kernel is vulnerable to denial of service. The vulnerability exists due to a race condition for removal of HCI controller.
www.openwall.com/lists/oss-security/2021/05/11/2
access.redhat.com/errata/RHSA-2021:2714
access.redhat.com/security/updates/classification/#important
access.redhat.com/security/vulnerabilities/RHSB-2021-006
bugzilla.redhat.com/show_bug.cgi?id=1970807
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e2cb6b891ad2b8caa9131e3be70f45243df82a80
github.com/torvalds/linux/commit/e2cb6b891ad2b8caa9131e3be70f45243df82a80
lists.debian.org/debian-lts-announce/2021/06/msg00019.html
lists.debian.org/debian-lts-announce/2021/06/msg00020.html
security.netapp.com/advisory/ntap-20210622-0006/