RHSA-2021:2168: Important: kernel security and bug fix update

First published: Tue Jun 01 2021(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu-&gt;run (CVE-2021-3501)</li> <li> kernel: nitro_enclaves stale file descriptors on failed usercopy (CVE-2021-3543)</li> 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.<br>Bug Fix(es):<br><li> OVS mistakenly using local IP as tun_dst for VXLAN packets (?) (BZ#1944667)</li> <li> Selinux: The task calling security_set_bools() deadlocks with itself when it later calls selinux_audit_rule_match(). (BZ#1945123)</li> <li> [mlx5] tc flower mpls match options does not work (BZ#1952061)</li> <li> mlx5: missing patches for ct.rel (BZ#1952062)</li> <li> CT HWOL: with OVN/OVS, intermittently, load balancer hairpin TCP packets get dropped for seconds in a row (BZ#1952065)</li> <li> [Lenovo 8.3 bug] Blackscreen after clicking on "Settings" icon from top-right corner. (BZ#1952900)</li> <li> RHEL 8.x missing uio upstream fix. (BZ#1952952)</li> <li> Turbostat doesn't show any measured data on AMD Milan (BZ#1952987)</li> <li> P620 no sound from front headset jack (BZ#1954545)</li> <li> RHEL kernel 8.2 and higher are affected by data corruption bug in raid1 arrays using bitmaps. (BZ#1955188)</li> <li> [net/sched] connection failed with DNAT + SNAT by tc action ct (BZ#1956458)</li>

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