93031 2012-08-02 14:32:20 -0700 A few objects aren't being safely protected from GC in all cases 2012-08-12 07:08:46 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 93096 1 oliver oliver oldest_to_newest 685831 0 oliver 2012-08-02 14:32:20 -0700 A few objects aren't being safely protected from GC in all cases 685834 1 156168 oliver 2012-08-02 14:33:45 -0700 Created attachment 156168 Patch 685897 2 oliver 2012-08-02 15:24:17 -0700 Committed r124510: <http://trac.webkit.org/changeset/124510> 693254 3 156168 cdumez 2012-08-12 05:48:15 -0700 Comment on attachment 156168 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=156168&action=review > Source/WebCore/bindings/js/JSDictionary.h:51 > + , m_initializerObject(exec->globalData(), initializerObject) exec is being used here without null-check. The issue is that exec may be 0, for example when the default constructor for Dictionary is called. This leads to crashes (See Bug 93096). > Source/WebCore/bindings/js/JSDictionary.h:68 > bool isValid() const { return m_exec && m_initializerObject; } This function also hints that both m_exec and m_initializerObject may be NULL. 156168 2012-08-02 14:33:45 -0700 2012-08-12 05:48:15 -0700 Patch bug-93031-20120802143326.patch text/plain 7874 oliver U3VidmVyc2lvbiBSZXZpc2lvbjogMTI0NDg3CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZWJjZTA5ZWE5MjE3MWM5 NzExNTA4ZDEzYzgxMWRiZDZiYWMwMzE1Yi4uODcwMTE3ODQyMjAzODFhNzcwODY5ZmYyZTg0OTFm MzU1NmZhNDliYyAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDI4IEBACisyMDEyLTA4LTAyICBPbGl2 ZXIgSHVudCAgPG9saXZlckBhcHBsZS5jb20+CisKKyAgICAgICAgQSBmZXcgb2JqZWN0cyBhcmVu J3QgYmVpbmcgc2FmZWx5IHByb3RlY3RlZCBmcm9tIEdDIGluIGFsbCBjYXNlcworICAgICAgICBo dHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9OTMwMzEKKworICAgICAgICBS 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