Important: kernel security and bug fix update

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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

Security Fix(es):

• kernel: memory corruption in AX88179_178A based USB ethernet device. (CVE-2022-2964)
• kernel: i915: Incorrect GPU TLB flush can lead to random memory access (CVE-2022-4139)

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):

• fix for "CoW after fork() issue" aka "vmsplice child -> parent attack" aka "GUP after fork bug" (BZ#2137547)
• After upgrading to ocp4.11.1, our dpdk application using vlan strip offload is not working (BZ#2138207)
• i40e sriov virtual functions not created (BZ#2140103)
• net/ice: VIRTCHNL_OP_CONFIG_VSI_QUEUES command handling failure with in-tree driver (BZ#2142019)
• HPE: Premature swapping with swappiness=0 while there’s still plenty of pagecache to be reclaimed. (BZ#2151634)
• The "kernel BUG at mm/usercopy.c:103!" from BZ 2041529 is back on rhel-8.5 (BZ#2153232)
• Azure: Sometimes newly deployed VMs are not getting accelerated network during provisioning (BZ#2155274)
• Azure: VM Deployment Failures Patch Request (BZ#2155282)
• RHEL 8.8: Backport upstream patches to reduce memory cgroup memory consumption and OOM problem (BZ#2157924)
• RHEL 8.5: Backport upstream memory cgroup commits up to v5.12 (BZ#2158049)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.4 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.4 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.4 x86_64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.4 aarch64

Fixes

• BZ - 2067482 - CVE-2022-2964 kernel: memory corruption in AX88179_178A based USB ethernet device.
• BZ - 2147572 - CVE-2022-4139 kernel: i915: Incorrect GPU TLB flush can lead to random memory access

CVEs

• CVE-2022-2964
• CVE-2022-4139

References

• https://access.redhat.com/security/updates/classification/#important