------------[ cut here ]------------
WARNING: CPU: 1 PID: 4758 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: 1 UID: 0 PID: 4758 Comm: syz.0.253 Not tainted 6.12.0-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<819a7c78>] (dump_backtrace) from [<819a7d74>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:82623184 r5:00000000 r4:8203f890
[<819a7d5c>] (show_stack) from [<819c5dc0>] (__dump_stack lib/dump_stack.c:94 [inline])
[<819a7d5c>] (show_stack) from [<819c5dc0>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<819c5d6c>] (dump_stack_lvl) from [<819c5e00>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82871d18
[<819c5de8>] (dump_stack) from [<819a88a0>] (panic+0x120/0x374 kernel/panic.c:354)
[<819a8780>] (panic) from [<80242590>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<819a8780>] (panic) from [<80242590>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8260c604 r2:00000001 r1:82027e64 r0:8202f918
 r7:8048eef8
[<8024251c>] (check_panic_on_warn) from [<802426f4>] (__warn+0x80/0x188 kernel/panic.c:748)
[<80242674>] (__warn) from [<80242974>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:775)
 r8:00000009 r7:82057520 r6:dfe79d24 r5:83fd6c00 r4:00000000
[<80242800>] (warn_slowpath_fmt) from [<8048eef8>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622)
 r10:ffedc0a8 r9:83fecc00 r8:20508000 r7:fffffffe r6:00000003 r5:83fd6c00
 r4:ffedc000
[<8048ecec>] (kunmap_local_indexed) from [<80508bac>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<8048ecec>] (kunmap_local_indexed) from [<80508bac>] (move_pages_pte mm/userfaultfd.c:1329 [inline])
[<8048ecec>] (kunmap_local_indexed) from [<80508bac>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1730)
 r7:fffffffe r6:00000000 r5:84d2c810 r4:ffeda840
[<805083c4>] (move_pages) from [<80587040>] (userfaultfd_move fs/userfaultfd.c:1899 [inline])
[<805083c4>] (move_pages) from [<80587040>] (userfaultfd_ioctl+0x111c/0x2080 fs/userfaultfd.c:2022)
 r10:83fecc00 r9:dfe79e98 r8:00000001 r7:20c16000 r6:00000000 r5:20000080
 r4:84c7c000
[<80585f24>] (userfaultfd_ioctl) from [<80532b64>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<80585f24>] (userfaultfd_ioctl) from [<80532b64>] (do_vfs_ioctl fs/ioctl.c:860 [inline])
[<80585f24>] (userfaultfd_ioctl) from [<80532b64>] (__do_sys_ioctl fs/ioctl.c:904 [inline])
[<80585f24>] (userfaultfd_ioctl) from [<80532b64>] (sys_ioctl+0x138/0xd88 fs/ioctl.c:892)
 r10:83fd6c00 r9:00000003 r8:84d57240 r7:20000080 r6:84d57241 r5:00000000
 r4:c028aa05
[<80532a2c>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfe79fa8 to 0xdfe79ff0)
9fa0:                   00000000 00000000 00000003 c028aa05 20000080 00000000
9fc0: 00000000 00000000 002862f0 00000036 00000000 00006364 003d0f00 76b8f0bc
9fe0: 76b8eec0 76b8eeb0 00018af0 00133450
 r10:00000036 r9:83fd6c00 r8:8020029c r7:00000036 r6:002862f0 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..