CVE-2020-10781

A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel
module, where a user with a local account and the ability to read the
/sys/class/zram-control/hot_add file can create ZRAM device nodes in the
/dev/ directory. This read allocates kernel memory and is not accounted for
a user that triggers the creation of that ZRAM device. With this
vulnerability, continually reading the device may consume a large amount of
system memory and cause the Out-of-Memory (OOM) killer to activate and
terminate random userspace processes, possibly making the system
inoperable.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=1847832&gt;

Notes