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<a href="https://gitlab.com/dueno">Daiki Ueno</a> created an issue <a href="https://gitlab.com/gnutls/gnutls/-/issues/1188">#1188</a>:
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<p dir="auto">On Unix, if <code>getrandom</code> syscall is not available, <code>/dev/urandom</code> is used as a random seed. For some reason, we keep the file descriptor open during the process lifetime and that caused <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=760476" rel="nofollow noreferrer noopener" target="_blank">issues</a> in the past.</p>
<p dir="auto">In the first place, however, <code>read</code> from that device is rare: only for the initial seeding and reseeding after the limit of DRBG. We probably should make the device access one-shot (i.e., do <code>open</code>/<code>close</code> every time), like other libraries do.</p>
<p dir="auto">See <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1383#note_519494090" data-original="https://gitlab.com/gnutls/gnutls/-/merge_requests/1383#note_519494090" data-link="false" data-link-reference="true" data-project="179611" data-merge-request="86731749" data-project-path="gnutls/gnutls" data-iid="1383" data-mr-title="tests: enable all tests to run under valgrind" data-reference-type="merge_request" data-container="body" data-placement="top" title="" class="gfm gfm-merge_request">!1383 (comment 519494090)</a> for the discussion.</p>
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