Description: media: dvb-core: Fix use-after-free due to race condition occurring in dvb_ca_en50221
References:
 https://lore.kernel.org/linux-media/20221121063308.GA33821%40ubuntu/T/#u
Notes:
 carnil> Negligible security impact, would need physical access to
 carnil> "exploit"
Bugs:
upstream: released (6.4-rc3) [280a8ab81733da8bc442253c700a52c4c0886ffd]
6.1-upstream-stable: released (6.1.33) [d5d61f747e3f1ff9042db66896f2f90afa5f3197]
5.10-upstream-stable: released (5.10.183) [76169f7490899d74aad4b0e2c4c1b9d4904dd01f]
4.19-upstream-stable: released (4.19.285) [8624c7e048fa9ba584b7ba43715090ab1aed765c]
sid: released (6.3.7-1)
6.1-bookworm-security: released (6.1.37-1)
5.10-bullseye-security: released (5.10.191-1)
4.19-buster-security: released (4.19.289-1)