A kernel security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: kernel-5.13.15-200.fc34

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Fedora Update Notification
FEDORA-2021-4ca1b080bb
2021-09-14 14:59:04.056322
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Name : kernel
Product : Fedora 34
Version : 5.13.15
Release : 200.fc34
URL :   https://www.kernel.org/
Summary : The Linux kernel
Description :
The kernel meta package

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Update Information:

The 5.13.15 stable kernel update contains a number of important fixes across the
tree.
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ChangeLog:

* Wed Sep 8 2021 Justin M. Forbes [5.13.15-200]
- kernel-5.13.15-0 (Justin M. Forbes)
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References:

[ 1 ] Bug #2001951 - CVE-2021-40490 kernel: race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem
  https://bugzilla.redhat.com/show_bug.cgi?id=2001951
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-4ca1b080bb' 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