[Webkit-unassigned] [Bug 30827] Off-by-one hard-to-trigger memory corruption in CSSParser (seen only with GCC 4.4)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=30827


Darin Adler <darin at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Off-by-one hard-to-trigger  |Off-by-one hard-to-trigger
                   |memory corruption in        |memory corruption in
                   |CSSParser                   |CSSParser (seen only with
                   |                            |GCC 4.4)




--- Comment #4 from Darin Adler <darin at apple.com>  2009-10-27 11:39:03 PDT ---
(In reply to comment #3)
> One additional fact I left out: it appears that the discriminating difference
> to trigger this is GCC 4.4 rather than GCC 4.3.  It doesn't happen to
> Google-based Chrome developers who are using GCC 4.3 (and likely also OS X
> WebKit devs).  It does happen to people building on both Fedora and Ubuntu with
> GCC 4.4.

That points to either a compiler bug or a side effect of more aggressive
optimization, then.

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