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Merge 5a7fae71cbb57e44ec01f92ecbb221a43e91885d into 3bb373867917b674265067cbd38b9d252c43d014
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3566de8db9
@ -782,6 +782,12 @@ static int ssl_tls13_parse_supported_versions_ext(mbedtls_ssl_context *ssl,
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MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, 1);
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versions_len = p[0];
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/* RFC 8446, Section 4.2.1 (versions<2..254>) and Section 3.4
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* (vector length must be a multiple of the element size). */
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if ( (versions_len < 2) || (versions_len > 254) || (versions_len % 2 != 0))
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return MBEDTLS_ERR_SSL_DECODE_ERROR;
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p += 1;
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MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, versions_len);
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