------------[ 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: 6159 Comm: syz.3.187 Not tainted 6.11.0-rc2-syzkaller-00011-geb5e56d14912 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 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 07 c1 f4 ff e9 2c fe ff ff e8 9d 87 8d ff 90 0f 0b e8 95 87 8d ff 90 0f 0b e8 8d 87 8d ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 55 8c 8d RSP: 0018:ffffc90008ee7938 EFLAGS: 00010287 RAX: ffffffff8205ef63 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9000a3e0000 RSI: 0000000000001998 RDI: 0000000000001999 RBP: ffff8880198ddbcc R08: ffff8880198ddbcf R09: 1ffff1100331bb79 R10: dffffc0000000000 R11: ffffed100331bb7a R12: ffff8880198ddb80 R13: 1ffffffff29f2368 R14: 0000000000000003 R15: 0000000000000000 FS: 00007fc3f700b6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000200 CR3: 000000006eb14000 CR4: 00000000003526f0 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_unref_page+0xd36/0xea0 mm/page_alloc.c:2612 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: 0033:0x7fc3f61779f9 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:00007fc3f700b048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fc3f6305f80 RCX: 00007fc3f61779f9 RDX: 0000000000000007 RSI: 0000000000005000 RDI: 0000000020371000 RBP: 00007fc3f61e58ee R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fc3f6305f80 R15: 00007fc3f642fa38 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 07 c1 f4 ff e9 2c fe ff ff e8 9d 87 8d ff 90 0f 0b e8 95 87 8d ff 90 0f 0b e8 8d 87 8d ff 90 <0f> 0b f3 0f 1e fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 55 8c 8d RSP: 0018:ffffc90008ee7938 EFLAGS: 00010287 RAX: ffffffff8205ef63 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc9000a3e0000 RSI: 0000000000001998 RDI: 0000000000001999 RBP: ffff8880198ddbcc R08: ffff8880198ddbcf R09: 1ffff1100331bb79 R10: dffffc0000000000 R11: ffffed100331bb7a R12: ffff8880198ddb80 R13: 1ffffffff29f2368 R14: 0000000000000003 R15: 0000000000000000 FS: 00007fc3f700b6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000200 CR3: 000000006eb14000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400