------------[ cut here ]------------
WARNING: CPU: 1 PID: 3956 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: 3956 Comm: syz-executor.0 Not tainted 6.11.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Call trace: 
[<81953848>] (dump_backtrace) from [<81953944>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:826228c4 r5:00000000 r4:8200ba34
[<8195392c>] (show_stack) from [<81971618>] (__dump_stack lib/dump_stack.c:93 [inline])
[<8195392c>] (show_stack) from [<81971618>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:119)
[<819715c4>] (dump_stack_lvl) from [<81971658>] (dump_stack+0x18/0x1c lib/dump_stack.c:128)
 r5:00000000 r4:8286bd18
[<81971640>] (dump_stack) from [<819543ec>] (panic+0x120/0x358 kernel/panic.c:348)
[<819542cc>] (panic) from [<802421dc>] (check_panic_on_warn kernel/panic.c:241 [inline])
[<819542cc>] (panic) from [<802421dc>] (get_taint+0x0/0x1c kernel/panic.c:236)
 r3:8260c5c4 r2:00000001 r1:81ff4258 r0:81ffc030
 r7:804814dc
[<80242168>] (check_panic_on_warn) from [<80242330>] (__warn+0x7c/0x180 kernel/panic.c:735)
[<802422b4>] (__warn) from [<802425ac>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:760)
 r8:00000009 r7:8202355c r6:dfc69d14 r5:84675400 r4:00000000
[<80242438>] (warn_slowpath_fmt) from [<804814dc>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622)
 r10:ffedc0a8 r9:8463e700 r8:200fb000 r7:fffffffe r6:00000003 r5:84675400
 r4:ffedc000
[<804812d0>] (kunmap_local_indexed) from [<804f11e4>] (__kunmap_local include/linux/highmem-internal.h:94 [inline])
[<804812d0>] (kunmap_local_indexed) from [<804f11e4>] (move_pages_pte mm/userfaultfd.c:1326 [inline])
[<804812d0>] (kunmap_local_indexed) from [<804f11e4>] (move_pages+0x7e8/0x149c mm/userfaultfd.c:1727)
 r7:fffffffe r6:00000000 r5:84535800 r4:ffeda7d8
[<804f09fc>] (move_pages) from [<8056bf6c>] (userfaultfd_move fs/userfaultfd.c:2016 [inline])
[<804f09fc>] (move_pages) from [<8056bf6c>] (userfaultfd_ioctl+0x125c/0x2310 fs/userfaultfd.c:2139)
 r10:20c16000 r9:dfc69e98 r8:20000080 r7:8463e700 r6:00000001 r5:00000000
 r4:84638000
[<8056ad10>] (userfaultfd_ioctl) from [<8051a098>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<8056ad10>] (userfaultfd_ioctl) from [<8051a098>] (do_vfs_ioctl fs/ioctl.c:861 [inline])
[<8056ad10>] (userfaultfd_ioctl) from [<8051a098>] (__do_sys_ioctl fs/ioctl.c:905 [inline])
[<8056ad10>] (userfaultfd_ioctl) from [<8051a098>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893)
 r10:84675400 r9:00000003 r8:843fbc00 r7:20000080 r6:843fbc01 r5:00000000
 r4:c028aa05
[<80519f64>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfc69fa8 to 0xdfc69ff0)
9fa0:                   00000000 00000000 00000003 c028aa05 20000080 00000000
9fc0: 00000000 00000000 0014c2c8 00000036 7ecb832e 7ecb832f 003d0f00 76b1f0fc
9fe0: 76b1ef08 76b1eef8 000167e8 00050bb0
 r10:00000036 r9:84675400 r8:8020029c r7:00000036 r6:0014c2c8 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..