An issue was discovered in the Linux kernel through 6.0.10. In drivers/media/dvb-core/dvb_ca_en50221.c, a use-after-free can occur is there is a disconnect after an open, because of the lack of a wait_event.
https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-06
https://security.netapp.com/advisory/ntap-20230113-0008/
https://lore.kernel.org/linux-media/20221121063308.GA33821%40ubuntu/T/#u