KASAN: use-after-free Read in relay_switch

KASAN: use-after-free Read in relay_switch_subbuf

#	Log	Report	Time
3	log	report	2024/01/19 18:03
2	log	report	2024/01/18 19:04
1	log	report	2023/07/08 16:56
0	log	report	2022/03/11 19:50