------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:148! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 11595 Comm: syz-executor.2 Not tainted 6.9.0-next-20240523-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__page_table_check_zero+0x25c/0x340 mm/page_table_check.c:148 Code: c1 0f 8c 51 fe ff ff 48 89 df e8 af 3f f4 ff e9 44 fe ff ff e8 75 6b 8e ff 90 0f 0b e8 6d 6b 8e ff 90 0f 0b e8 65 6b 8e ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 2d 70 8e RSP: 0018:ffffc9000345f938 EFLAGS: 00010283 RAX: ffffffff8207d80b RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9001087e000 RSI: 0000000000005a9d RDI: 0000000000005a9e RBP: ffff888017a7eb0c R08: ffff888017a7eb0f R09: 1ffff11002f4fd61 R10: dffffc0000000000 R11: ffffed1002f4fd62 R12: ffff888017a7eac0 R13: 1ffffffff29037e0 R14: 0000000000000002 R15: 0000000000000000 FS: 00007fe89148d6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31c21000 CR3: 000000002aba6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_table_check_free include/linux/page_table_check.h:41 [inline] free_pages_prepare mm/page_alloc.c:1089 [inline] free_unref_page+0xd36/0xea0 mm/page_alloc.c:2601 dec_usb_memory_use_count+0x259/0x350 drivers/usb/core/devio.c:198 mmap_region+0x13b4/0x2090 mm/mmap.c:3005 do_mmap+0x8ad/0xfa0 mm/mmap.c:1397 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1443 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: 0033:0x7fe89067cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe89148d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fe8907abf80 RCX: 00007fe89067cee9 RDX: 000000000200000f RSI: 0000000000004000 RDI: 0000000020ff9000 RBP: 00007fe8906c949e R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000012 R1