syzbot

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kernel BUG at mm/page_table_check.c:157!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 25991 Comm: syz.2.5898 Not tainted 6.12.0-rc6-syzkaller-00077-g2e1b3cc9d7f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__page_table_check_zero+0x274/0x350 mm/page_table_check.c:157
Code: c1 0f 8c 39 fe ff ff 48 89 df e8 87 28 f3 ff e9 2c fe ff ff e8 3d 86 8c ff 90 0f 0b e8 35 86 8c ff 90 0f 0b e8 2d 86 8c ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 f5 8a 8c
RSP: 0018:ffffc900047076e0 EFLAGS: 00010293
RAX: ffffffff820853d3 RBX: dffffc0000000000 RCX: ffff888020b0bc00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801c9f404c
RBP: ffff88801c9f404c R08: ffff88801c9f404f R09: 1ffff1100393e809
R10: dffffc0000000000 R11: ffffed100393e80a R12: ffff88801c9f4000
R13: 1ffffffff3481db4 R14: 000000000000000a R15: 0000000000000000
FS:  00007efe273c76c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056418c62c088 CR3: 0000000034554000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 page_table_check_free include/linux/page_table_check.h:41 [inline]
 free_pages_prepare mm/page_alloc.c:1109 [inline]
 __free_pages_ok+0xaa5/0xc70 mm/page_alloc.c:1250
 dec_usb_memory_use_count+0x259/0x350 drivers/usb/core/devio.c:198
 mmap_region+0x2073/0x2940 mm/mmap.c:1577
 do_mmap+0x8f0/0x1000 mm/mmap.c:496
 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
 ksys_mmap_pgoff+0x4eb/0x720 mm/mmap.c:542
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe2657e719
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:00007efe273c7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007efe26736130 RCX: 00007efe2657e719
RDX: 000000000000000f RSI: 0000000000400000 RDI: 0000000020000000
RBP: 00007efe265f139e R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000011012 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efe26736130 R15: 00007ffdc7076b28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__page_table_check_zero+0x274/0x350 mm/page_table_check.c:157
Code: c1 0f 8c 39 fe ff ff 48 89 df e8 87 28 f3 ff e9 2c fe ff ff e8 3d 86 8c ff 90 0f 0b e8 35 86 8c ff 90 0f 0b e8 2d 86 8c ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 f5 8a 8c
RSP: 0018:ffffc900047076e0 EFLAGS: 00010293
RAX: ffffffff820853d3 RBX: dffffc0000000000 RCX: ffff888020b0bc00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801c9f404c
RBP: ffff88801c9f404c R08: ffff88801c9f404f R09: 1ffff1100393e809
R10: dffffc0000000000 R11: ffffed100393e80a R12: ffff88801c9f4000
R13: 1ffffffff3481db4 R14: 000000000000000a R15: 0000000000000000
FS:  00007efe273c76c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f28ab667d60 CR3: 0000000034554000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400