RHSA-2021:3447: Important: kernel security and bug fix update

First published: Tue Sep 07 2021(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)</li> <li> kernel: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c (CVE-2021-38201)</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> Update Broadcom Emulex lpfc driver for RHEL8.5 with bug fixes (BZ#1948608)</li> <li> cyclictest shows &gt;50us latency when guest enters idle (RT guest with 18 RT vCPUs) (BZ#1981336)</li> <li> xfrm: backports from upstream (BZ#1981840)</li> <li> A task is stuck waiting for the completion of the vmci_resouce releasing upon the balloon reset. (BZ#1982042)</li> <li> [mlx5] backport driver bits of net: zero-initialize tc skb extension on allocation (BZ#1982220)</li> <li> Kernel cannot kill a process doing compaction for hugepage allocation (BZ#1984085)</li> <li> RHEL8.4 Nightly[0108] - [P10] [Regression] Kdump failed on RHEL8.4 on SAN disk via flavafish adapter (qla2xxx/HPT/Radix) (BZ#1986156)</li> <li> [RHEL8.5] scheduler updates and fixes (BZ#1987296)</li> <li> RHEL 8.3 using FCOE via a FastLinQ QL45000 card will not manually scan in LUN from Target_id's over 8 (BZ#1989097)</li> <li> fixes for oopses in security mitigation runtime code patching (BZ#1989174)</li> <li> act mirred doesn't scrub packets when sending them to ingress (BZ#1992226)</li> <li> HPE: Cannot install 8.4 using the DVD presented to the iLO (BZ#1993894)</li> <li> NFS client hangs on share listing when server side readdir verifiers are implemented (BZ#1993895)</li> <li> SNO: The load is extremely high (~870) when pao is added and a profile is applied. (BZ#1994879)</li> <li> timeout value of conntrack entry with TCP ESTABLISHED status is too short (BZ#1995554)</li> <li> Increase the default value for flowtable offload timeouts (BZ#1995555)</li> <li> ice/iavf driver stop responding (BZ#1997534)</li> <li> [FJ8.4 Bug]: [REG] Some files in /proc/sys/user show wrong data (BZ#1998002)</li>

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

• agent/severity
• agent/references
• agent/type
• agent/last-modified-date
• agent/softwarecombine
• agent/first-publish-date
• agent/remedy
• agent/title
• agent/tags
• agent/description
• agent/event
• collector/redhat-errata
• source/Red Hat
• anchor-id/RHSA-2021:3447
• agent/software-canonical-lookup
• package-manager/redhat