A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data.
https://usn.ubuntu.com/4485-1/
https://usn.ubuntu.com/4440-1/
https://usn.ubuntu.com/4439-1/
https://usn.ubuntu.com/4427-1/
https://usn.ubuntu.com/4411-1/
https://twitter.com/grsecurity/status/1252558055629299712
https://security.netapp.com/advisory/ntap-20210129-0005/
https://lore.kernel.org/lkml/CAG_fn=VZZ7yUxtOGzuTLkr7wmfXWtKK9BHHYawj=rt9XWnCYvg%40mail.gmail.com/
https://github.com/ruscur/linux/commit/a95cdec9fa0c08e6eeb410d461c03af8fd1fef0a
https://github.com/google/kmsan/issues/76
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10732
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html