A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.
https://bugzilla.redhat.com/show_bug.cgi?id=2000694
https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
https://security.netapp.com/advisory/ntap-20221007-0001/
https://ubuntu.com/security/CVE-2021-3772