URL:
<http://savannah.gnu.org/bugs/?45713>
Summary: [PATCH] stack overflow due to too deep recursion
Project: GNU Screen
Submitted by: kcwu
Submitted on: Fri 07 Aug 2015 12:54:02 PM GMT
Category: Crash/Freeze/Infloop
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Release: None
Fixed Release: None
Planned Release: None
Work Required: None
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Details:
How to reproduce:
Run this command inside screen
$ printf '\x1b[10000000T'
screen will recursively call MScrollV to depth n/256. This is time consuming
and will overflow stack if n is huge.
There is already code to handle huge value below the recursion.
if (ye - ys + 1 < n)
IIUC, we can just remove the recursion and don't change its behavior.
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File Attachments:
-------------------------------------------------------
Date: Fri 07 Aug 2015 12:54:02 PM GMT Name: diff-screen-ansi.txt Size: 687B
By: kcwu
<http://savannah.gnu.org/bugs/download.php?file_id=34590>
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