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<base href="https://bugs.webkit.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - SEGFAULT in JSC::BuiltinExecutables / WTFCrash"
href="https://bugs.webkit.org/show_bug.cgi?id=164119">164119</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>SEGFAULT in JSC::BuiltinExecutables / WTFCrash
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P3
</td>
</tr>
<tr>
<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>fumfi.255@gmail.com
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=293136" name="attach_293136" title="POC to trigger SEGFAULT (jsc)">attachment 293136</a> <a href="attachment.cgi?id=293136&action=edit" title="POC to trigger SEGFAULT (jsc)">[details]</a></span>
POC to trigger SEGFAULT (jsc)
Affected SVN revision: 208042
To reproduce the problem:
./jsc webkit_jsc_wtfcrash.js
ASAN Output:
1 0x7fe4d18f3937 WTFCrash
2 0x7fe4d00ae6a9 JSC::BuiltinExecutables::createExecutable(JSC::VM&, JSC::SourceCode const&, JSC::Identifier const&, JSC::ConstructorKind, JSC::ConstructAbility)
3 0x51ff31
4 0x7fe488dfe028
ASAN:DEADLYSIGNAL
=================================================================
==16722==ERROR: AddressSanitizer: SEGV on unknown address 0x0000977537dd (pc 0x7fe4d18f3937 bp 0x000000000000 sp 0x7fff81df6b80 T0)
==16722==The signal is caused by a READ memory access.
#0 0x7fe4d18f3936 in WTFCrash XYZ/webkit/Source/WTF/wtf/Assertions.cpp:322:5
#1 0x7fe4d00ae6a8 in JSC::BuiltinExecutables::createExecutable(JSC::VM&, JSC::SourceCode const&, JSC::Identifier const&, JSC::ConstructorKind, JSC::ConstructAbility) XYZ/webkit/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp:92:5
#2 0x51ff30 in functionCreateBuiltin(JSC::ExecState*) XYZ/webkit/Source/JavaScriptCore/jsc.cpp:2260:62
#3 0x7fe488dfe027 (<unknown module>)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV XYZ/webkit/Source/WTF/wtf/Assertions.cpp:322:5 in WTFCrash
==16722==ABORTING
Regards,
Kamil Frankowicz</pre>
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