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<TITLE> [Mono-bugs] [Bug 558124] [verifier] SIGSEGV in inflate_generic_type on a bad assembly
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<H1>[Mono-bugs] [Bug 558124] [verifier] SIGSEGV in inflate_generic_type on a bad assembly</H1>
<B>bugzilla_noreply at novell.com</B>
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TITLE="[Mono-bugs] [Bug 558124] [verifier] SIGSEGV in inflate_generic_type on a bad assembly">bugzilla_noreply at novell.com
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<I>Tue Nov 24 14:56:17 EST 2009</I>
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<PRE><A HREF="http://bugzilla.novell.com/show_bug.cgi?id=558124">http://bugzilla.novell.com/show_bug.cgi?id=558124</A>
<A HREF="http://bugzilla.novell.com/show_bug.cgi?id=558124#c1">http://bugzilla.novell.com/show_bug.cgi?id=558124#c1</A>
--- Comment #1 from Sebastien Pouliot &lt;<A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">spouliot at novell.com</A>&gt; 2009-11-24 19:56:13 UTC ---
I'm using this local patch (fixing the first two instances in
inflate_generic_type and asserting on the third) to continue fuzzing on other
cases.
Index: mono/metadata/class.c
===================================================================
--- mono/metadata/class.c (revision 146856)
+++ mono/metadata/class.c (working copy)
@@ -505,8 +505,9 @@
if (!inst || !inst-&gt;type_argv)
return NULL;
if (num &gt;= inst-&gt;type_argc) {
+ char *name = image ? image-&gt;module_name : &quot;&lt;no-image&gt;&quot;;
MonoGenericParamInfo *info = mono_generic_param_info
(type-&gt;data.generic_param);
- mono_error_set_bad_image (error, image-&gt;module_name, &quot;MVAR %d (%s)
cannot be expanded in this context with %d instantiations&quot;,
+ mono_error_set_bad_image (error, name, &quot;MVAR %d (%s) cannot be
expanded in this context with %d instantiations&quot;,
num, info ? info-&gt;name : &quot;&quot;, inst-&gt;type_argc);
return NULL;
}
@@ -528,8 +529,9 @@
if (!inst)
return NULL;
if (num &gt;= inst-&gt;type_argc) {
+ char *name = image ? image-&gt;module_name : &quot;&lt;no-image&gt;&quot;;
MonoGenericParamInfo *info = mono_generic_param_info
(type-&gt;data.generic_param);
- mono_error_set_bad_image (error, image-&gt;module_name, &quot;VAR %d (%s)
cannot be expanded in this context with %d instantiations&quot;,
+ mono_error_set_bad_image (error, name, &quot;VAR %d (%s) cannot be
expanded in this context with %d instantiations&quot;,
num, info ? info-&gt;name : &quot;&quot;, inst-&gt;type_argc);
return NULL;
}
@@ -593,6 +595,7 @@
if (inst == container-&gt;context.class_inst)
return NULL;
+ g_assert (klass-&gt;image);
gclass = mono_metadata_lookup_generic_class (klass, inst,
klass-&gt;image-&gt;dynamic);
nt = mono_metadata_type_dup (image, type);
--
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