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authoroehhar <harald.oehlmann@elmicron.de>2024-07-22 12:25:01 (GMT)
committeroehhar <harald.oehlmann@elmicron.de>2024-07-22 12:25:01 (GMT)
commit14b416c8a098f473d29296e5af955a1584c41e75 (patch)
treecb07a2a3240bad909e865d1bad64a1921b6613d4
parent5582225db8a3538d65b30d9b30039bc8461a462a (diff)
parent6e916f429d07206cd992b4696ba371e1f2ae6d4e (diff)
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Ticket [2d3a81c0] MS-Win: segfault on menubutton destroy: merge fix branch
-rw-r--r--generic/tkMenu.c10
-rw-r--r--win/tkWinMenu.c2
2 files changed, 9 insertions, 3 deletions
diff --git a/generic/tkMenu.c b/generic/tkMenu.c
index b32c114..66d919f 100644
--- a/generic/tkMenu.c
+++ b/generic/tkMenu.c
@@ -1012,7 +1012,7 @@ MenuWidgetObjCmd(
*
* Side effects:
* Commands may get excecuted; variables may get set; sub-menus may get
- * posted.
+ * posted, the passed menu may be destroyed.
*
*----------------------------------------------------------------------
*/
@@ -1021,8 +1021,12 @@ int
TkInvokeMenu(
Tcl_Interp *interp, /* The interp that the menu lives in. */
TkMenu *menuPtr, /* The menu we are invoking. */
- Tcl_Size index) /* The zero based index of the item we are
- * invoking. */
+ /* Must be protected by Tcl_Preserve
+ * against freeing by the caller.
+ * Tk Bug [2d3a81c0].
+ */
+ Tcl_Size index) /* The zero based index of the item we are
+ * invoking. */
{
int result = TCL_OK;
TkMenuEntry *mePtr;
diff --git a/win/tkWinMenu.c b/win/tkWinMenu.c
index 29332e2..163566e 100644
--- a/win/tkWinMenu.c
+++ b/win/tkWinMenu.c
@@ -1238,11 +1238,13 @@ TkWinHandleMenuEvent(
interp = menuPtr->interp;
Tcl_Preserve(interp);
+ Tcl_Preserve(menuPtr);
code = TkInvokeMenu(interp, menuPtr, mePtr->index);
if (code != TCL_OK && code != TCL_CONTINUE && code != TCL_BREAK) {
Tcl_AddErrorInfo(interp, "\n (menu invoke)");
Tcl_BackgroundException(interp, code);
}
+ Tcl_Release(menuPtr);
Tcl_Release(interp);
*plResult = 0;
returnResult = 1;