A kernel security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: kernel-5.15.5-100.fc34

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2021-c0dc424b7d
2021-11-30 01:11:10.752070
--------------------------------------------------------------------------------

Name : kernel
Product : Fedora 34
Version : 5.15.5
Release : 100.fc34
URL :   https://www.kernel.org/
Summary : The Linux kernel
Description :
The kernel meta package

--------------------------------------------------------------------------------
Update Information:

The 5.15.5 stable kernel update contains a number of important fixes across the
tree.
--------------------------------------------------------------------------------
ChangeLog:

* Thu Nov 25 2021 Justin M. Forbes [5.15-0]
- Revert "fuse: fix page stealing" (Justin M. Forbes)
--------------------------------------------------------------------------------
References:

[ 1 ] Bug #2025645 - CVE-2021-4001 kernel: race condition when the EBPF map is frozen
  https://bugzilla.redhat.com/show_bug.cgi?id=2025645
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-c0dc424b7d' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys
--------------------------------------------------------------------------------
_______________________________________________