The issue is reported by Coverity. Using strcpy or strcat copying string without checking length may cause overflow. BUG=b:188769921 Reported-by: Coverity (CID:1438964) Change-Id: I609d9ce405d01c57b1847a6310630ea0341e13be Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/54946 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>