------------[ cut here ]------------
WARNING: CPU: 0 PID: 10469 at mm/highmem.c:622 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 10469 Comm: syz.1.1828 Not tainted 6.12.0-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<819be5f8>] (dump_backtrace) from [<819be6f4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82623304 r5:00000000 r4:82043260
[<819be6dc>] (show_stack) from [<819dc71c>] (__dump_stack lib/dump_stack.c:94 [inline])
[<819be6dc>] (show_stack) from [<819dc71c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<819dc6c8>] (dump_stack_lvl) from [<819dc75c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82871d18
[<819dc744>] (dump_stack) from [<819bf220>] (panic+0x120/0x374 kernel/panic.c:354)
[<819bf100>] (panic) from [<802426d0>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<819bf100>] (panic) from [<802426d0>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c604 r2:00000001 r1:8202b7cc r0:82033298
 r7:804912d0
[<8024265c>] (check_panic_on_warn) from [<80242834>] (__warn+0x80/0x188 kernel/panic.c:748)
[<802427b4>] (__warn) from [<80242ab4>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:775)
 r8:00000009 r7:8205af38 r6:dfa4dd24 r5:840e9800 r4:00000000
[<80242940>] (warn_slowpath_fmt) from [<804912d0>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622)
 r10:ffefdfe8 r9:83e18f00 r8:20000000 r7:fffffff0 r6:00000003 r5:840e9800
 r4:ffefd000
[<804910c4>] (kunmap_local_indexed) from [<8050afe0>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<804910c4>] (kunmap_local_indexed) from [<8050afe0>] (move_pages_pte mm/userfaultfd.c:1329 [inline])
[<804910c4>] (kunmap_local_indexed) from [<8050afe0>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1730)
 r7:fffffff0 r6:e33fe75f r5:debedfb8 r4:ffefb000
[<8050a7f8>] (move_pages) from [<80589510>] (userfaultfd_move fs/userfaultfd.c:1899 [inline])
[<8050a7f8>] (move_pages) from [<80589510>] (userfaultfd_ioctl+0x111c/0x2080 fs/userfaultfd.c:2022)
 r10:83e18f00 r9:dfa4de98 r8:00000001 r7:21000000 r6:00000000 r5:20000040
 r4:84420000
[<805883f4>] (userfaultfd_ioctl) from [<80534f8c>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<805883f4>] (userfaultfd_ioctl) from [<80534f8c>] (do_vfs_ioctl fs/ioctl.c:860 [inline])
[<805883f4>] (userfaultfd_ioctl) from [<80534f8c>] (__do_sys_ioctl fs/ioctl.c:904 [inline])
[<805883f4>] (userfaultfd_ioctl) from [<80534f8c>] (sys_ioctl+0x138/0xd88 fs/ioctl.c:892)
 r10:840e9800 r9:00000003 r8:85a3ae40 r7:20000040 r6:85a3ae41 r5:00000000
 r4:c028aa05
[<80534e54>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfa4dfa8 to 0xdfa4dff0)
dfa0:                   00000000 00000000 00000003 c028aa05 20000040 00000000
dfc0: 00000000 00000000 00286380 00000036 00000000 00006364 003d0f00 76b7f0bc
dfe0: 76b7eec0 76b7eeb0 00018af0 00133450
 r10:00000036 r9:840e9800 r8:8020029c r7:00000036 r6:00286380 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..