CVE-2025-21673

CVE-2025-21673 affects the Linux kernel CIFS/SMB client logic. The flaw is a double free of TCP_Server_Info::hostname during server shutdown in cifs_put_tcp_session(), where cifsd threads reconnect to multiple DFS targets and may still hold server->hostname, risking use-after-free or kernel in...

Unable to create an SR from a CIFS share containing DFS Targets

Unable to create an SR from a CIFS share containing DFS Targets. When trying to create the SR XenCenter gives an error: Unable to mount the directory specified in device configuration request The following errors can be seen in the logs: daemon.log Apr 6 10:35:04 dubvdodxa65-5 cifs.upcall: unable...