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Red Hat Bugzilla – Attachment 1453566 Details for
Bug 1593857
Bad reference count handling in ItclObjectCmd (segfaults)
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[patch]
Fixes the double-free problem in ItclObjectCmd
itcl-doublefree.patch (text/plain), 719 bytes, created by
Patrick Monnerat
on 2018-06-21 17:05:16 UTC
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Description:
Fixes the double-free problem in ItclObjectCmd
Filename:
MIME Type:
Creator:
Patrick Monnerat
Created:
2018-06-21 17:05:16 UTC
Size:
719 bytes
patch
obsolete
>diff -Naurp itcl4.0.3.orig/generic/itclObject.c itcl4.0.3.new/generic/itclObject.c >--- itcl4.0.3.orig/generic/itclObject.c 2015-03-06 19:19:29.000000000 +0100 >+++ itcl4.0.3.new/generic/itclObject.c 2018-06-21 18:45:50.797224904 +0200 >@@ -3028,12 +3028,12 @@ ItclObjectCmd( > Tcl_DecrRefCount(methodNamePtr); > } > methodNamePtr = objv[0]; >- Tcl_IncrRefCount(methodNamePtr); > } > } > callbackPtr = Itcl_GetCurrentCallbackPtr(interp); > newObjv = NULL; > if (methodNamePtr != NULL) { >+ Tcl_IncrRefCount(methodNamePtr); > if (iclsPtr->flags & (ITCL_TYPE|ITCL_WIDGETADAPTOR)) { > char *myName; > /* special handling for mytypemethod, mymethod, myproc */
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