PuTTY bug large-clipboard-crash

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summary: Crashes with large clipboard operations containing lots of blank space
class: bug: This is clearly an actual problem we want fixed.
priority: medium: This should be fixed one day.
present-in: 0.53 0.54 2004-06-01 0.56 2004-11-26 2004-11-29 2004-12-27 2005-02-22 2005-03-18 2005-03-28 0.58 2005-06-08
fixed-in: r6570 9432d92b916afd9342876bacb47dc134613eb3cb 2006-02-20 (0.59)

We've had some reports of crashes when moderately large clipboard operations are performed. Typically this is associated with use of the "Copy All to Clipboard" menu action, but it can happen with ordinary mouse-button copy-and-paste too.

It turns out that PuTTY can crash when attempting to copy a large (> 5 kilobyte) chunk of text containing a significant number of consecutive empty lines. (More than 100 after the 5k mark would likely guarantee a crash or other misbehaviour, but it could happen with fewer.)

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(last revision of this bug record was at 2016-12-27 11:40:21 +0000)

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