------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:146! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 15259 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__page_table_check_zero+0x40c/0x5e0 mm/page_table_check.c:146 Code: fc ff ff e8 96 a3 99 ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 85 a3 99 ff 90 0f 0b e8 7d a3 99 ff 90 0f 0b e8 75 a3 99 ff 90 <0f> 0b e8 6d a3 99 ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc9000366fa68 EFLAGS: 00010287 RAX: 0000000000017760 RBX: 0000000000000001 RCX: ffffc90013002000 RDX: 0000000000040000 RSI: ffffffff81f41edb RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017884f80 R13: 0000000000000002 R14: ffff888017884fcc R15: dffffc0000000000 FS: 00007fe0f9fce6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff0912d66e4 CR3: 0000000066f70000 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:1142 [inline] free_unref_page_prepare+0x517/0xb10 mm/page_alloc.c:2347 free_unref_page+0x33/0x3c0 mm/page_alloc.c:2487 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+0x171e/0x2760 mm/mmap.c:2939 do_mmap+0x8ae/0xf10 mm/mmap.c:1385 vm_mmap_pgoff+0x1ab/0x3c0 mm/util.c:573 ksys_mmap_pgoff+0x425/0x5b0 mm/mmap.c:1431 __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+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0f927dea9 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:00007fe0f9fce0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fe0f93abf80 RCX: 00007fe0f927dea9 RDX: 000000000200000f RSI: 0000000000004000 RDI: 0000000020ff9000 RBP: 00007fe0f92ca4a4 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fe0f93abf80 R15: 00007fff33fae398 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__page_table_check_zero+0x40c/0x5e0 mm/page_table_check.c:146 Code: fc ff ff e8 96 a3 99 ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 85 a3 99 ff 90 0f 0b e8 7d a3 99 ff 90 0f 0b e8 75 a3 99 ff 90 <0f> 0b e8 6d a3 99 ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc9000366fa68 EFLAGS: 00010287 RAX: 0000000000017760 RBX: 0000000000000001 RCX: ffffc90013002000 RDX: 0000000000040000 RSI: ffffffff81f41edb RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017884f80 R13: 0000000000000002 R14: ffff888017884fcc R15: dffffc0000000000 FS: 00007fe0f9fce6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32825000 CR3: 0000000066f70000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400