------------[ cut here ]------------
WARNING: CPU: 1 PID: 4630 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: 1 PID: 4630 Comm: syz-executor.1 Not tainted 6.9.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<818a225c>] (dump_backtrace) from [<818a2358>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fcee54
[<818a2340>] (show_stack) from [<818bfa94>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818a2340>] (show_stack) from [<818bfa94>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818bfa40>] (dump_stack_lvl) from [<818bfad4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285ad18
[<818bfabc>] (dump_stack) from [<818a2e00>] (panic+0x120/0x358 kernel/panic.c:348)
[<818a2ce0>] (panic) from [<802438ec>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<818a2ce0>] (panic) from [<802438ec>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fb7b80 r0:81fbf724
 r7:8047a074
[<80243878>] (check_panic_on_warn) from [<80243ae0>] (__warn+0x7c/0x180 kernel/panic.c:694)
[<80243a64>] (__warn) from [<80243d5c>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:719)
 r8:00000009 r7:81fe6008 r6:dfb1dd0c r5:84552400 r4:00000000
[<80243be8>] (warn_slowpath_fmt) from [<8047a074>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611)
 r10:8438a400 r9:8444d120 r8:8456f830 r7:ffedc0a8 r6:00000003 r5:84552400
 r4:ffedc000
[<80479e68>] (kunmap_local_indexed) from [<804e8ed8>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<80479e68>] (kunmap_local_indexed) from [<804e8ed8>] (move_pages_pte mm/userfaultfd.c:1300 [inline])
[<80479e68>] (kunmap_local_indexed) from [<804e8ed8>] (move_pages+0x7bc/0x13c4 mm/userfaultfd.c:1701)
 r7:ffedc0a8 r6:00000000 r5:fffffffe r4:ffeda840
[<804e871c>] (move_pages) from [<805616fc>] (userfaultfd_move fs/userfaultfd.c:2008 [inline])
[<804e871c>] (move_pages) from [<805616fc>] (userfaultfd_ioctl+0x117c/0x20b8 fs/userfaultfd.c:2126)
 r10:20c16000 r9:dfb1de98 r8:20000080 r7:8438a400 r6:00000001 r5:00000000
 r4:8589d000
[<80560580>] (userfaultfd_ioctl) from [<80510088>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80560580>] (userfaultfd_ioctl) from [<80510088>] (do_vfs_ioctl fs/ioctl.c:858 [inline])
[<80560580>] (userfaultfd_ioctl) from [<80510088>] (__do_sys_ioctl fs/ioctl.c:902 [inline])
[<80560580>] (userfaultfd_ioctl) from [<80510088>] (sys_ioctl+0x118/0xc1c fs/ioctl.c:890)
 r10:84dd6180 r9:84552400 r8:00000003 r7:20000080 r6:84dd6181 r5:00000000
 r4:c028aa05
[<8050ff70>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66)
Exception stack(0xdfb1dfa8 to 0xdfb1dff0)
dfa0:                   00000000 00000000 00000003 c028aa05 20000080 00000000
dfc0: 00000000 00000000 0014c2c8 00000036 7eed632e 7eed632f 003d0f00 76b730fc
dfe0: 76b72f08 76b72ef8 00016ab0 00050bf0
 r10:00000036 r9:84552400 r8:80200288 r7:00000036 r6:0014c2c8 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..