Subj : New Defects reported by Coverity Scan for Synchronet
To   : All
From : scan-admin@coverity.com
Date : Thu Aug 20 2026 12:49:16


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Hi,

Please find the latest report on new defect(s) introduced to Synchronet found with Coverity Scan.

1 new defect(s) introduced to Synchronet found with Coverity Scan.
2 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by Coverity Scan.

New defect(s) Reported-by: Coverity Scan
Showing 1 of 1 defect(s)


** CID 653403:       Insecure data handling  (INTEGER_OVERFLOW)
/userdat.c: 214           in total_users()


_____________________________________________________________________________________________
*** CID 653403:         Insecure data handling  (INTEGER_OVERFLOW)
/userdat.c: 214             in total_users()
208     	   lock is a synchronous round-trip that dominates the cost of this scan
209     	   when the data directory is network-mounted, and no amount of locking
210     	   makes the result more current than the snapshot it already is. */
211     	do {
212     		got = 0;
213     		while (got < bufsize) {
>>>     CID 653403:         Insecure data handling  (INTEGER_OVERFLOW)
>>>     "64000UL - got", which might have underflowed, is passed to "read(file, buf + got, 64000UL - got)".
214     			ssize_t rd = read(file, buf + got, bufsize - got);
215     			if (rd <= 0)
216     				break;
217     			got += (size_t)rd;
218     		}
219     		for (size_t offset = 0; offset + USER_RECORD_LINE_LEN <= got; offset += USER_RECORD_LINE_LEN) {


________________________________________________________________________________________________________
To view the defects in Coverity Scan visit, https://scan.coverity.com/projects/synchronet?tab=overview


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  <title>New Defects Reported - Synchronet</title>
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<body>
  <p>Hi,</p>

  <p>
    Please find the latest report on new defect(s) introduced to <strong>Synchronet</strong>
     found with Coverity Scan.
  </p>

  <ul>
    <li><strong>New Defects Found:</strong> 1</li>
      <li>
        2 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by Coverity Scan.
      </li>
    <li><strong>Defects Shown:</strong> Showing 1 of 1 defect(s)</li>
  </ul>

  <h3>Defect Details</h3>
  <pre>
** CID 653403:       Insecure data handling  (INTEGER_OVERFLOW)
/userdat.c: 214           in total_users()


_____________________________________________________________________________________________
*** CID 653403:         Insecure data handling  (INTEGER_OVERFLOW)
/userdat.c: 214             in total_users()
208     	   lock is a synchronous round-trip that dominates the cost of this scan
209     	   when the data directory is network-mounted, and no amount of locking
210     	   makes the result more current than the snapshot it already is. */
211     	do {
212     		got = 0;
213     		while (got &lt; bufsize) {
&gt;&gt;&gt;     CID 653403:         Insecure data handling  (INTEGER_OVERFLOW)
&gt;&gt;&gt;     &quot;64000UL - got&quot;, which might have underflowed, is passed to &quot;read(file, buf + got, 64000UL - got)&quot;.
214     			ssize_t rd = read(file, buf + got, bufsize - got);
215     			if (rd &lt;= 0)
216     				break;
217     			got += (size_t)rd;
218     		}
219     		for (size_t offset = 0; offset + USER_RECORD_LINE_LEN &lt;= got; offset += USER_RECORD_LINE_LEN) {

  </pre>

  <p>
    <a href="https://scan.coverity.com/projects/synchronet?tab=overview" class="button">View Defects in Coverity Scan</a>
  </p>

  <p>Best regards,</p>
  <p>The Coverity Scan Admin Team</p>
  <img class="logo" width="140" src="https://scan.coverity.com/assets/BlackDuckLogo-6697adc63e07340464201a2ad534d3d3e44f95d36edda20b140440d34f05372f.svg" />
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