144764 - tollerate do_QueryReferent() returning null [@nsXULPrototypeScript::Compile]

Status: VERIFIED DUPLICATE of bug 144763

(Core :: XUL, defect)

Description

[timeless]

Program received signal SIGSEGV, Segmentation fault.
0x294b9f9b in nsXULPrototypeScript::Compile (this=0x82b8c80, aText=0x84d4000, aTextLength=34, aURI=0x80d1500, aLineNo=118,
    aDocument=0x0, aPrototypeDocument=0x84927c0) at /home/timeless/mozilla/content/xul/content/src/nsXULElement.cpp:5437
5437        rv = aDocument->GetPrincipal(getter_AddRefs(principal));
Current language:  auto; currently c++
(gdb) p aDocument
$1 = (nsIDocument *) 0x0
(gdb) up
#1  0x294c4be7 in XULContentSinkImpl::HandleEndElement (this=0x8499500, aName=0x82ba70c)
    at /home/timeless/mozilla/content/xul/document/src/nsXULContentSink.cpp:947
947                                      script->mLineNo, doc, mPrototype);
(gdb) l
942                 nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);
943
944                 script->mOutOfLine = PR_FALSE;
945
946                 rv = script->Compile(mText, mTextLength, mDocumentURL,
947                                      script->mLineNo, doc, mPrototype);
948             }
949
950             FlushText(PR_FALSE);
951         }
(gdb) p doc
$2 = {mRawPtr = 0x0}

Comment 1

[Boris Zbarsky [:bzbarsky]]

*** This bug has been marked as a duplicate of 144763 ***

Comment 2

[shrirang khanzode]

v