Unprivileged attackers can gain root privileges by exploiting a local privilege escalation (LPE) vulnerability in default configurations of the Linux Kernel's filesystem layer on vulnerable devices.
Maybe security researchers currently focus on more security-related bugs which aren’t obvious at all, maybe it’s just a statistical accumulation of critical patches. Critical vulnerabilities get much more press nowadays and the researchers make up fancy names and webpages for their bugs.
In my opinion, it’s just a coincidence that you notice more of those vulnerabilities this year.
A few months ago, the University of Minnesota got themselves banned for submitting faulty patches to the Kernel.
Maybe security researchers currently focus on more security-related bugs which aren’t obvious at all, maybe it’s just a statistical accumulation of critical patches. Critical vulnerabilities get much more press nowadays and the researchers make up fancy names and webpages for their bugs.
In my opinion, it’s just a coincidence that you notice more of those vulnerabilities this year.