[Webkit-unassigned] [Bug 10205] New: REGRESSION: Reproducible crash in KJS::Collector::collect on flickr.com under MallocDebug

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=10205

           Summary: REGRESSION: Reproducible crash in
                    KJS::Collector::collect on flickr.com under MallocDebug
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Keywords: NeedsReduction, Regression
          Severity: normal
          Priority: P1
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: opendarwin.org at bdash.net.nz


Steps to reproduce:
1) Open WebKit, and log in to Flickr.
2) Quit WebKit.
3) Relaunch WebKit under MallocDebug and navigate directly to
https://login.yahoo.com/config/login?.src=flkctx&.pc=5134&.done=https%3A%2F%2Flogin.yahoo.com%2Fconfig%2Fvalidate%3F.src%3Dflkctx%26.pc%3D5134%26.done%3Dhttp%253A%252F%252Fwww.flickr.com%252Fsignin%252Fyahoo%252F
(yes, that long url).
4) Enter your Flickr password when prompted.
5) When the Flickr homepage loads, click on the Contacts link on the top
navigation.
6) *crash*

With 100% reproducibility I see:

libMallocDebug[Safari-1253]: Target application (pid 1253) attempted to access
memory at 0x00000183 with insufficient permissions.
libMallocDebug[Safari-1253]: MallocDebug can't do anything about this, so the
app's just going to have to be terminated.
libMallocDebug[Safari-1253]: *************************************************
libMallocDebug[Safari-1253]: THIS IS A BUG IN THE PROGRAM BEING RUN UNDER
MALLOC DEBUG,
libMallocDebug[Safari-1253]: NOT A BUG IN MALLOC DEBUG!
libMallocDebug[Safari-1253]: *************************************************
Bus error

Crash log forthcoming.


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