An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.
https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-06
https://security.netapp.com/advisory/ntap-20230113-0006/
https://lore.kernel.org/linux-media/20221115131822.6640-5-imv4bel%40gmail.com/
https://lore.kernel.org/linux-media/20221115131822.6640-1-imv4bel%40gmail.com/