------------[ cut here ]------------
WARNING: CPU: 0 PID: 12571 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: 12571 Comm: syz.1.1933 Not tainted 6.12.0-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<819acd78>] (dump_backtrace) from [<819ace74>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82623184 r5:00000000 r4:82040a28
[<819ace5c>] (show_stack) from [<819cae9c>] (__dump_stack lib/dump_stack.c:94 [inline])
[<819ace5c>] (show_stack) from [<819cae9c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<819cae48>] (dump_stack_lvl) from [<819caedc>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82871d18
[<819caec4>] (dump_stack) from [<819ad9a0>] (panic+0x120/0x374 kernel/panic.c:354)
[<819ad880>] (panic) from [<802426d0>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<819ad880>] (panic) from [<802426d0>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c604 r2:00000001 r1:82028f94 r0:82030a60
 r7:8048f02c
[<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 r7:820586b0 r6:dff15d24 r5:85193000 r4:00000000
[<80242940>] (warn_slowpath_fmt) from [<8048f02c>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622)
 r10:ffefdfe8 r9:85091500 r8:20000000 r7:fffffff0 r6:00000003 r5:85193000
 r4:ffefd000
[<8048ee20>] (kunmap_local_indexed) from [<80508d40>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<8048ee20>] (kunmap_local_indexed) from [<80508d40>] (move_pages_pte mm/userfaultfd.c:1329 [inline])
[<8048ee20>] (kunmap_local_indexed) from [<80508d40>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1730)
 r7:fffffff0 r6:ee91375f r5:ded856ac r4:ffefb000
[<80508558>] (move_pages) from [<805871c8>] (userfaultfd_move fs/userfaultfd.c:1899 [inline])
[<80508558>] (move_pages) from [<805871c8>] (userfaultfd_ioctl+0x111c/0x2080 fs/userfaultfd.c:2022)
 r10:85091500 r9:dff15e98 r8:00000001 r7:21000000 r6:00000000 r5:20000040
 r4:84b4c080
[<805860ac>] (userfaultfd_ioctl) from [<80532cec>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<805860ac>] (userfaultfd_ioctl) from [<80532cec>] (do_vfs_ioctl fs/ioctl.c:860 [inline])
[<805860ac>] (userfaultfd_ioctl) from [<80532cec>] (__do_sys_ioctl fs/ioctl.c:904 [inline])
[<805860ac>] (userfaultfd_ioctl) from [<80532cec>] (sys_ioctl+0x138/0xd88 fs/ioctl.c:892)
 r10:85193000 r9:00000004 r8:853f9c00 r7:20000040 r6:853f9c01 r5:00000000
 r4:c028aa05
[<80532bb4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdff15fa8 to 0xdff15ff0)
5fa0:                   00000000 00000000 00000004 c028aa05 20000040 00000000
5fc0: 00000000 00000000 00286380 00000036 00000000 00006364 003d0f00 76b3d0bc
5fe0: 76b3cec0 76b3ceb0 00018af0 00133450
 r10:00000036 r9:85193000 r8:8020029c r7:00000036 r6:00286380 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..