[Bug 2083131] Re: Bash's builtin command "printf" has a grave functionality bug - fails to print the format like "%.2f .1"

[Agathe Porte]

I am encountering this bug too in oracular, and it is breaking a lot of
my scripts. A workaround is to use /usr/bin/printf instead of the bash
builtin until this is fixed. I do not understand why the Debian folks
reverted the severity from critical to normal as this is breaking
external programs. Moving severity to critical.

** Changed in: bash (Ubuntu)
   Importance: Undecided => Critical

** Bug watch added: Debian Bug tracker #1078556
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078556

** Also affects: bash (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078556
   Importance: Unknown
       Status: Unknown

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Title:
  Bash's builtin command "printf" has a grave functionality bug - fails
  to print the format like "%.2f .1"

Status in bash package in Ubuntu:
  Confirmed
Status in bash package in Debian:
  Unknown

Bug description:
  As reported in the upstream Debian Linux:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078556
  Bash's builtin command "printf" has a grave functionality bug - fails to print the format like "%.2f .1".

  # bash --version
  GNU bash, version 5.2.32(1)-release (x86_64-pc-linux-gnu)
  Copyright (C) 2022 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

  This is free software; you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.

  # printf "%.2f\n" 0.1
  nan

  As mentioned in the above URL, upstream's configure-strtold-check patch:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1078556;filename=configure-strtold-check;msg=20

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