Original user report: ``` This is with Linux Mint 20.1 Ulyssa, running on an AMD Ryzen 3 1200. $ scanadf -L device `genesys:libusb:001:002' is a Canon LiDE 220 flatbed scanner double free or corruption (out) Aborted (core dumped) $ scanadf -V scanadf (sane-frontends) 1.0.14 ``` I reproduced this on a Ryzen 7 2700 system with a networked pixma scanner attached so unlikely to be backend related.