CVE-2025-37987

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> pds_core: Prevent possible adminq overflow/stuck condition<br /> <br /> The pds_core&amp;#39;s adminq is protected by the adminq_lock, which prevents<br /> more than 1 command to be posted onto it at any one time. This makes it<br /> so the client drivers cannot simultaneously post adminq commands.<br /> However, the completions happen in a different context, which means<br /> multiple adminq commands can be posted sequentially and all waiting<br /> on completion.<br /> <br /> On the FW side, the backing adminq request queue is only 16 entries<br /> long and the retry mechanism and/or overflow/stuck prevention is<br /> lacking. This can cause the adminq to get stuck, so commands are no<br /> longer processed and completions are no longer sent by the FW.<br /> <br /> As an initial fix, prevent more than 16 outstanding adminq commands so<br /> there&amp;#39;s no way to cause the adminq from getting stuck. This works<br /> because the backing adminq request queue will never have more than 16<br /> pending adminq commands, so it will never overflow. This is done by<br /> reducing the adminq depth to 16.