kernel-4.18.0-305.7.1.el8_4

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034)
* kernel: security bypass in certs/blacklist.c and certs/system_keyring.c (CVE-2020-26541)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* [ESXi] VMXNET3 v4 causes invalid checksums of inner packets of VXLAN tunnel
* fnic crash from invalid request pointer
* GFS2: Failed FS thaw call makes the entire snapshot failed.
* dm writecache: fix performance degradation in ssd mode
* Kernel BUG with act_ct and IP fragments
* core: backports from upstream
* Hibernate resume on MIRACLE LINUX fails in Amazon EC2 C5.18xlarge instance
* [SanityOnly] panic caused by i40e_msix_clean_rings
* tc reclassification limit is too low for OVN
* tc action ct nat src addr does not work while used with ct nat dst addr together
* CNB: Rebase/update TC subsystem for MIRACLE LINUX
* sctp: crash due to use after free of sctp_transport structure

CVE-2020-26541
The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.
CVE-2021-33034
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.