[Bug 1206370] Re: subshell that instantly locks up bash, dash, ksh, tcsh, and zsh

[Thorsten Glaser]

https://bugs.launchpad.net/ubuntu/+source/tcsh/+bug/1213743/comments/1
contains an explanation on why this is not a bug. Stop bothering people.

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https://bugs.launchpad.net/bugs/1206370

Title:
  subshell that instantly locks up bash, dash, ksh, tcsh, and zsh

Status in “bash” package in Ubuntu:
  Won't Fix
Status in “dash” package in Ubuntu:
  Won't Fix
Status in “ksh” package in Ubuntu:
  Won't Fix
Status in “tcsh” package in Ubuntu:
  Won't Fix
Status in “zsh” package in Ubuntu:
  Won't Fix

Bug description:
  Type this at a shell prompt in gnome-terminal:

  $ (yes&)
  y
  y
  y
  y
  y
  y
  ...

  Denial of service. Shell becomes totally unresponsive. Subshell
  command is uninterruptible.

  An old one that affects bash, dash, ksh, tcsh, and zsh shells at least
  in all versions in Ubuntu and further back in Ubuntu pre-history too.

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