------------[ cut here ]------------
WARNING: CPU: 0 PID: 5076 at mm/highmem.c:622 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 5076 Comm: syz.0.383 Not tainted 6.12.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<819991f8>] (dump_backtrace) from [<819992f4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82622f44 r5:00000000 r4:8203d408
[<819992dc>] (show_stack) from [<819b7784>] (__dump_stack lib/dump_stack.c:94 [inline])
[<819992dc>] (show_stack) from [<819b7784>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<819b7730>] (dump_stack_lvl) from [<819b77c4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82870d18
[<819b77ac>] (dump_stack) from [<81999e20>] (panic+0x120/0x374 kernel/panic.c:354)
[<81999d00>] (panic) from [<802420e0>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<81999d00>] (panic) from [<802420e0>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c5c4 r2:00000001 r1:820257e8 r0:8202d250
 r7:8048c6b4
[<8024206c>] (check_panic_on_warn) from [<80242244>] (__warn+0x80/0x188 kernel/panic.c:748)
[<802421c4>] (__warn) from [<802424c4>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:775)
 r8:00000009 r7:82054e4c r6:dfd79d24 r5:83e7ec00 r4:00000000
[<80242350>] (warn_slowpath_fmt) from [<8048c6b4>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622)
 r10:ffefde20 r9:83e5de00 r8:20000000 r7:00000000 r6:00000003 r5:83e7ec00
 r4:ffefd000
[<8048c4a8>] (kunmap_local_indexed) from [<80505ad8>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<8048c4a8>] (kunmap_local_indexed) from [<80505ad8>] (move_pages_pte mm/userfaultfd.c:1329 [inline])
[<8048c4a8>] (kunmap_local_indexed) from [<80505ad8>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1730)
 r7:00000000 r6:84625f00 r5:decdff68 r4:ffefb000
[<805052f0>] (move_pages) from [<80581d18>] (userfaultfd_move fs/userfaultfd.c:1871 [inline])
[<805052f0>] (move_pages) from [<80581d18>] (userfaultfd_ioctl+0x114c/0x2080 fs/userfaultfd.c:1994)
 r10:83e5de00 r9:dfd79e98 r8:00000001 r7:201c7000 r6:00000000 r5:20000000
 r4:85057000
[<80580bcc>] (userfaultfd_ioctl) from [<8052f6e4>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80580bcc>] (userfaultfd_ioctl) from [<8052f6e4>] (__do_sys_ioctl fs/ioctl.c:907 [inline])
[<80580bcc>] (userfaultfd_ioctl) from [<8052f6e4>] (sys_ioctl+0x134/0xda8 fs/ioctl.c:893)
 r10:83e7ec00 r9:85050840 r8:00000005 r7:20000000 r6:85050841 r5:00000000
 r4:c028aa05
[<8052f5b0>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfd79fa8 to 0xdfd79ff0)
9fa0:                   00000000 00000000 00000005 c028aa05 20000000 00000000
9fc0: 00000000 00000000 002864a0 00000036 00000000 00006364 003d0f00 76aa30bc
9fe0: 76aa2ec0 76aa2eb0 00018af8 00132ec0
 r10:00000036 r9:83e7ec00 r8:8020029c r7:00000036 r6:002864a0 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..