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kernel BUG at kernel/sched/deadline.c:1068!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 16639 Comm: syz-executor4 Not tainted 4.9.148+ #1
task: ffff8801d52f4740 task.stack: ffff8801cd570000
RIP: 0010:[<ffffffff811e89f2>]  [<ffffffff811e89f2>] enqueue_task_dl+0x772/0x2050 kernel/sched/deadline.c:1068
RSP: 0018:ffff8801cd577750  EFLAGS: 00010087
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffff10033ffbbed
RDX: 1ffff1003a2e9955 RSI: ffff8801d174c740 RDI: ffff8801d174caa8
RBP: ffff8801cd5777c0 R08: ffff88021fffd05c R09: ffff88021fffd048
R10: ffff88021fffd050 R11: 0000000000000001 R12: ffff8801d174c740
R13: 0000000000000078 R14: ffff8801db621000 R15: ffff8801d174ca50
FS:  00007f973b453700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f973b40dfb8 CR3: 00000001d794f000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81185bf4 ffff8801d52f4740 0000000000000000 ffff8801d174c750
 0000000000000046 ffff8801db621018 ffff8801d52f4740 0000000000000000
 ffff8801d174c750 ffffffff82a4bb00 ffff8801d174c740 ffff8801db621000
Call Trace:
 [<ffffffff8116f8ca>] enqueue_task kernel/sched/core.c:774 [inline]
 [<ffffffff8116f8ca>] activate_task+0x15a/0x290 kernel/sched/core.c:790
 [<ffffffff811ea5de>] push_dl_task.part.0+0x30e/0x470 kernel/sched/deadline.c:1638
 [<ffffffff811eb0c6>] push_dl_task kernel/sched/deadline.c:1578 [inline]
 [<ffffffff811eb0c6>] push_dl_tasks+0x46/0x60 kernel/sched/deadline.c:1654
 [<ffffffff81150e6a>] __balance_callback+0x9a/0xe0 kernel/sched/core.c:2865
 [<ffffffff828030cc>] balance_callback kernel/sched/core.c:2873 [inline]
 [<ffffffff828030cc>] __schedule+0x101c/0x1b50 kernel/sched/core.c:3504
 [<ffffffff82803c92>] schedule+0x92/0x1c0 kernel/sched/core.c:3553
 [<ffffffff8129944c>] freezable_schedule include/linux/freezer.h:171 [inline]
 [<ffffffff8129944c>] futex_wait_queue_me+0x2ec/0x5a0 kernel/futex.c:2372
 [<ffffffff8129c1e8>] futex_wait+0x208/0x5d0 kernel/futex.c:2487
 [<ffffffff812a03c9>] do_futex+0x159/0x1a70 kernel/futex.c:3270
 [<ffffffff812a1f33>] SYSC_futex kernel/futex.c:3330 [inline]
 [<ffffffff812a1f33>] SyS_futex+0x253/0x360 kernel/futex.c:3298
 [<ffffffff810056bd>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285
 [<ffffffff82812993>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 38 d0 7c 08 84 d2 0f 85 f6 11 00 00 41 83 bc 24 cc 03 00 00 01 0f 8e b5 f9 ff ff 4c 89 e6 4c 89 f7 e8 93 f4 ff ff e9 a5 f9 ff ff <0f> 0b 4c 89 ee 4c 89 ff e8 91 b4 ff ff 48 c7 c2 00 10 02 00 4d 
RIP  [<ffffffff811e89f2>] enqueue_task_dl+0x772/0x2050 kernel/sched/deadline.c:1093
 RSP <ffff8801cd577750>
---[ end trace 6cd93848c28bd619 ]---