------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:146! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 11558 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #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 e6 c0 9a ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 d5 c0 9a ff 90 0f 0b e8 cd c0 9a ff 90 0f 0b e8 c5 c0 9a ff 90 <0f> 0b e8 bd c0 9a ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc900045a7a50 EFLAGS: 00010287 RAX: 0000000000012b8b RBX: 0000000000000001 RCX: ffffc9000ea48000 RDX: 0000000000040000 RSI: ffffffff81f237eb RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801791b2a0 R13: 0000000000000000 R14: ffff88801791b2ec R15: dffffc0000000000 FS: 00007f8a30e486c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc0c184258 CR3: 00000000297a6000 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:1141 [inline] free_unref_page_prepare+0x517/0xb10 mm/page_alloc.c:2346 free_unref_page+0x33/0x3c0 mm/page_alloc.c:2486 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+0x188c/0x2aa0 mm/mmap.c:2957 do_mmap+0x8ae/0xf10 mm/mmap.c:1387 vm_mmap_pgoff+0x1ab/0x3c0 mm/util.c:573 ksys_mmap_pgoff+0x425/0x5b0 mm/mmap.c:1433 __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+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f8a3007de69 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:00007f8a30e480c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f8a301abf80 RCX: 00007f8a3007de69 RDX: 00000000ffffff1f RSI: 0000000000001000 RDI: 0000000020000000 RBP: 00007f8a300ca47a R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8a301abf80 R15: 00007ffe5b206e38 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 e6 c0 9a ff 48 83 ed 01 49 89 ec e9 eb fc ff ff e8 d5 c0 9a ff 90 0f 0b e8 cd c0 9a ff 90 0f 0b e8 c5 c0 9a ff 90 <0f> 0b e8 bd c0 9a ff 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 48 89 ee RSP: 0018:ffffc900045a7a50 EFLAGS: 00010287 RAX: 0000000000012b8b RBX: 0000000000000001 RCX: ffffc9000ea48000 RDX: 0000000000040000 RSI: ffffffff81f237eb RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801791b2a0 R13: 0000000000000000 R14: ffff88801791b2ec R15: dffffc0000000000 FS: 00007f8a30e486c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563bba46a300 CR3: 00000000297a6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400