------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:157! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 11199 Comm: syz.2.1233 Not tainted 6.11.0-rc5-syzkaller-00057-g86987d84b968 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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 a7 c4 f4 ff e9 2c fe ff ff e8 fd 81 8d ff 90 0f 0b e8 f5 81 8d ff 90 0f 0b e8 ed 81 8d ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 b5 86 8d RSP: 0018:ffffc90008ed7938 EFLAGS: 00010283 RAX: ffffffff82060a43 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9001027a000 RSI: 000000000000bfc7 RDI: 000000000000bfc8 RBP: ffff88801897c04c R08: ffff88801897c04f R09: 1ffff1100312f809 R10: dffffc0000000000 R11: ffffed100312f80a R12: ffff88801897c000 R13: 1ffffffff29f3328 R14: 000000000000000a R15: 0000000000000000 FS: 00007f80bdc286c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002005f000 CR3: 0000000058d32000 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:1095 [inline] __free_pages_ok+0xb62/0xcc0 mm/page_alloc.c:1214 dec_usb_memory_use_count+0x259/0x350 drivers/usb/core/devio.c:198 mmap_region+0x13b4/0x2090 mm/mmap.c:3076 do_mmap+0x8f9/0x1010 mm/mmap.c:1468 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514 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: 0033:0x7f80bcd79ef9 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:00007f80bdc28038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f80bcf15f80 RCX: 00007f80bcd79ef9 RDX: 0000000001000016 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007f80bcde793e R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000011012 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f80bcf15f80 R15: 00007f80bd03fa28 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 a7 c4 f4 ff e9 2c fe ff ff e8 fd 81 8d ff 90 0f 0b e8 f5 81 8d ff 90 0f 0b e8 ed 81 8d ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 b5 86 8d RSP: 0018:ffffc90008ed7938 EFLAGS: 00010283 RAX: ffffffff82060a43 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9001027a000 RSI: 000000000000bfc7 RDI: 000000000000bfc8 RBP: ffff88801897c04c R08: ffff88801897c04f R09: 1ffff1100312f809 R10: dffffc0000000000 R11: ffffed100312f80a R12: ffff88801897c000 R13: 1ffffffff29f3328 R14: 000000000000000a R15: 0000000000000000 FS: 00007f80bdc286c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002007f000 CR3: 0000000058d32000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400