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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Newsgroups: gnu.bash.bug
Subject: Re: process substitution fd lifetime race condition
Date: Mon, 20 Apr 2020 15:43:38 -0600
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Xref: csiph.com gnu.bash.bug:16203

Here's a simpler reproducer:

set -e
a="my name is a"
b="my name is b"
pretty() { echo -e "\x1b[0m"; }
doit() { pretty; "$@"; }
while true; do
   doit cat <(echo "$a") <(echo "$b")
done