------------[ cut here ]------------
WARNING: CPU: 0 PID: 24085 at mm/highmem.c:611 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 PID: 24085 Comm: syz.1.23967 Not tainted 6.10.0-rc6-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<818d4f38>] (dump_backtrace) from [<818d5034>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe1510
[<818d501c>] (show_stack) from [<818f269c>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d501c>] (show_stack) from [<818f269c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f2648>] (dump_stack_lvl) from [<818f26dc>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f26c4>] (dump_stack) from [<818d5adc>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d59bc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d59bc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fca17c r0:81fd1dd4
 r7:80480f00
[<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693)
[<80243f44>] (__warn) from [<8024423c>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:718)
 r8:00000009 r7:81ff8a54 r6:dfd05d14 r5:82e53000 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80480f00>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611)
 r10:ffefdfe8 r9:84266100 r8:20000000 r7:00000000 r6:00000003 r5:82e53000
 r4:ffefd000
[<80480cf4>] (kunmap_local_indexed) from [<804f28c4>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<80480cf4>] (kunmap_local_indexed) from [<804f28c4>] (move_pages_pte mm/userfaultfd.c:1332 [inline])
[<80480cf4>] (kunmap_local_indexed) from [<804f28c4>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1733)
 r7:00000000 r6:843ea7e0 r5:dee39718 r4:ffefb000
[<804f20dc>] (move_pages) from [<8056b0c8>] (userfaultfd_move fs/userfaultfd.c:2016 [inline])
[<804f20dc>] (move_pages) from [<8056b0c8>] (userfaultfd_ioctl+0x1278/0x2314 fs/userfaultfd.c:2134)
 r10:21000000 r9:dfd05e98 r8:20000040 r7:84266100 r6:00000001 r5:00000000
 r4:849cd400
[<80569e50>] (userfaultfd_ioctl) from [<8051a5c8>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80569e50>] (userfaultfd_ioctl) from [<8051a5c8>] (do_vfs_ioctl fs/ioctl.c:861 [inline])
[<80569e50>] (userfaultfd_ioctl) from [<8051a5c8>] (__do_sys_ioctl fs/ioctl.c:905 [inline])
[<80569e50>] (userfaultfd_ioctl) from [<8051a5c8>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893)
 r10:82e53000 r9:00000003 r8:85268900 r7:20000040 r6:85268901 r5:00000000
 r4:c028aa05
[<8051a494>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfd05fa8 to 0xdfd05ff0)
5fa0:                   00000000 00000000 00000003 c028aa05 20000040 00000000
5fc0: 00000000 00000000 002542e0 00000036 7ee64776 7ee64777 003d0f00 76bc80bc
5fe0: 76bc7ec8 76bc7eb8 00018374 00130460
 r10:00000036 r9:82e53000 r8:8020029c r7:00000036 r6:002542e0 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..