A kernel-5.11.18-200 security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: kernel-5.11.18-200.fc33

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Fedora Update Notification
FEDORA-2021-4c5bfbfea9
2021-05-08 01:23:04.025959
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Name : kernel
Product : Fedora 33
Version : 5.11.18
Release : 200.fc33
URL :   https://www.kernel.org/
Summary : The Linux kernel
Description :
The kernel meta package

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Update Information:

The 5.11.18 stable kernel update contains a number of important fixes across the
tree.
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ChangeLog:

* Mon May 3 2021 Justin M. Forbes [5.11.18-200]
- nitro_enclaves: Fix stale file descriptors on failed usercopy (Mathias Krause)
* Mon May 3 2021 Justin M. Forbes [5.11.18-0]
- Enable mtdram for fedora (rhbz 1955916) (Justin M. Forbes)
- hardlink is in /usr/bin/ (rhbz 1889043) (Justin M. Forbes)
- sfc: ef10: fix TX queue lookup in TX event handling (Edward Cree)
- sfc: farch: fix TX queue lookup in TX event handling (Edward Cree)
- sfc: farch: fix TX queue lookup in TX flush done handling (Edward Cree)
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References:

[ 1 ] Bug #1953022 - kernel: nitro_enclaves stale file descriptors on failed usercopy
  https://bugzilla.redhat.com/show_bug.cgi?id=1953022
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-4c5bfbfea9' 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