------------[ cut here ]------------
WARNING: CPU: 1 PID: 22688 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: 22688 Comm: syz-executor.0 Not tainted 6.8.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<818364cc>] (dump_backtrace) from [<818365c8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:82622dc4 r5:60000093 r4:81fbd350
[<818365b0>] (show_stack) from [<81853ae4>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818365b0>] (show_stack) from [<81853ae4>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<81853a9c>] (dump_stack_lvl) from [<81853b08>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:00000000 r4:82850d18
[<81853af0>] (dump_stack) from [<81837070>] (panic+0x120/0x378 kernel/panic.c:344)
[<81836f50>] (panic) from [<802439cc>] (check_panic_on_warn kernel/panic.c:237 [inline])
[<81836f50>] (panic) from [<802439cc>] (print_tainted+0x0/0xa0 kernel/panic.c:232)
 r3:8260c484 r2:00000001 r1:81fa5d28 r0:81fad9f4
 r7:8046cf70
[<80243958>] (check_panic_on_warn) from [<80243bc0>] (__warn+0x7c/0x180 kernel/panic.c:677)
[<80243b44>] (__warn) from [<80243e3c>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:702)
 r8:00000009 r7:81fd3a10 r6:eacc1b84 r5:8534e000 r4:00000000
[<80243cc8>] (warn_slowpath_fmt) from [<8046cf70>] (kunmap_local_indexed+0x210/0x228 mm/highmem.c:611)
 r10:200fb000 r9:ffeda7d8 r8:86ebc830 r7:8570bc00 r6:00000003 r5:8534e000
 r4:ffedc000
[<8046cd60>] (kunmap_local_indexed) from [<804d99f4>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<8046cd60>] (kunmap_local_indexed) from [<804d99f4>] (move_pages_pte mm/userfaultfd.c:1162 [inline])
[<8046cd60>] (kunmap_local_indexed) from [<804d99f4>] (move_pages+0x5a4/0x1050 mm/userfaultfd.c:1452)
 r7:8570bc00 r6:00000000 r5:00000000 r4:00000000
[<804d9450>] (move_pages) from [<80551b98>] (userfaultfd_move fs/userfaultfd.c:2047 [inline])
[<804d9450>] (move_pages) from [<80551b98>] (userfaultfd_ioctl+0x117c/0x211c fs/userfaultfd.c:2169)
 r10:8570bc7c r9:00000000 r8:00000003 r7:00000001 r6:20000080 r5:8570bc00
 r4:97abe000
[<80550a1c>] (userfaultfd_ioctl) from [<80501dd0>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80550a1c>] (userfaultfd_ioctl) from [<80501dd0>] (do_vfs_ioctl fs/ioctl.c:831 [inline])
[<80550a1c>] (userfaultfd_ioctl) from [<80501dd0>] (__do_sys_ioctl fs/ioctl.c:869 [inline])
[<80550a1c>] (userfaultfd_ioctl) from [<80501dd0>] (sys_ioctl+0x118/0xb58 fs/ioctl.c:857)
 r10:8534e000 r9:00000003 r8:8a3249c0 r7:20000080 r6:8a3249c1 r5:00000000
 r4:c028aa05
[<80501cb8>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66)
Exception stack(0xeacc1fa8 to 0xeacc1ff0)
1fa0:                   00000000 00000000 00000003 c028aa05 20000080 00000000
1fc0: 00000000 00000000 0014c2c8 00000036 7ed7732e 7ed7732f 003d0f00 76b620fc
1fe0: 76b61f08 76b61ef8 000167e8 00050bb0
 r10:00000036 r9:8534e000 r8:80200288 r7:00000036 r6:0014c2c8 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..