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

[B Bobo]

** Description changed:

  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, and tcsh shells at least in all
- versions in Ubuntu and further back in Ubuntu pre-history too.
+ 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.

** Summary changed:

- subshell that instantly locks up bash, dash, and tcsh
+ subshell that instantly locks up bash, dash, ksh, tcsh, and zsh

** Also affects: zsh
   Importance: Undecided
       Status: New

** Project changed: zsh => zsh (Ubuntu)

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

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

Status in dash - The Debian Almquist Shell:
  New
Status in tcsh:
  New
Status in “bash” package in Ubuntu:
  New
Status in “zsh” package in Ubuntu:
  New

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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