pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.
https://www.debian.org/security/2022/dsa-5096
https://www.debian.org/security/2022/dsa-5050
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
https://github.com/torvalds/linux/commit/bcd0f93353326954817a4f9fa55ec57fb38acbb0