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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - _csi_intern_string _csi_perm_alloc invalid free()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93151">93151</a>
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<th>Summary</th>
<td>_csi_intern_string _csi_perm_alloc invalid free()
</td>
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<th>Product</th>
<td>cairo
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>general
</td>
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>hvtaifwkbgefbaei@gmail.com
</td>
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<th>QA Contact</th>
<td>cairo-bugs@cairographics.org
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<p>
<div>
<pre>_csi_intern_string:
if (istring == NULL) {
istring = _csi_perm_alloc (ctx,
sizeof (csi_intern_string_t) + len + 1);
_csi_perm_alloc is where the fun happens! (cleaned up a bit)
csi_chunk_t *chunk = _csi_alloc (ctx, sizeof (csi_chunk_t) + chunk_size);
chunk->ptr = (char *) (chunk + 1);
ptr = chunk->ptr;
return ptr;
in _csi_intern_string , if _csi_hash_table_insert fails:
_csi_free (ctx, istring);
so basically it does malloc(something) and free(something +
sizeof(csi_chunk_t)).</pre>
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