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<p style="color: #777777;">
<a href="https://gitlab.com/gjasny" style="color: #1068bf;">Gregor Jasny</a>
<a href="https://gitlab.com/gnutls/gnutls/-/issues/1282#note_991427169" style="color: #1068bf;">commented</a>:
</p>
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<p dir="auto" style="color: #303030; margin: 0 0 16px;" align="initial">I hit the same bug in Ubuntu 22.04 (<code style='font-size: 90%; color: #1f1f1f; word-wrap: break-word; background-color: #f0f0f0; border-radius: 4px; margin-top: 0; font-weight: inherit; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 2px 4px;'>3.7.3-4ubuntu1</code>) which is supposed to be fixed.</p>
<h1 dir="auto" style="font-size: 1.75em; font-weight: 600; padding-bottom: 0.3em; border-bottom-width: 1px; border-bottom-color: #eaeaea; border-bottom-style: solid; color: #303030; margin: 24px 0 16px;" align="initial">
<a id="user-content-environment" class="anchor" href="#environment" aria-hidden="true" style="color: #1068bf; margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>environment</h1>
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<li style="margin-top: 0; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">Ubuntu 22.04</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">libgnutls30:amd64 3.7.3-4ubuntu1</li>
</ul>
<h1 dir="auto" style="font-size: 1.75em; font-weight: 600; padding-bottom: 0.3em; border-bottom-width: 1px; border-bottom-color: #eaeaea; border-bottom-style: solid; color: #303030; margin: 24px 0 16px;" align="initial">
<a id="user-content-testcase" class="anchor" href="#testcase" aria-hidden="true" style="color: #1068bf; margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>testcase</h1>
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<pre class="code highlight js-syntax-highlight language-plaintext" lang="plaintext" v-pre="true" style='display: block; font-size: 13px; color: #303030; line-height: 1.6em; overflow-x: auto; border-radius: 2px; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; margin: 0 0 16px; padding: 12px; border: 1px solid #dbdbdb;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="plaintext" style="margin-top: 0;">gnutls-cli github.com:443</span></code></pre>
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<h1 dir="auto" style="font-size: 1.75em; font-weight: 600; padding-bottom: 0.3em; border-bottom-width: 1px; border-bottom-color: #eaeaea; border-bottom-style: solid; color: #303030; margin: 24px 0 16px;" align="initial">
<a id="user-content-dmesg" class="anchor" href="#dmesg" aria-hidden="true" style="color: #1068bf; margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>dmesg</h1>
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<pre class="code highlight js-syntax-highlight language-plaintext" lang="plaintext" v-pre="true" style='display: block; font-size: 13px; color: #303030; line-height: 1.6em; overflow-x: auto; border-radius: 2px; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; margin: 0 0 16px; padding: 12px; border: 1px solid #dbdbdb;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="plaintext" style="margin-top: 0;">[20561.492164] traps: gnutls-cli[13879] trap invalid opcode ip:7f58f0bbc8b1 sp:7fffc5ac0500 error:0 in libgnutls.so.30.31.0[7f58f0a9b000+129000]</span></code></pre>
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<h1 dir="auto" style="font-size: 1.75em; font-weight: 600; padding-bottom: 0.3em; border-bottom-width: 1px; border-bottom-color: #eaeaea; border-bottom-style: solid; color: #303030; margin: 24px 0 16px;" align="initial">
<a id="user-content-backtrace-with-ddebs-installed" class="anchor" href="#backtrace-with-ddebs-installed" aria-hidden="true" style="color: #1068bf; margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>backtrace (with ddebs installed)</h1>
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<pre class="code highlight js-syntax-highlight language-plaintext" lang="plaintext" v-pre="true" style='display: block; font-size: 13px; color: #303030; line-height: 1.6em; overflow-x: auto; border-radius: 2px; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; margin: 0 0 16px; padding: 12px; border: 1px solid #dbdbdb;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="plaintext" style="margin-top: 0;">#0  sha256_block_data_order_avx () at ../../../../lib/accelerated/x86/elf/sha256-ssse3-x86_64.s:3165</span>
<span id="LC2" class="line" lang="plaintext">#1  0x00007ffff7ee9782 in x86_sha256_update (ctx=0x7fffffff77e0, length=64, data=0x7fffffff7720 '\\' <repeats 64 times>, "\300w\377\377\377\177")</span>
<span id="LC3" class="line" lang="plaintext">    at accelerated/x86/../../../../lib/accelerated/x86/sha-x86-ssse3.c:164</span>
<span id="LC4" class="line" lang="plaintext">#2  0x00007ffff776ecc2 in nettle_hmac_set_key () from /lib/x86_64-linux-gnu/libnettle.so.8</span>
<span id="LC5" class="line" lang="plaintext">#3  0x00007ffff7ef1c1b in wrap_x86_hmac_fast (algo=<optimized out>, nonce=<optimized out>, nonce_size=<optimized out>, key=0x7ffff7f3f583, key_size=0, </span>
<span id="LC6" class="line" lang="plaintext">    text=0x7fffffff7b00, text_size=32, digest=0x555555608f18) at accelerated/x86/../../../../lib/accelerated/x86/hmac-x86-ssse3.c:294</span>
<span id="LC7" class="line" lang="plaintext">#4  0x00007ffff7e1d355 in _gnutls_mac_fast (algorithm=<optimized out>, key=<optimized out>, keylen=<optimized out>, text=<optimized out>, textlen=<optimized out>, </span>
<span id="LC8" class="line" lang="plaintext">    digest=<optimized out>) at ../../lib/hash_int.c:167</span>
<span id="LC9" class="line" lang="plaintext">#5  0x00007ffff7e58056 in _tls13_init_secret2 (prf=0x7ffff7fb21d0 <hash_algorithms.lto_priv+112>, psk=<optimized out>, psk_size=32, out=0x555555608f18)</span>
<span id="LC10" class="line" lang="plaintext">    at ../../lib/secrets.c:59</span>
<span id="LC11" class="line" lang="plaintext">#6  0x00007ffff7e10617 in _tls13_init_secret (psk=0x0, psk_size=0, session=0x555555607790) at ../../lib/secrets.c:35</span>
<span id="LC12" class="line" lang="plaintext">#7  read_server_hello (datalen=<optimized out>, </span>
<span id="LC13" class="line" lang="plaintext">    data=0x5555558c6470 "\003\003\325\312`\342\333\361p\270\331gC~߲&\211Q\035\006\262so2=+XR\230c`\367\213 \213\306Ċ\346\064\"!\343\v^\211\254niq\261\374\225\265\252b\033m\351UA\325X\213'{\023\001", session=0x555555607790) at ../../lib/handshake.c:2097</span>
<span id="LC14" class="line" lang="plaintext">#8  _gnutls_recv_handshake (session=0x555555607790, type=<optimized out>, optional=<optimized out>, buf=0x0) at ../../lib/handshake.c:1656</span>
<span id="LC15" class="line" lang="plaintext">#9  0x00007ffff7e18d4a in handshake_client (session=0x555555607790) at ../../lib/handshake.c:3072</span>
<span id="LC16" class="line" lang="plaintext">#10 gnutls_handshake (session=0x555555607790) at ../../lib/handshake.c:2871</span>
<span id="LC17" class="line" lang="plaintext">#11 0x00005555555651e7 in ?? ()</span>
<span id="LC18" class="line" lang="plaintext">#12 0x00005555555658d8 in ?? ()</span>
<span id="LC19" class="line" lang="plaintext">#13 0x000055555555de2c in ?? ()</span>
<span id="LC20" class="line" lang="plaintext">#14 0x00007ffff7addd90 in __libc_start_call_main (main=main@entry=0x55555555d5b0, argc=argc@entry=2, argv=argv@entry=0x7fffffffe458)</span>
<span id="LC21" class="line" lang="plaintext">    at ../sysdeps/nptl/libc_start_call_main.h:58</span>
<span id="LC22" class="line" lang="plaintext">#15 0x00007ffff7adde40 in __libc_start_main_impl (main=0x55555555d5b0, argc=2, argv=0x7fffffffe458, init=<optimized out>, fini=<optimized out>, </span>
<span id="LC23" class="line" lang="plaintext">    rtld_fini=<optimized out>, stack_end=0x7fffffffe448) at ../csu/libc-start.c:392</span>
<span id="LC24" class="line" lang="plaintext">#16 0x000055555555ff85 in ?? ()</span></code></pre>
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<h1 dir="auto" style="font-size: 1.75em; font-weight: 600; padding-bottom: 0.3em; border-bottom-width: 1px; border-bottom-color: #eaeaea; border-bottom-style: solid; color: #303030; margin: 24px 0 16px;" align="initial">
<a id="user-content-disassembly" class="anchor" href="#disassembly" aria-hidden="true" style="color: #1068bf; margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>disassembly</h1>
<div class="gl-relative markdown-code-block js-markdown-code" style="margin-bottom: 0;">
<pre class="code highlight js-syntax-highlight language-plaintext" lang="plaintext" v-pre="true" style='display: block; font-size: 13px; color: #303030; line-height: 1.6em; overflow-x: auto; border-radius: 2px; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; margin: 0 0 16px; padding: 12px; border: 1px solid #dbdbdb;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="plaintext" style="margin-top: 0;">Dump of assembler code for function sha256_block_data_order_avx:</span>
<span id="LC2" class="line" lang="plaintext">   0x00007ffff7f1c880 <+0>:      mov    %rsp,%rax</span>
<span id="LC3" class="line" lang="plaintext">   0x00007ffff7f1c883 <+3>:      push   %rbx</span>
<span id="LC4" class="line" lang="plaintext">   0x00007ffff7f1c884 <+4>:      push   %rbp</span>
<span id="LC5" class="line" lang="plaintext">   0x00007ffff7f1c885 <+5>:      push   %r12</span>
<span id="LC6" class="line" lang="plaintext">   0x00007ffff7f1c887 <+7>:      push   %r13</span>
<span id="LC7" class="line" lang="plaintext">   0x00007ffff7f1c889 <+9>:      push   %r14</span>
<span id="LC8" class="line" lang="plaintext">   0x00007ffff7f1c88b <+11>:     push   %r15</span>
<span id="LC9" class="line" lang="plaintext">   0x00007ffff7f1c88d <+13>:     shl    $0x4,%rdx</span>
<span id="LC10" class="line" lang="plaintext">   0x00007ffff7f1c891 <+17>:    sub    $0x60,%rsp</span>
<span id="LC11" class="line" lang="plaintext">   0x00007ffff7f1c895 <+21>:    lea    (%rsi,%rdx,4),%rdx</span>
<span id="LC12" class="line" lang="plaintext">   0x00007ffff7f1c899 <+25>:    and    $0xffffffffffffffc0,%rsp</span>
<span id="LC13" class="line" lang="plaintext">   0x00007ffff7f1c89d <+29>:    mov    %rdi,0x40(%rsp)</span>
<span id="LC14" class="line" lang="plaintext">   0x00007ffff7f1c8a2 <+34>:    mov    %rsi,0x48(%rsp)</span>
<span id="LC15" class="line" lang="plaintext">   0x00007ffff7f1c8a7 <+39>:    mov    %rdx,0x50(%rsp)</span>
<span id="LC16" class="line" lang="plaintext">   0x00007ffff7f1c8ac <+44>:    mov    %rax,0x58(%rsp)</span>
<span id="LC17" class="line" lang="plaintext">=> 0x00007ffff7f1c8b1 <+49>: vzeroupper </span>
<span id="LC18" class="line" lang="plaintext">   0x00007ffff7f1c8b4 <+52>:    mov    (%rdi),%eax</span>
<span id="LC19" class="line" lang="plaintext">   0x00007ffff7f1c8b6 <+54>:    mov    0x4(%rdi),%ebx</span>
<span id="LC20" class="line" lang="plaintext">   0x00007ffff7f1c8b9 <+57>:    mov    0x8(%rdi),%ecx</span></code></pre>
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