------------[ cut here ]------------
WARNING: CPU: 0 PID: 4347 at mm/highmem.c:622 kunmap_local_indexed+0x210/0x228 mm/highmem.c:622
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 4347 Comm: syz.1.148 Not tainted 6.11.0-rc7-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<8195d178>] (dump_backtrace) from [<8195d274>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:826228c4 r5:00000000 r4:8200ca20
[<8195d25c>] (show_stack) from [<8197af94>] (__dump_stack lib/dump_stack.c:93 [inline])
[<8195d25c>] (show_stack) from [<8197af94>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:119)
[<8197af40>] (dump_stack_lvl) from [<8197afd4>] (dump_stack+0x18/0x1c lib/dump_stack.c:128)
 r5:00000000 r4:8286dd18
[<8197afbc>] (dump_stack) from [<8195dd1c>] (panic+0x120/0x368 kernel/panic.c:354)
[<8195dbfc>] (panic) from [<802421e4>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<8195dbfc>] (panic) from [<802421e4>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c5c4 r2:00000001 r1:81ff5244 r0:81ffd01c
 r7:804817e4
[<80242170>] (check_panic_on_warn) from [<80242338>] (__warn+0x7c/0x180 kernel/panic.c:741)
[<802422bc>] (__warn) from [<802425b4>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:766)
 r8:00000009 r7:82024564 r6:dfbd1d14 r5:84d3a400 r4:00000000
[<80242440>] (warn_slowpath_fmt) from [<804817e4>] (kunmap_local_indexed+0x210/0x228 mm/highmem.c:622)
 r10:ffefdfe8 r9:840e3000 r8:20000000 r7:00000000 r6:00000003 r5:84d3a400
 r4:ffefd000
[<804815d4>] (kunmap_local_indexed) from [<804f7ed0>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<804815d4>] (kunmap_local_indexed) from [<804f7ed0>] (move_pages_pte mm/userfaultfd.c:1329 [inline])
[<804815d4>] (kunmap_local_indexed) from [<804f7ed0>] (move_pages+0x7e8/0x14a0 mm/userfaultfd.c:1730)
 r7:00000000 r6:850edae0 r5:dedc2e34 r4:ffefb000
[<804f76e8>] (move_pages) from [<80572eec>] (userfaultfd_move fs/userfaultfd.c:2016 [inline])
[<804f76e8>] (move_pages) from [<80572eec>] (userfaultfd_ioctl+0x1260/0x2314 fs/userfaultfd.c:2139)
 r10:21000000 r9:dfbd1e98 r8:20000040 r7:840e3000 r6:00000001 r5:00000000
 r4:8526a000
[<80571c8c>] (userfaultfd_ioctl) from [<80520db4>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80571c8c>] (userfaultfd_ioctl) from [<80520db4>] (do_vfs_ioctl fs/ioctl.c:861 [inline])
[<80571c8c>] (userfaultfd_ioctl) from [<80520db4>] (__do_sys_ioctl fs/ioctl.c:905 [inline])
[<80571c8c>] (userfaultfd_ioctl) from [<80520db4>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893)
 r10:84d3a400 r9:00000003 r8:8421ac00 r7:20000040 r6:8421ac01 r5:00000000
 r4:c028aa05
[<80520c80>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfbd1fa8 to 0xdfbd1ff0)
1fa0:                   00000000 00000000 00000003 c028aa05 20000040 00000000
1fc0: 00000000 00000000 002862f0 00000036 00000000 00006364 003d0f00 76b3d0bc
1fe0: 76b3cec0 76b3ceb0 000189d0 00132da0
 r10:00000036 r9:84d3a400 r8:8020029c r7:00000036 r6:002862f0 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..