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<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1277#note_355871837">lib/crypto-api.c</a>:
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909
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909
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<pre style="margin: 0;"> <span id="LC909" class="line" lang="c"> <span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">data</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gnutls_realloc</span><span class="p">(</span><span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">data</span><span class="p">,</span> <span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">size</span><span class="p">);</span></span>
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<td class="diff-line-num old_line" data-linenumber="910" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
910
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<pre style="margin: 0;"> <span id="LC910" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">data</span> <span class="o" style="font-weight: 600;">==</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="911" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
911
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<pre style="margin: 0;"> <span id="LC911" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">gnutls_assert_val</span><span class="p">(</span><span class="n" style="color: #333;">GNUTLS_E_MEMORY_ERROR</span><span class="p">);</span></span>
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<td class="diff-line-num old old_line" data-linenumber="912" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
912
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<pre style="margin: 0;">-<span id="LC912" class="line" lang="c"> <span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">allocated</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">1</span><span class="p">;</span></span>
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<td class="diff-line-num old_line" data-linenumber="913" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
913
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<pre style="margin: 0;"> <span id="LC912" class="line" lang="c"> <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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<td class="diff-line-num old_line" data-linenumber="914" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
914
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<pre style="margin: 0;"> <span id="LC913" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">data</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">data</span><span class="p">;</span></span>
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<td class="diff-line-num old_line" data-linenumber="915" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
915
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<pre style="margin: 0;"> <span id="LC914" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">size_t</span> <span class="n" style="color: #333;">size</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">size</span> <span class="o" style="font-weight: 600;">+</span> <span class="n" style="color: #333;">length</span><span class="p">;</span></span>
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<td class="diff-line-num old_line" data-linenumber="916" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
916
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<pre style="margin: 0;"> <span id="LC915" class="line" lang="c"> <span class="n" style="color: #333;">s</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">data</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gnutls_malloc</span><span class="p">(</span><span class="n" style="color: #333;">size</span><span class="p">);</span></span>
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<p dir="auto">Again, an issue in the original code, but we should check <code>s->data != NULL</code>.</p>
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