.803988] ? netlink_ack+0x9a0/0x9a0 [ 40.808134] ? netlink_deliver_tap+0xba/0x8f0 [ 40.812621] rtnetlink_rcv+0x1d/0x30 [ 40.817037] netlink_unicast+0x45d/0x640 [ 40.821087] ? netlink_attachskb+0x6a0/0x6a0 [ 40.825491] ? security_netlink_send+0x81/0xb0 [ 40.830063] netlink_sendmsg+0x7c4/0xc60 [ 40.834105] ? netlink_unicast+0x640/0x640 [ 40.838320] ? security_socket_sendmsg+0x89/0xb0 [ 40.843081] ? netlink_unicast+0x640/0x640 [ 40.847302] sock_sendmsg+0xce/0x110 [ 40.850992] ___sys_sendmsg+0x70a/0x840 [ 40.854942] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 40.859673] ? __fget+0x210/0x370 [ 40.863113] ? find_held_lock+0x35/0x130 [ 40.867151] ? __fget+0x210/0x370 [ 40.870585] ? lock_downgrade+0x740/0x740 [ 40.874709] ? __fget+0x237/0x370 [ 40.878148] ? __fget_light+0x172/0x1f0 [ 40.882101] ? __fdget+0x1b/0x20 [ 40.885443] ? sockfd_lookup_light+0xb4/0x160 [ 40.889916] __sys_sendmsg+0xb9/0x140 [ 40.893705] ? SyS_shutdown+0x170/0x170 [ 40.897662] ? do_futex+0x19e0/0x19e0 [ 40.901441] SyS_sendmsg+0x2d/0x50 [ 40.904958] ? __sys_sendmsg+0x140/0x140 [ 40.908999] do_syscall_64+0x1e8/0x640 [ 40.912862] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.917683] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.922848] RIP: 0033:0x4464d9 [ 40.926017] RSP: 002b:00007ff8d2e9fd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 40.933796] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 00000000004464d9 [ 40.941042] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 [ 40.948289] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 40.955546] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000006dbc5c [ 40.962805] R13: 00000000004aea84 R14: b35d2484a6425def R15: 10eb52a57aaf8377