------------[ 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: 5594 Comm: syz-executor.0 Not tainted 6.11.0-rc5-syzkaller-g5be63fc19fca #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 82 8d ff 90 0f 0b e8 f5 82 8d ff 90 0f 0b e8 ed 82 8d ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 b5 87 8d RSP: 0018:ffffc90004007938 EFLAGS: 00010293 RAX: ffffffff82060b23 RBX: dffffc0000000000 RCX: ffff888026500000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801926c04c RBP: ffff88801926c04c R08: ffff88801926c04f R09: 1ffff1100324d809 R10: dffffc0000000000 R11: ffffed100324d80a R12: ffff88801926c000 R13: 1ffffffff29f3328 R14: 000000000000000a R15: 0000000000000000 FS: 00007fbca190c6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd17fa9dec CR3: 000000007bbca000 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: 0033:0x7fbca0c7dda9 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:00007fbca190c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fbca0dabf80 RCX: 00007fbca0c7dda9 RDX: 0000000002000007 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007fbca0cca47a R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fbca0dabf80 R15: 00007ffe2e4ce6a8 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 82 8d ff 90 0f 0b e8 f5 82 8d ff 90 0f 0b e8 ed 82 8d ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 b5 87 8d RSP: 0018:ffffc90004007938 EFLAGS: 00010293 RAX: ffffffff82060b23 RBX: dffffc0000000000 RCX: ffff888026500000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801926c04c RBP: ffff88801926c04c R08: ffff88801926c04f R09: 1ffff1100324d809 R10: dffffc0000000000 R11: ffffed100324d80a R12: ffff88801926c000 R13: 1ffffffff29f3328 R14: 000000000000000a R15: 0000000000000000 FS: 00007fbca190c6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056237072b950 CR3: 000000007bbca000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400