------------[ cut here ]------------
WARNING: CPU: 0 PID: 11517 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: 11517 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<818a217c>] (dump_backtrace) from [<818a2278>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622e44 r5:00000000 r4:81fcee68
[<818a2260>] (show_stack) from [<818bf9b4>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818a2260>] (show_stack) from [<818bf9b4>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818bf960>] (dump_stack_lvl) from [<818bf9f4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285ad18
[<818bf9dc>] (dump_stack) from [<818a2d20>] (panic+0x120/0x358 kernel/panic.c:348)
[<818a2c00>] (panic) from [<802438ec>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<818a2c00>] (panic) from [<802438ec>] (print_tainted+0x0/0xa0 kernel/panic.c:236)
 r3:8260c584 r2:00000001 r1:81fb7b94 r0:81fbf738
 r7:80479fcc
[<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 r7:81fe601c r6:dfd5dd0c r5:84856000 r4:00000000
[<80243be8>] (warn_slowpath_fmt) from [<80479fcc>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611)
 r10:84135b00 r9:defd3cd0 r8:854ef32c r7:ffefde20 r6:00000003 r5:84856000
 r4:ffefd000
[<80479dc0>] (kunmap_local_indexed) from [<804e8d64>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<80479dc0>] (kunmap_local_indexed) from [<804e8d64>] (move_pages_pte mm/userfaultfd.c:1300 [inline])
[<80479dc0>] (kunmap_local_indexed) from [<804e8d64>] (move_pages+0x7bc/0x13c0 mm/userfaultfd.c:1701)
 r7:ffefde20 r6:debd08a0 r5:00000000 r4:ffefb000
[<804e85a8>] (move_pages) from [<80561594>] (userfaultfd_move fs/userfaultfd.c:2008 [inline])
[<804e85a8>] (move_pages) from [<80561594>] (userfaultfd_ioctl+0x117c/0x20b8 fs/userfaultfd.c:2126)
 r10:201c7000 r9:dfd5de98 r8:20000000 r7:84135b00 r6:00000001 r5:00000000
 r4:855b9000
[<80560418>] (userfaultfd_ioctl) from [<8050ff14>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80560418>] (userfaultfd_ioctl) from [<8050ff14>] (do_vfs_ioctl fs/ioctl.c:858 [inline])
[<80560418>] (userfaultfd_ioctl) from [<8050ff14>] (__do_sys_ioctl fs/ioctl.c:902 [inline])
[<80560418>] (userfaultfd_ioctl) from [<8050ff14>] (sys_ioctl+0x118/0xc24 fs/ioctl.c:890)
 r10:849da780 r9:84856000 r8:00000006 r7:20000000 r6:849da781 r5:00000000
 r4:c028aa05
[<8050fdfc>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66)
Exception stack(0xdfd5dfa8 to 0xdfd5dff0)
dfa0:                   00000000 00000000 00000006 c028aa05 20000000 00000000
dfc0: 00000000 00000000 0014c2c8 00000036 7ea2532e 7ea2532f 003d0f00 76b5f0fc
dfe0: 76b5ef08 76b5eef8 00016ab0 00050bf0
 r10:00000036 r9:84856000 r8:80200288 r7:00000036 r6:0014c2c8 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..