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authordgp <dgp@users.sourceforge.net>2016-06-22 17:48:38 (GMT)
committerdgp <dgp@users.sourceforge.net>2016-06-22 17:48:38 (GMT)
commitb0e0eec1d27b65fc2dc9726feb21c5b00d4a2f86 (patch)
treea2761490c7e300266191f3047102845715f39e54 /generic/tkWindow.c
parente3f97366c0879c3795864d9f6b67a993ca79d978 (diff)
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[787adc5ed7] Workaround potential crash in Tcl_DStringAppend.
Diffstat (limited to 'generic/tkWindow.c')
-rw-r--r--generic/tkWindow.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/generic/tkWindow.c b/generic/tkWindow.c
index f2e98e8..4ac2849 100644
--- a/generic/tkWindow.c
+++ b/generic/tkWindow.c
@@ -3175,7 +3175,7 @@ Initialize(
TkpGetAppName(interp, &class);
offset = Tcl_DStringLength(&class)+1;
- Tcl_DStringSetLength(&class, offset);
+ Tcl_DStringSetLength(&class, 2*offset);
Tcl_DStringAppend(&class, Tcl_DStringValue(&class), offset-1);
name = Tcl_DStringValue(&class) + offset;
} else {