RBP: 00007f9ef6d57120 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000011012 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f9ef619bf80 R15: 00007fff5a4cdf68 ------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:146! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8684 Comm: syz-executor.0 Not tainted 6.6.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:__page_table_check_zero+0x409/0x5e0 mm/page_table_check.c:146 Code: 0f 84 f1 fc ff ff e8 a6 71 9f ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 95 71 9f ff 0f 0b e8 8e 71 9f ff 0f 0b e8 87 71 9f ff <0f> 0b e8 80 71 9f ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc90015acfa20 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90004761000 RDX: 0000000000040000 RSI: ffffffff81e858b9 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017568000 R13: 000000000000000a R14: ffff888017568044 R15: dffffc0000000000 FS: 00007f9ef6d576c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4070b75198 CR3: 000000001ec74000 CR4: 0000000000350ee0 Call Trace: page_table_check_free include/linux/page_table_check.h:41 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] __free_pages_ok+0x583/0xbf0 mm/page_alloc.c:1266 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 usbdev_mmap+0x816/0xb20 drivers/usb/core/devio.c:285 call_mmap include/linux/fs.h:1961 [inline] mmap_region+0x6b9/0x28b0 mm/mmap.c:2754 do_mmap+0x893/0xef0 mm/mmap.c:1354 vm_mmap_pgoff+0x1a8/0x3b0 mm/util.c:546 ksys_mmap_pgoff+0x422/0x5b0 mm/mmap.c:1400 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:86 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9ef607cae9 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:00007f9ef6d570c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f9ef619bf80 RCX: 00007f9ef607cae9 RDX: 0000000001000002 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007f9ef6d57120 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000011012 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f9ef619bf80 R15: 00007fff5a4cdf68 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__page_table_check_zero+0x409/0x5e0 mm/page_table_check.c:146 Code: 0f 84 f1 fc ff ff e8 a6 71 9f ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 95 71 9f ff 0f 0b e8 8e 71 9f ff 0f 0b e8 87 71 9f ff <0f> 0b e8 80 71 9f ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc90015acfa20 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90004761000 RDX: 0000000000040000 RSI: ffffffff81e858b9 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017568000 R13: 000000000000000a R14: ffff888017568044 R15: dffffc0000000000 FS: 00007f9ef6d576c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4070b75198 CR3: 000000001ec74000 CR4: 0000000000350ee0