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Re: Segfault in Bash

From: Greg Wooledge
Subject: Re: Segfault in Bash
Date: Tue, 14 Jul 2020 08:23:20 -0400
User-agent: Mutt/1.10.1 (2018-07-13)

> > IFS="" find "$dir" -name '*.so' -print | while read -r file
> > do
> >     if ! $(echo "$file" | grep -E "*.so$"); then continue; fi
> >     echo "library: $file"
> > 
> > done

Also, I forgot to point out: your "if" line is executing each of
the shared libraries that you find.  Every one of them matches the
grep check, and since you enclosed the check in a command substitution,
the output of grep (which is the pathname) is *executed* as a command.

That's probably where your segfault is happening.

Once you remove this completely unnecessary and incorrectly written
check, the segfaults from running random shared library files as
commands will stop happening.

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