Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 12120 Comm: syz.0.2376 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:pgtable_trans_huge_withdraw+0x115/0x310
Code: c3 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 9d e9 13 00 48 8b 03 48 89 04 24 4c 8d 78 08 4c 89 fd 48 c1 ed 03 <42> 80 7c 2d 00 00 74 08 4c 89 ff e8 7b e9 13 00 49 8b 07 48 8d 48
RSP: 0018:ffffc90003bf7300 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffffea0005d0f890 RCX: 0000000000080000
RDX: ffffc90008b21000 RSI: 0000000000003f3e RDI: 0000000000003f3f
RBP: 0000000000000001 R08: ffff888110b09e43 R09: 1ffff110221613c8
R10: dffffc0000000000 R11: ffffed10221613c9 R12: ffff8881743e2000
R13: dffffc0000000000 R14: ffff8881743e2000 R15: 0000000000000008
FS:  00007f73e27e36c0(0000) GS:ffff8882a9d0c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012033e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 zap_huge_pmd+0xa25/0xf50
 unmap_page_range+0x9fe/0x4370
 unmap_vmas+0x399/0x580
 exit_mmap+0x240/0xb40
 __mmput+0x118/0x430
 copy_process+0x2910/0x3c00
 kernel_clone+0x21e/0x840
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f73e198eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73e27e2fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f73e1be5fa0 RCX: 00007f73e198eec9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000002001000
RBP: 00007f73e1a11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f73e1be6038 R14: 00007f73e1be5fa0 R15: 00007ffe64fd2ce8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pgtable_trans_huge_withdraw+0x115/0x310
Code: c3 10 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 9d e9 13 00 48 8b 03 48 89 04 24 4c 8d 78 08 4c 89 fd 48 c1 ed 03 <42> 80 7c 2d 00 00 74 08 4c 89 ff e8 7b e9 13 00 49 8b 07 48 8d 48
RSP: 0018:ffffc90003bf7300 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffffea0005d0f890 RCX: 0000000000080000
RDX: ffffc90008b21000 RSI: 0000000000003f3e RDI: 0000000000003f3f
RBP: 0000000000000001 R08: ffff888110b09e43 R09: 1ffff110221613c8
R10: dffffc0000000000 R11: ffffed10221613c9 R12: ffff8881743e2000
R13: dffffc0000000000 R14: ffff8881743e2000 R15: 0000000000000008
FS:  00007f73e27e36c0(0000) GS:ffff8882a9d0c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012033e000 CR4: 00000000000006f0
