------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:146! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 6164 Comm: syz-executor131 Tainted: G B 6.8.0-rc5-syzkaller-g9abbc24128bc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __page_table_check_zero+0x280/0x2bc mm/page_table_check.c:146 lr : __page_table_check_zero+0x280/0x2bc mm/page_table_check.c:146 sp : ffff8000978a7640 x29: ffff8000978a7640 x28: ffff800093481000 x27: 0000000000000000 x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000c0744004 x23: 1ffff00012690338 x22: dfff800000000000 x21: 000000000000000a x20: ffff0000c0744000 x19: 000000000000000a x18: 0000000000000000 x17: ffff8000808539ec x16: ffff80008ad5ac80 x15: 0000000000000001 x14: 1fffe000180e8800 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000180e8801 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d9e60000 x7 : 0000000000000000 x6 : ffff800080a9d0ec x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080a9d558 x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __page_table_check_zero+0x280/0x2bc mm/page_table_check.c:146 page_table_check_free include/linux/page_table_check.h:41 [inline] free_pages_prepare mm/page_alloc.c:1141 [inline] __free_pages_ok+0xbec/0xcf4 mm/page_alloc.c:1269 free_the_page mm/page_alloc.c:565 [inline] __free_pages+0x1c8/0x1cc mm/page_alloc.c:4653 free_pages+0xa4/0xbc mm/page_alloc.c:4664 hcd_buffer_free_pages+0xf0/0x15c drivers/usb/core/buffer.c:210 dec_usb_memory_use_count+0x250/0x330 drivers/usb/core/devio.c:198 usbdev_vm_close+0x44/0x54 drivers/usb/core/devio.c:222 mmap_region+0x1018/0x1a28 mm/mmap.c:2952 do_mmap+0x9f4/0xff4 mm/mmap.c:1382 vm_mmap_pgoff+0x1a0/0x3d4 mm/util.c:556 ksys_mmap_pgoff+0x3c8/0x5b0 mm/mmap.c:1428 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: d4210000 97ea2dc9 d4210000 97ea2dc7 (d4210000) ---[ end trace 0000000000000000 ]---