The vendor has published 1 unique mention(s) for this bug: 1. The smart card service leaks file descriptors during smart card authentication, leading to a blockage of new smart card access. This issue occurs because, by default, most Linux distributions limit the maximum number of open files to 1,024 for each process. When the smart card service exhausts this limit, it can no longer establish new connections, effectively blocking subsequent smart card access. This issue affects VDAs with smart card logon enabled. Symptoms include numerous Failed to accept new connection: Too many open files errors in /var/log/xdl/hdx.log and an accumulation of file descriptors in /proc/\${pid}/fd/, where \${pid} represents the process ID of ctxscardsd. To determine the PID, use the command systemctl status ctxscardsd\|grep PID. To mitigate this issue, you can either increase the maximum open files limit for the smart card service or restart the smart card service. Ensure that there are no active sessions before attempting to restart the service. Use the following commands to increase the limit or restart the service: To restart the smart card service: systemctl restart ctxscardsd To query the current service max open files: cat /proc/${PID}/limits To set the maximum open files for the smart card service: Open the ctxscardsd.service file in read-only mode to check the current settings: vim -R /lib/systemd/system/ctxscardsd.service Add the following line to the Service section in ctxscardsd.service to increase the limit: LimitNOFILE=65536 Reload the systemd daemon and restart the ctxscardsd service: systemctl daemon-reload systemctl restart ctxscardsd Verify the new limit: cat /proc/${PID}/limits Note: Increasing the max open files can extend the time before running out of file descriptors, but a restart of ctxscardsd might still be necessary eventually. Latest urls for this bug: 1. https://docs.citrix.com/us/en/linux-virtual-delivery-agent/2407/whats-new/known-issues.html 2. https://docs.citrix.com/us/en/linux-virtual-delivery-agent/2411/whats-new/fixed-issues.html