I noticed that the bootup scripts that collect the password for full disk encryption on linux (fedora-31) were displaying corrupted text. The kind that looked like binary data being printed at text:
'Forward Password R…uests to Wall Directory Watch'
When I examined those binary chars I found between to the 'R' and the 'uests' three binary chars (e2, 80, a6). When I run those unprintable chars into objdump I get valid opcodes:
0: e2 80 loop 0xffffffffffffff82
2: a6 cmpsb %es:(%rdi),%ds:(%rsi)
I'm really hoping there is a good reason for valid opcodes being embedded in text messages. But considering its happening during the full disk encryption password collector it has me worried.
I've also noticed that others have this same issue. A web search for "Forward Password R..." finds others with the same binary corruption in their bootup logs.
Does anyone know what is going on here?