No specific steps to repro

crash report:https://crash.corp.google.com/browse?stbtiq=6c6baaf500000000

Thread 0 CRASHED [SIGSEGV @ 0x00000000 ] MAGIC SIGNATURE THREAD
0xb6fd14a6	(frecon -term.c:542 )	term_activate
0xb6fd1d67	(frecon -term.c:801 )	term_switch_to
0xb6fd656d	(frecon -input.c:187 )	input_special_key
0xb6fd6b57	(frecon -input.c:430 )	input_dispatch_io
0xb6fd544f	(frecon -main.c:132 )	main_process_events
0xb6fd54f7	(frecon -main.c:168 )	main_loop
0xb6fd033f	(frecon -main.c:452 )	main
0xb6e37307	(libc-2.19.so -libc-start.c:285 )	__libc_start_main
0xb6fd04a7	(frecon + 0x000034a7 )	_start
0xb6fd7f47	(frecon -elf-init.c:87 )	__libc_csu_init
0xb6fb69df	(ld-2.19.so + 0x0000b9df )	_dl_sort_fini