URL:
<http://savannah.gnu.org/bugs/?45714>
Summary: read access violation in MWrapChar()
Project: GNU Screen
Submitted by: kcwu
Submitted on: Fri 07 Aug 2015 02:07:13 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
$ screen -D -m printf '\x1b[8;;1t\xe3\x80\xb4\x1b[P'
It crashed inside MWrapChar() with y=-1
at line
copy_mchar2mline(&mchar_null, ml, p->w_width);
which access to ml->image but ml is invalid due to
ml = &p->w_mlines[y];
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