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<a href="https://gitlab.com/smuellerDD">Stephan Mueller</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1404#note_551242922">lib/accelerated/afalg.c</a>:
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<pre style="margin: 0;">+<span id="LC466" class="line" lang="c"> <span class="k" style="font-weight: 600;">goto</span> <span class="n" style="color: #333;">end</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC467" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC468" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC469" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC470" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC471" class="line" lang="c"> <span class="n" style="color: #333;">outbuflen</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">kcapi_aead_outbuflen_enc</span><span class="p">(</span><span class="n" style="color: #333;">ctx</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">handle</span><span class="p">,</span> <span class="n" style="color: #333;">plain_size</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC472" class="line" lang="c"> <span class="n" style="color: #333;">auth_size</span><span class="p">,</span> <span class="n" style="color: #333;">tag_size</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC473" class="line" lang="c"> <span class="n" style="color: #333;">inbuflen</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">kcapi_aead_inbuflen_enc</span><span class="p">(</span><span class="n" style="color: #333;">ctx</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">handle</span><span class="p">,</span> <span class="n" style="color: #333;">plain_size</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC474" class="line" lang="c"> <span class="n" style="color: #333;">auth_size</span><span class="p">,</span> <span class="n" style="color: #333;">tag_size</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC475" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC476" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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<pre style="margin: 0;"> <span id="LC477" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Set AAD: IOVECs do not support const, this buffer is guaranteed to be</span></span>
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<pre style="margin: 0;"> <span id="LC478" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * read-only</span></span>
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<pre style="margin: 0;"> <span id="LC479" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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<pre style="margin: 0;">-<span id="LC484" class="line" lang="c"> <span class="n" style="color: #333;">iov</span><span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="p">].</span><span class="n" style="color: #333;">iov_base</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">auth</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC480" class="line" lang="c"> <span class="n" style="color: #333;">memcpy</span><span class="p">(</span><span class="n" style="color: #333;">authtmp</span><span class="p">,</span> <span class="n" style="color: #333;">auth</span><span class="p">,</span> <span class="n" style="color: #333;">auth_size</span><span class="p">);</span></span>
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<p dir="auto">Why do you think the memcpy is needed here? The kernel should only read the buffer</p>
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