------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:157! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5188 Comm: syz.0.7 Not tainted 6.10.0-syzkaller-11185-g2c9b3512402e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:__page_table_check_zero+0x2fd/0x360 mm/page_table_check.c:157 Code: ff 48 89 ef e8 c4 d0 ff ff 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 b1 e4 98 ff e8 ac e4 98 ff 90 0f 0b e8 a4 e4 98 ff 90 <0f> 0b e8 9c e4 98 ff 90 0f 0b e8 94 34 f5 ff e9 85 fd ff ff 48 c7 RSP: 0018:ffffc90003537ab8 EFLAGS: 00010283 RAX: 000000000001c7c7 RBX: 0000000000000001 RCX: ffffc9000a1bb000 RDX: 0000000000040000 RSI: ffffffff81f16c8c RDI: 0000000000000005 RBP: ffff88801608a5c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000002 R14: ffff88801608a60c R15: dffffc0000000000 FS: 00007fa6d2d576c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c390f78 CR3: 0000000023934000 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:1094 [inline] free_unref_page+0x659/0xe40 mm/page_alloc.c:2588 hcd_buffer_free_pages+0xe8/0x180 drivers/usb/core/buffer.c:210 dec_usb_memory_use_count+0x27b/0x410 drivers/usb/core/devio.c:198 mmap_region+0x15ee/0x2760 mm/mmap.c:3005 do_mmap+0xbc7/0xf60 mm/mmap.c:1397 vm_mmap_pgoff+0x1ba/0x360 mm/util.c:588 ksys_mmap_pgoff+0x332/0x5d0 mm/mmap.c:1443 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:79 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa6d1f75b59 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:00007fa6d2d57048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fa6d2105f60 RCX: 00007fa6d1f75b59 RDX: 000000000200000f RSI: 0000000000004000 RDI: 0000000020ff9000 RBP: 00007fa6d1fe4e5d R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa6d2105f60 R15: 00007ffc846723d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__page_table_check_zero+0x2fd/0x360 mm/page_table_check.c:157 Code: ff 48 89 ef e8 c4 d0 ff ff 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 b1 e4 98 ff e8 ac e4 98 ff 90 0f 0b e8 a4 e4 98 ff 90 <0f> 0b e8 9c e4 98 ff 90 0f 0b e8 94 34 f5 ff e9 85 fd ff ff 48 c7 RSP: 0018:ffffc90003537ab8 EFLAGS: 00010283 RAX: 000000000001c7c7 RBX: 0000000000000001 RCX: ffffc9000a1bb000 RDX: 0000000000040000 RSI: ffffffff81f16c8c RDI: 0000000000000005 RBP: ffff88801608a5c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000002 R14: ffff88801608a60c R15: dffffc0000000000 FS: 00007fa6d2d576c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c390f78 CR3: 0000000023934000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400