device syz_tun left promiscuous mode
------------[ cut here ]------------
kernel BUG at kernel/sched/deadline.c:1068!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 11030 Comm: syz-executor6 Not tainted 4.9.125+ #37
task: ffff88019d835f00 task.stack: ffff8801d6400000
RIP: 0010:[<ffffffff811e10a0>]  [<ffffffff811e10a0>] enqueue_task_dl+0x720/0x1f20 kernel/sched/deadline.c:1093
RSP: 0018:ffff8801d6407690  EFLAGS: 00010087
RAX: 0000000000000000 RBX: ffff8801d2b317c0 RCX: ffffed0033b06cf5
RDX: 1ffff1003a566365 RSI: ffff8801d2b317c0 RDI: ffff8801d2b31b28
RBP: ffff8801d6407700 R08: ffff88019d8367b0 R09: 0000000000000001
R10: 0000000000000078 R11: 000000254e880dd2 R12: ffff8801db721000
R13: ffff8801d2b31ad0 R14: 0000000000000000 R15: ffff8801db721000
FS:  00007f5127d29700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffed7720f60 CR3: 00000001c80c1000 CR4: 00000000001606b0
DR0: 0001000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 ffffffff81180384 ffff88019d8367a8 ffff8801d2b317d0 ffff8801d2b317c0
 0000000000000046 ffff88019d835f00 ffff8801db721018 ffff8801d2b31bd0
 ffff8801d2b317c0 ffff8801d2b317c0 ffff8801db721000 0000000000000000
Call Trace:
 [<ffffffff8116a803>] enqueue_task kernel/sched/core.c:774 [inline]
 [<ffffffff8116a803>] activate_task+0x1e3/0x290 kernel/sched/core.c:790
 [<ffffffff811e2b8d>] push_dl_task.part.10+0x2ed/0x430 kernel/sched/deadline.c:1638
 [<ffffffff811e3596>] push_dl_task kernel/sched/deadline.c:1578 [inline]
 [<ffffffff811e3596>] push_dl_tasks.part.11+0x46/0x60 kernel/sched/deadline.c:1654
 [<ffffffff811e35b9>] push_dl_tasks+0x9/0x10 kernel/sched/deadline.c:1652
 [<ffffffff8114beb5>] __balance_callback+0x95/0xe0 kernel/sched/core.c:2865
 [<ffffffff8277dadd>] balance_callback kernel/sched/core.c:2873 [inline]
 [<ffffffff8277dadd>] __schedule+0x10ad/0x1b10 kernel/sched/core.c:3504
 [<ffffffff8277e5bf>] schedule+0x7f/0x1b0 kernel/sched/core.c:3553
 [<ffffffff8128ecc3>] freezable_schedule include/linux/freezer.h:171 [inline]
 [<ffffffff8128ecc3>] futex_wait_queue_me+0x2f3/0x5c0 kernel/futex.c:2364
 [<ffffffff81291862>] futex_wait+0x2a2/0x5d0 kernel/futex.c:2479
 [<ffffffff812957cb>] do_futex+0x23b/0x1840 kernel/futex.c:3262
 [<ffffffff81297030>] SYSC_futex kernel/futex.c:3322 [inline]
 [<ffffffff81297030>] SyS_futex+0x260/0x370 kernel/futex.c:3290
 [<ffffffff8100554f>] do_syscall_64+0x19f/0x480 arch/x86/entry/common.c:282
 [<ffffffff8278c193>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: c0 03 38 d0 7c 08 84 d2 0f 85 b8 14 00 00 83 bb cc 03 00 00 01 0f 8e 05 fa ff ff 48 89 de 4c 89 ff e8 55 f5 ff ff e9 f5 f9 ff ff <0f> 0b 4c 89 e6 4c 89 ef e8 23 b5 ff ff 48 c7 45 d0 00 10 02 00 
RIP  [<ffffffff811e10a0>] enqueue_task_dl+0x720/0x1f20 kernel/sched/deadline.c:1093
 RSP <ffff8801d6407690>
---[ end trace cbe902a7a9f55e87 ]---