------------[ cut here ]------------
WARNING: CPU: 1 PID: 5642 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: 5642 Comm: syz.1.579 Not tainted 6.10.0-rc7-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<818d6078>] (dump_backtrace) from [<818d6174>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622d44 r5:00000000 r4:81fe1c70
[<818d615c>] (show_stack) from [<818f37dc>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818d615c>] (show_stack) from [<818f37dc>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114)
[<818f3788>] (dump_stack_lvl) from [<818f381c>] (dump_stack+0x18/0x1c lib/dump_stack.c:123)
 r5:00000000 r4:8285fd18
[<818f3804>] (dump_stack) from [<818d6c1c>] (panic+0x120/0x358 kernel/panic.c:347)
[<818d6afc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline])
[<818d6afc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235)
 r3:8260c5c4 r2:00000001 r1:81fca8dc r0:81fd2534
 r7:80481248
[<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 r7:81ff91b4 r6:df9c1d14 r5:8452d400 r4:00000000
[<802440c8>] (warn_slowpath_fmt) from [<80481248>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611)
 r10:ffedc0a8 r9:84101e00 r8:20508000 r7:fffffffe r6:00000003 r5:8452d400
 r4:ffedc000
[<8048103c>] (kunmap_local_indexed) from [<804f2cbc>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<8048103c>] (kunmap_local_indexed) from [<804f2cbc>] (move_pages_pte mm/userfaultfd.c:1332 [inline])
[<8048103c>] (kunmap_local_indexed) from [<804f2cbc>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1733)
 r7:fffffffe r6:00000000 r5:848da810 r4:ffeda840
[<804f24d4>] (move_pages) from [<8056b534>] (userfaultfd_move fs/userfaultfd.c:2016 [inline])
[<804f24d4>] (move_pages) from [<8056b534>] (userfaultfd_ioctl+0x125c/0x2310 fs/userfaultfd.c:2139)
 r10:20c16000 r9:df9c1e98 r8:20000080 r7:84101e00 r6:00000001 r5:00000000
 r4:848dc000
[<8056a2d8>] (userfaultfd_ioctl) from [<8051aa38>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<8056a2d8>] (userfaultfd_ioctl) from [<8051aa38>] (do_vfs_ioctl fs/ioctl.c:861 [inline])
[<8056a2d8>] (userfaultfd_ioctl) from [<8051aa38>] (__do_sys_ioctl fs/ioctl.c:905 [inline])
[<8056a2d8>] (userfaultfd_ioctl) from [<8051aa38>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893)
 r10:8452d400 r9:00000007 r8:84a766c0 r7:20000080 r6:84a766c1 r5:00000000
 r4:c028aa05
[<8051a904>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdf9c1fa8 to 0xdf9c1ff0)
1fa0:                   00000000 00000000 00000007 c028aa05 20000080 00000000
1fc0: 00000000 00000000 002642e0 00000036 7eaf2766 7eaf2767 003d0f00 76b340bc
1fe0: 76b33ec8 76b33eb8 00018394 00130520
 r10:00000036 r9:8452d400 r8:8020029c r7:00000036 r6:002642e0 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..