------------[ cut here ]------------
WARNING: mm/highmem.c:714 at kmap_local_fork+0x60/0x64 mm/highmem.c:714, CPU#1: syz.2.17/4010
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 4010 Comm: syz.2.17 Not tainted syzkaller #0 PREEMPT 
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 r5:822a7ed4 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 r5:850eec00 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 r1:8228ec2c r0:822964f4
[<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 r7:822c2a54 r6:dfd71d84 r5:850eec00 r4:00000000
[<80250ce0>] (warn_slowpath_fmt) from [<804d9cb0>] (kmap_local_fork+0x60/0x64 mm/highmem.c:714)
 r10:00010000 r9:dfd38000 r8:00000000 r7:00100000 r6:850eec00 r5:003d0f00
 r4:8511d400
[<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)
 r5:003d0f00 r4:8511d400
[<8024dab8>] (copy_process) from [<8024f524>] (kernel_clone+0xac/0x428 kernel/fork.c:2654)
 r10:850eec00 r9:850eec00 r8:00000000 r7:00100000 r6:dfd71ea8 r5:00000058
 r4:003d0f00
[<8024f478>] (kernel_clone) from [<8024f994>] (__do_sys_clone3+0xf4/0x128 kernel/fork.c:2956)
 r10:000001b3 r9:850eec00 r8:8020029c r7:000001b3 r6:0000006e r5:00000058
 r4:7ed3c678
[<8024f8a0>] (__do_sys_clone3) from [<8024fc84>] (sys_clone3+0x10/0x14 kernel/fork.c:2935)
 r5:026d8500 r4:003174b8
[<8024fc74>] (sys_clone3) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfd71fa8 to 0xdfd71ff0)
1fa0:                   003174b8 026d8500 7ed3c678 00000058 0010ccfc 76f0b5c0
1fc0: 003174b8 026d8500 0000006e 000001b3 76f0b5c0 7ed3c73f 003d0f00 00000000
1fe0: 00000000 7ed3c644 00130fbc 0013114c
Rebooting in 86400 seconds..