Warning: Permanently added '10.128.0.82' (ECDSA) to the list of known hosts. [ 45.063839] random: sshd: uninitialized urandom read (32 bytes read) [ 45.182997] audit: type=1400 audit(1570255637.264:36): avc: denied { map } for pid=6830 comm="syz-executor228" path="/root/syz-executor228672207" 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 [ 45.420921] IPVS: ftp: loaded support on port[0] = 21 executing program [ 46.238143] BUG: sleeping function called from invalid context at kernel/workqueue.c:2816 [ 46.246717] in_atomic(): 1, irqs_disabled(): 0, pid: 6832, name: syz-executor228 [ 46.254283] 2 locks held by syz-executor228/6832: [ 46.259208] #0: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x33a/0xb70 [ 46.267876] #1: (&qdisc_rx_lock){+...}, at: [] red_change+0x32e/0x1030 [ 46.276581] Preemption disabled at: [ 46.276595] [] red_change+0x32e/0x1030 [ 46.285707] CPU: 1 PID: 6832 Comm: syz-executor228 Not tainted 4.14.146 #0 [ 46.292708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.302066] Call Trace: [ 46.304645] dump_stack+0x138/0x197 [ 46.308261] ? red_change+0x32e/0x1030 [ 46.312400] ___might_sleep.cold+0x1bd/0x1f6 [ 46.316835] __might_sleep+0x93/0xb0 [ 46.320535] flush_work+0xdb/0x730 [ 46.324182] ? kasan_slab_free+0x75/0xc0 [ 46.328222] ? kfree+0xcc/0x270 [ 46.331481] ? fifo_create_dflt+0x84/0xd0 [ 46.335608] ? insert_work+0x320/0x320 [ 46.339474] ? netlink_rcv_skb+0x14f/0x3c0 [ 46.343702] ? __lock_acquire+0x5f7/0x4620 [ 46.347917] ? do_syscall_64+0x1e8/0x640 [ 46.351970] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.357405] ? mark_held_locks+0xb1/0x100 [ 46.361624] ? __cancel_work_timer+0x166/0x480 [ 46.366223] __cancel_work_timer+0x2f0/0x480 [ 46.370618] ? cancel_delayed_work+0x20/0x20 [ 46.375108] ? __hrtimer_run_queues+0xbc0/0xbc0 [ 46.379755] ? save_trace+0x290/0x290 [ 46.383538] ? mark_held_locks+0xb1/0x100 [ 46.387669] ? quarantine_put+0xfa/0x1a0 [ 46.391711] ? htb_destroy_class.isra.0+0xf0/0xf0 [ 46.396540] cancel_work_sync+0x18/0x20 [ 46.400514] htb_destroy+0x26/0x420 [ 46.404136] ? htb_destroy_class.isra.0+0xf0/0xf0 [ 46.408958] qdisc_destroy+0x157/0x320 [ 46.412826] red_change+0x4d4/0x1030 [ 46.416522] ? red_graft+0x240/0x240 [ 46.420218] ? nla_strcmp+0xb9/0x100 [ 46.423911] ? lockdep_rtnl_is_held+0x1a/0x30 [ 46.428380] ? red_graft+0x240/0x240 [ 46.432073] tc_modify_qdisc+0xc5a/0x1270 [ 46.436221] ? qdisc_create+0xe60/0xe60 [ 46.440176] ? rtnetlink_rcv_msg+0x305/0xb70 [ 46.444567] ? qdisc_create+0xe60/0xe60 [ 46.448515] rtnetlink_rcv_msg+0x3eb/0xb70 [ 46.452733] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 46.457295] ? netlink_deliver_tap+0x93/0x8f0 [ 46.465621] netlink_rcv_skb+0x14f/0x3c0 [ 46.469694] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 46.474267] ? lock_downgrade+0x6e0/0x6e0 [ 46.478399] ? netlink_ack+0x9a0/0x9a0 [ 46.482275] ? netlink_deliver_tap+0xba/0x8f0 [ 46.486751] rtnetlink_rcv+0x1d/0x30 [ 46.490447] netlink_unicast+0x45d/0x640 [ 46.494492] ? netlink_attachskb+0x6a0/0x6a0 [ 46.498880] ? security_netlink_send+0x81/0xb0 [ 46.503443] netlink_sendmsg+0x7c4/0xc60 [ 46.507485] ? netlink_unicast+0x640/0x640 [ 46.511787] ? security_socket_sendmsg+0x89/0xb0 [ 46.516519] ? netlink_unicast+0x640/0x640 [ 46.520741] sock_sendmsg+0xce/0x110 [ 46.524433] ___sys_sendmsg+0x70a/0x840 [ 46.528384] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 46.533120] ? __fget+0x210/0x370 [ 46.536555] ? find_held_lock+0x35/0x130 [ 46.540613] ? __fget+0x210/0x370 [ 46.544063] ? lock_downgrade+0x6e0/0x6e0 [ 46.548467] ? __fget+0x237/0x370 [ 46.551912] ? __fget_light+0x172/0x1f0 [ 46.555867] ? __fdget+0x1b/0x20 [ 46.559221] ? sockfd_lookup_light+0xb4/0x160 [ 46.563695] __sys_sendmsg+0xb9/0x140 [ 46.567488] ? SyS_shutdown+0x170/0x170 [ 46.571456] ? do_futex+0x19e0/0x19e0 [ 46.575254] SyS_sendmsg+0x2d/0x50 [ 46.578830] ? __sys_sendmsg+0x140/0x140 [ 46.582875] do_syscall_64+0x1e8/0x640 [ 46.586740] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.591567] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.596870] RIP: 0033:0x446519 [ 46.600095] RSP: 002b:00007f2551573d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 46.608025] RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 0000000000446519 [ 46.615837] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 [ 46.623194] RBP: 00000000006dbc60 R08: 0000000000000000 R09: 0000000000000000 [ 46.630447] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000006dbc6c [ 46.637786] R13: 00000000004aeac4 R14: b35d2484a6425def R15: 10eb52a57aaf8377