------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:146! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 7229 Comm: syz-executor.1 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__page_table_check_zero+0x25c/0x340 mm/page_table_check.c:146 Code: c1 0f 8c 51 fe ff ff 48 89 df e8 6f 32 f4 ff e9 44 fe ff ff e8 a5 23 8f ff 90 0f 0b e8 9d 23 8f ff 90 0f 0b e8 95 23 8f ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 5d 28 8f RSP: 0018:ffffc90004a57940 EFLAGS: 00010287 RAX: ffffffff82066a1b RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9000e63d000 RSI: 0000000000003e98 RDI: 0000000000003e99 RBP: ffff888017dbf57c R08: ffff888017dbf57f R09: 1ffff11002fb7eaf R10: dffffc0000000000 R11: ffffed1002fb7eb0 R12: ffff888017dbf530 R13: 1ffffffff28fb154 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f23a0d716c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa7aa8d56c6 CR3: 000000002dff8000 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:1111 [inline] free_unref_page+0xd50/0xec0 mm/page_alloc.c:2617 dec_usb_memory_use_count+0x259/0x350 drivers/usb/core/devio.c:198 mmap_region+0x137b/0x2020 mm/mmap.c:2984 do_mmap+0x8ad/0xf70 mm/mmap.c:1387 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:573 ksys_mmap_pgoff+0x504/0x6e0 mm/mmap.c:1433 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7f23a007de69 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:00007f23a0d710c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f23a01abf80 RCX: 00007f23a007de69 RDX: 00000000ffffff1f RSI: 0000000000001000 RDI: 0000000020000000 RBP: 00007f23a00ca47a R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f23a01abf80 R15: 00007fff98b6de48 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__page_table_check_zero+0x25c/0x340 mm/page_table_check.c:146 Code: c1 0f 8c 51 fe ff ff 48 89 df e8 6f 32 f4 ff e9 44 fe ff ff e8 a5 23 8f ff 90 0f 0b e8 9d 23 8f ff 90 0f 0b e8 95 23 8f ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 5d 28 8f RSP: 0018:ffffc90004a57940 EFLAGS: 00010287 RAX: ffffffff82066a1b RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9000e63d000 RSI: 0000000000003e98 RDI: 0000000000003e99 RBP: ffff888017dbf57c R08: ffff888017dbf57f R09: 1ffff11002fb7eaf R10: dffffc0000000000 R11: ffffed1002fb7eb0 R12: ffff888017dbf530 R13: 1ffffffff28fb154 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f23a0d716c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2b8a1d4000 CR3: 000000002dff8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000