bug(xargs): when -a is /dev/full, it do not error out instead allocates memory indefinetively

[HackingRepo]

Hi, findutils mainteners

we want let you known, when passing to -a, /dev/full, it just hangs and tries allocate massive memory, until killed, we confirmed using free -mh

relunsec@relunsec:~/software/findutils/target/debug$ sudo ./xargs -a /dev/full ls
^C

until killed by the linux kernel OOM or pressing CTRL+C, while the gnu correctly error out and abort not tries to allocate indefnitevly memory, unlike the uu find

relunsec@relunsec:~/software/findutils/target/debug$ sudo /bin/xargs -a /dev/full ls
/bin/xargs: WARNING: a NUL character occurred in the input.  It cannot be passed through in the argument list.  Did you mean to use the --null option?
/bin/xargs: argument line too long