------------[ cut here ]------------
WARNING: mm/highmem.c:714 at kmap_local_fork+0x60/0x64 mm/highmem.c:714, CPU#0: syz.2.2607/15869
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 15869 Comm: syz.2.2607 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:8281f940 r6:00000000 r5:822a7e2c r4:00000001
[<80201af0>] (show_stack) from [<8021e444>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201af0>] (show_stack) from [<8021e444>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e3e8>] (dump_stack_lvl) from [<8021e470>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:8281f940 r6:00000000 r5:839dd400 r4:82a80d14
[<8021e458>] (dump_stack) from [<8020260c>] (vpanic+0x114/0x320 kernel/panic.c:650)
[<802024f8>] (vpanic) from [<8020284c>] (trace_suspend_resume+0x0/0x104 kernel/panic.c:787)
 r7:804d9cb0
[<80202818>] (panic) from [<80250a4c>] (check_panic_on_warn kernel/panic.c:524 [inline])
[<80202818>] (panic) from [<80250a4c>] (get_taint+0x0/0x1c kernel/panic.c:519)
 r3:8280c544 r2:00000001 r1:8228eb84 r0:8229644c
[<802509d4>] (check_panic_on_warn) from [<80250bc8>] (__warn+0x98/0x1ac kernel/panic.c:1062)
[<80250b30>] (__warn) from [<80250e54>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:1089)
 r8:00000009 r7:822c29ac r6:ea415e0c r5:839dd400 r4:00000000
[<80250ce0>] (warn_slowpath_fmt) from [<804d9cb0>] (kmap_local_fork+0x60/0x64 mm/highmem.c:714)
 r10:00000000 r9:dfc7c000 r8:00000000 r7:00000000 r6:839dd400 r5:00000000
 r4:84023c00
[<804d9c50>] (kmap_local_fork) from [<8024de04>] (dup_task_struct kernel/fork.c:977 [inline])
[<804d9c50>] (kmap_local_fork) from [<8024de04>] (copy_process+0x34c/0x1928 kernel/fork.c:2050)
 r5:00000000 r4:84023c00
[<8024dab8>] (copy_process) from [<8024f524>] (kernel_clone+0xac/0x428 kernel/fork.c:2654)
 r10:839dd400 r9:839dd400 r8:00000000 r7:00000000 r6:ea415f30 r5:00000000
 r4:00000000
[<8024f478>] (kernel_clone) from [<8024fc50>] (__do_sys_clone kernel/fork.c:2795 [inline])
[<8024f478>] (kernel_clone) from [<8024fc50>] (sys_clone+0x78/0x9c kernel/fork.c:2763)
 r10:00000078 r9:839dd400 r8:8020029c r7:00000000 r6:00000000 r5:00000000
 r4:00000011
[<8024fbd8>] (sys_clone) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xea415fa8 to 0xea415ff0)
5fa0:                   00000000 00000000 00000011 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000078 003462d8 00000000 00000001 76f180dc
5fe0: 76f17e60 76f17e50 00018ebc 001302e0
 r7:00000078 r6:00000000 r5:00000000 r4:00000000
Rebooting in 86400 seconds..