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<a href="https://gitlab.com/Fanny-wen">Fanny-wen</a> created an issue: <a href="https://gitlab.com/gnutls/libtasn1/-/issues/53">#53</a>
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<h2 dir="auto" style="margin-top: 0; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#description-of-problem" aria-hidden="true" class="anchor" id="user-content-description-of-problem" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Description of problem:</h2>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">run out of memory at asn1Coding _asn1_add_single_node</p>
<h2 dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#version-of-libtasn1-used" aria-hidden="true" class="anchor" id="user-content-version-of-libtasn1-used" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Version of libtasn1 used:</h2>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">version:4.19.0.39-99e3</p>
<h2 dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#distributor-of-libtasn1-eg-ubuntu-fedora-rhel" aria-hidden="true" class="anchor" id="user-content-distributor-of-libtasn1-eg-ubuntu-fedora-rhel" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Distributor of libtasn1 (e.g., Ubuntu, Fedora, RHEL)</h2>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">env: ubuntu20.04</p>
<h2 dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#how-reproducible" aria-hidden="true" class="anchor" id="user-content-how-reproducible" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>How reproducible:</h2>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">Steps to Reproduce:</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0 0 1rem; padding: 0;">
<li style="margin-top: 0; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">one ：use afl-gcc compile libasan1 with AFL_USE_ASAN=1</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">tow ：asn1Coding poc /path/to/libasan1/example/asn1Coding_test.asg --output=/dev/null</li>
</ul>
<h2 dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#actual-results" aria-hidden="true" class="anchor" id="user-content-actual-results" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Actual results:</h2>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">==1837==ERROR: AddressSanitizer: allocator is out of memory trying to allocate 0x98 bytes
#0 0x7f0e170b9a06 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:153
<a href="https://gitlab.com/gnutls/libtasn1/-/issues/1" data-reference-type="issue" data-original="#1" data-link="false" data-link-reference="false" data-issue="9021473" data-project="919981" data-iid="1" data-namespace-path="gnutls/libtasn1" data-project-path="gnutls/libtasn1" data-issue-type="issue" data-container="body" data-placement="top" title="First test issue" class="gfm gfm-issue" style="margin-top: 0;">#1 (closed)</a> 0x5586fcfb1867 in _asn1_add_single_node /home/compiler/libtasn1-asan/lib/structure.c:52
<a href="https://gitlab.com/gnutls/libtasn1/-/issues/2" data-reference-type="issue" data-original="#2" data-link="false" data-link-reference="false" data-issue="9573481" data-project="919981" data-iid="2" data-namespace-path="gnutls/libtasn1" data-project-path="gnutls/libtasn1" data-issue-type="issue" data-container="body" data-placement="top" title="auto-generate manual" class="gfm gfm-issue">#2 (closed)</a> 0x5586fcfb1867 in _asn1_copy_structure3 /home/compiler/libtasn1-asan/lib/structure.c:458
==1837==HINT: if you don't care about these errors you may set allocator_may_return_null=1
SUMMARY: AddressSanitizer: out-of-memory ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:153 in __interceptor_calloc
==1837==ABORTING</p>
<h2 dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#expected-results" aria-hidden="true" class="anchor" id="user-content-expected-results" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Expected results:</h2>
<h2 dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; border-bottom-style: solid; border-bottom-color: #dcdcde; font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d; border-bottom-width: 1px; padding-bottom: 0.25rem;" align="initial">
<a href="#poc" aria-hidden="true" class="anchor" id="user-content-poc" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>poc：</h2>
<p dir="auto" style="color: #3a383f; margin: 0;" align="initial"><a href="https://gitlab.com/-/project/919981/uploads/304efcdb1442e2575708592bc0000163/poc.zip_c9b49f41-24d6-42ac-9e5c-c016928bfed1.zip" data-canonical-src="/uploads/304efcdb1442e2575708592bc0000163/poc.zip_c9b49f41-24d6-42ac-9e5c-c016928bfed1.zip" data-link="true" class="gfm" style="margin-top: 0;">poc.zip_c9b49f41-24d6-42ac-9e5c-c016928bfed1.zip</a></p>
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