------------[ cut here ]------------
WARNING: CPU: 1 PID: 4586 at mm/highmem.c:611 kunmap_local_indexed+0x210/0x228 mm/highmem.c:611
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 PID: 4586 Comm: syz.1.156 Not tainted 6.10.0-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<818ea4a0>] (dump_backtrace) from [<818ea59c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622804 r5:00000000 r4:81fe7c44
[<818ea584>] (show_stack) from [<81907be4>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818ea584>] (show_stack) from [<81907be4>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<81907b90>] (dump_stack_lvl) from [<81907c24>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:82861d0c
[<81907c0c>] (dump_stack) from [<818eb044>] (panic+0x120/0x358 kernel/panic.c:347)
[<818eaf24>] (panic) from [<80241f54>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818eaf24>] (panic) from [<80241f54>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fd0d30 r0:81fd83b8
 r7:80481258
[<80241ee0>] (check_panic_on_warn) from [<80242148>] (__warn+0x7c/0x180 kernel/panic.c:693)
[<802420cc>] (__warn) from [<802423c4>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:718)
 r8:00000009 r7:81fff3b8 r6:dfa11d14 r5:850b0c00 r4:00000000
[<80242250>] (warn_slowpath_fmt) from [<80481258>] (kunmap_local_indexed+0x210/0x228 mm/highmem.c:611)
 r10:ffedcfe8 r9:84106100 r8:20000000 r7:00000000 r6:00000003 r5:850b0c00
 r4:ffedc000
[<80481048>] (kunmap_local_indexed) from [<804f311c>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<80481048>] (kunmap_local_indexed) from [<804f311c>] (move_pages_pte mm/userfaultfd.c:1332 [inline])
[<80481048>] (kunmap_local_indexed) from [<804f311c>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1733)
 r7:00000000 r6:84410060 r5:dee47ae8 r4:ffeda000
[<804f2934>] (move_pages) from [<8056ceec>] (userfaultfd_move fs/userfaultfd.c:2016 [inline])
[<804f2934>] (move_pages) from [<8056ceec>] (userfaultfd_ioctl+0x125c/0x2310 fs/userfaultfd.c:2139)
 r10:21000000 r9:dfa11e98 r8:20000040 r7:84106100 r6:00000001 r5:00000000
 r4:854c2000
[<8056bc90>] (userfaultfd_ioctl) from [<8051b0a0>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<8056bc90>] (userfaultfd_ioctl) from [<8051b0a0>] (do_vfs_ioctl fs/ioctl.c:861 [inline])
[<8056bc90>] (userfaultfd_ioctl) from [<8051b0a0>] (__do_sys_ioctl fs/ioctl.c:905 [inline])
[<8056bc90>] (userfaultfd_ioctl) from [<8051b0a0>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893)
 r10:850b0c00 r9:00000003 r8:849c1480 r7:20000040 r6:849c1481 r5:00000000
 r4:c028aa05
[<8051af6c>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfa11fa8 to 0xdfa11ff0)
1fa0:                   00000000 00000000 00000003 c028aa05 20000040 00000000
1fc0: 00000000 00000000 002662e0 00000036 7e810766 7e810767 003d0f00 76bc50bc
1fe0: 76bc4ec8 76bc4eb8 00018444 001306b0
 r10:00000036 r9:850b0c00 r8:8020029c r7:00000036 r6:002662e0 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..