R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffdeeb2a45f R14: 00007fe859c83300 R15: 0000000000022000
 </TASK>
------------[ cut here ]------------
kernel BUG at mm/page_table_check.c:148!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8498 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-01647-g6e2332e0ab53 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:__page_table_check_zero+0x40a/0x5d0 mm/page_table_check.c:148
Code: 0f 84 f0 fc ff ff e8 05 20 a3 ff 48 83 eb 01 48 89 dd e9 ea fc ff ff e8 f4 1f a3 ff 0f 0b e8 ed 1f a3 ff 0f 0b e8 e6 1f a3 ff <0f> 0b e8 df 1f a3 ff 49 8b 6c 24 08 31 ff 48 89 eb 83 e3 01 48 89
RSP: 0018:ffffc9002084fae0 EFLAGS: 00010212
RAX: 000000000002214a RBX: 0000000000000001 RCX: ffffc90003771000
RDX: 0000000000040000 RSI: ffffffff81e0a8ea RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881004e6a90
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007fe859c83700(0000) GS:ffff88806b600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2db22000 CR3: 0000000115ae9000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 page_table_check_free include/linux/page_table_check.h:46 [inline]
 free_pages_prepare mm/page_alloc.c:1309 [inline]
 free_unref_page_prepare+0x70f/0xcb0 mm/page_alloc.c:2577
 free_unref_page+0x33/0x370 mm/page_alloc.c:2672
 hcd_buffer_free_pages+0xe8/0x180 drivers/usb/core/buffer.c:210
 dec_usb_memory_use_count+0x27a/0x400 drivers/usb/core/devio.c:198
 mmap_region+0x1ae0/0x28e0 mm/mmap.c:2770
 do_mmap+0x837/0xf60 mm/mmap.c:1394
 vm_mmap_pgoff+0x1a2/0x3b0 mm/util.c:543
 ksys_mmap_pgoff+0x42b/0x5b0 mm/mmap.c:1440
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe858e8c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe859c83168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fe858fabf80 RCX: 00007fe858e8c389
RDX: 000000000000000a RSI: 0000000000001000 RDI: 00000000208f1000
RBP: 00007fe859c831d0 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffdeeb2a45f R14: 00007fe859c83300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__page_table_check_zero+0x40a/0x5d0 mm/page_table_check.c:148
Code: 0f 84 f0 fc ff ff e8 05 20 a3 ff 48 83 eb 01 48 89 dd e9 ea fc ff ff e8 f4 1f a3 ff 0f 0b e8 ed 1f a3 ff 0f 0b e8 e6 1f a3 ff <0f> 0b e8 df 1f a3 ff 49 8b 6c 24 08 31 ff 48 89 eb 83 e3 01 48 89
RSP: 0018:ffffc9002084fae0 EFLAGS: 00010212
RAX: 000000000002214a RBX: 0000000000000001 RCX: ffffc90003771000
RDX: 0000000000040000 RSI: ffffffff81e0a8ea RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881004e6a90
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007fe859c83700(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc24000 CR3: 0000000115ae9000 CR4: 0000000000352ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400