------------[ cut here ]------------
[   69.629773] WARNING: CPU: 1 PID: 581 at mm/highmem.c:622 kunmap_local_indexed+0x178/0x17c
[   69.632731] Modules linked in: fuse
[   69.634336] CPU: 1 UID: 0 PID: 581 Comm: uffd-unit-tests Not tainted 6.15.1-rc1 #1 NONE 
[   69.634934] Hardware name: Generic DT based system
[   69.635482] Call trace: 
[   69.636299]  unwind_backtrace from show_stack+0x18/0x1c
[   69.636956]  show_stack from dump_stack_lvl+0x6c/0x8c
[   69.637404]  dump_stack_lvl from __warn+0x84/0x130
[   69.638008]  __warn from warn_slowpath_fmt+0x18c/0x194
[   69.638427]  warn_slowpath_fmt from kunmap_local_indexed+0x178/0x17c
[   69.639177]  kunmap_local_indexed from move_pages+0x924/0x197c
[   69.639722]  move_pages from userfaultfd_ioctl+0x129c/0x2144
[   69.640086]  userfaultfd_ioctl from sys_ioctl+0x16c/0xce0
[   69.640490]  sys_ioctl from ret_fast_syscall+0x0/0x1c
[   69.640969] Exception stack(0xfa0e5fa8 to 0xfa0e5ff0)
[   69.641425] 5fa0:                   00001000 00000000 00000005 c028aa05 b2d8ecd8 b2d8ecb0
[   69.642291] 5fc0: 00001000 00000000 00000005 00000036 8010aa01 004c0000 b2d8ed80 00000012
[   69.642757] 5fe0: 00000036 b2d8ec98 b6e41861 b6daf736
[   69.643708] ---[ end trace 0000000000000000 ]---