RBP: 00007f2cc7bbf120 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000011012 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f2cc6f9bf80 R15: 00007fff08755a78 ------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:146! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 25184 Comm: syz-executor.2 Not tainted 6.7.0-rc3-next-20231201-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__page_table_check_zero+0x40c/0x5e0 mm/page_table_check.c:146 Code: fc ff ff e8 36 c7 9d ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 25 c7 9d ff 90 0f 0b e8 1d c7 9d ff 90 0f 0b e8 15 c7 9d ff 90 <0f> 0b e8 0d c7 9d ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc90004d4fa00 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90004ef1000 RDX: 0000000000040000 RSI: ffffffff81ea5ebb RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880184dc000 R13: 000000000000000a R14: ffff8880184dc04c R15: dffffc0000000000 FS: 00007f2cc7bbf6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c014f25000 CR3: 0000000068ee7000 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:1141 [inline] __free_pages_ok+0x63f/0xcc0 mm/page_alloc.c:1270 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:2087 [inline] mmap_region+0x745/0x2a90 mm/mmap.c:2816 do_mmap+0x890/0xef0 mm/mmap.c:1379 vm_mmap_pgoff+0x1a7/0x3c0 mm/util.c:556 ksys_mmap_pgoff+0x421/0x5a0 mm/mmap.c:1425 __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:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x62/0x6a RIP: 0033:0x7f2cc6e7cae9 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:00007f2cc7bbf0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f2cc6f9bf80 RCX: 00007f2cc6e7cae9 RDX: 0000000001000002 RSI: 0000000000400000 RDI: 0000000020000000 RBP: 00007f2cc7bbf120 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000011012 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f2cc6f9bf80 R15: 00007fff08755a78 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 36 c7 9d ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 25 c7 9d ff 90 0f 0b e8 1d c7 9d ff 90 0f 0b e8 15 c7 9d ff 90 <0f> 0b e8 0d c7 9d ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc90004d4fa00 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90004ef1000 RDX: 0000000000040000 RSI: ffffffff81ea5ebb RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880184dc000 R13: 000000000000000a R14: ffff8880184dc04c R15: dffffc0000000000 FS: 00007f2cc7bbf6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e521000 CR3: 0000000068ee7000 CR4: 00000000003526f0