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authoroehhar <harald.oehlmann@elmicron.de>2024-07-22 12:28:17 (GMT)
committeroehhar <harald.oehlmann@elmicron.de>2024-07-22 12:28:17 (GMT)
commitca8d4ac42662adcd82974b265f773234bed034e0 (patch)
tree6971ad6cb636053734716bf20184e8234926d415
parente8e73186ca2338f5c497ee8a0dd621977d2f215b (diff)
parent14b416c8a098f473d29296e5af955a1584c41e75 (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 be60f2a..083db40 100644
--- a/generic/tkMenu.c
+++ b/generic/tkMenu.c
@@ -1008,7 +1008,7 @@ MenuWidgetObjCmd(
*
* Side effects:
* Commands may get excecuted; variables may get set; sub-menus may get
- * posted.
+ * posted, the passed menu may be destroyed.
*
*----------------------------------------------------------------------
*/
@@ -1017,8 +1017,12 @@ 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 909237c..e70cf70 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;