URL:
<http://savannah.gnu.org/bugs/?35757>
Summary: Switching from altscreen after window resize causes
segfault in resize.c:750
Project: GNU Screen
Submitted by: None
Submitted on: Thu 08 Mar 2012 06:18:21 AM UTC
Category: Crash/Freeze/Infloop
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Release: Cur Dev Sources
Fixed Release: None
Planned Release: None
Work Required: None
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Details:
The crash happens in the function ChangeWindowSize() at resize.c:750 while
trying to dereference a structure's member.
f9535294 is the first bad commit
Steps to reproduce:
0. Launch screen and set ":altscreen on" (use the attached crash.screenrc)
1. Split into two regions
2. Launch a program that will use the altscreen (eg. vim)
3. Execute :only to kill the other region; now vim is using the entire screen
4. Exit vim. (that's :q for you Emacs folks). Screen segfaults at this
point.
This is the code at the point of the problem:
749 ml = OLDWIN(yy);
750 if (ml->image[p->w_width] == ' ')
OLDWIN returns NULL in this case.
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File Attachments:
-------------------------------------------------------
Date: Thu 08 Mar 2012 06:18:21 AM UTC Name: crash.screenrc Size: 47B By:
None
<http://savannah.gnu.org/bugs/download.php?file_id=25292>
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