A vulnerability exists in Linux kernel which can be exploited by malicious users to cause a denial of service. It seems that calling the svc_listen function in ‘net/atm/svc.c’ twice on the same socket will create unassigned PVC/SVC entries, despite returning EUNATCH.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/72657/linuxkernel-dos.txt
Source: https://packetstormsecurity.com/files/72657/linuxkernel-dos.txt.html