kernel: media: em28xx: initialize refcount before kref_get

A use-after-free flaw was found in the Linux kernel’s video4linux driver in how a user triggers the em28xxusbprobe for the Empia 28xx-based TV cards. This flaw allows a local user to crash or potentially escalate their privileges on the system...

UBUNTU-CVE-2022-3239

A flaw use after free in the Linux kernel video4linux driver was found in the way user triggers em28xxusbprobe for the Empia 28xx based TV cards. A local user could use this flaw to crash the system or potentially escalate their privileges on the system...