RHSA-2023:0832: Important: kernel security and bug fix update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222) kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945) kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873) 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): WARNING: CPU: 116 PID: 3440 at arch/x86/mm/extable.c:105 exhandlerfprestore+0x3f/0x50 (BZ#2134586) Hardware error: RIP: copyuserenhancedfaststring+0xe (BZ#2137592) Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel (BZ#2139580) MEI support for Alder Lake-S (BZ#2141783) Host Pod -> Cluster IP Service traffic (Pod Backend - Different Node) Flow Iperf Cannot Connect (BZ#2141959) RHEL8.7: Xorg cannot display resolution higher than 1024x768 on system using ast graphics driver (BZ#2149287) Intel 8.7 Bug: OS doesn't boot when vmd and interrupt remapping are enabled (BZ#2149474) i40e,iavf: SR-IOV VF devices send GARP with wrong MAC address (BZ#2149745) RHEL8.4 - boot: Add secure boot trailer (BZ#2151530) error 524 from seccomp(2) when trying to load filter (BZ#2152138) Workqueue: WQMEMRECLAIM iscsictrl1:98 iscsiunbindsession [scsitransportiscsi] (BZ#2152734) Connectivity issue with vDPA driver (BZ#2152912) High Load average due to cfs cpu throttling (BZ#2153108) The "kernel BUG at mm/usercopy.c:103!" from BZ 2041529 is back on rhel-8.5 (BZ#2153230) RHEL8: tick storm on nohz (isolated) CPU cores (BZ#2153653) kernel BUG: scheduling while atomic: crio/7295/0x00000002 (BZ#2154460) Azure RHEL 8 z-stream: Sometimes newly deployed VMs are not getting accelerated network during provisioning (BZ#2155272) Azure: VM Deployment Failures Patch Request (BZ#2155280) Azure vPCI RHEL-8: add the support of multi-MSI (BZ#2155289) MSFT MANA NET Patch RHEL-8: Fix race on per-CQ variable napiiperf panic fix (BZ#2155437) GSS: OCP 4.10.30 node crash after ODF upgrade : unable to handle kernel NULL pointer dereference at 0000000000000000 : cephgetsnaprealm+0x68/0xa0 [ceph] (BZ#2155797) Error in /usr/src/kernels/4.18.0-423.el8.x8664/scripts/kernel-doc script causing irdma build to fail (BZ#2157905) RHEL8.8: Backport upstream patches to reduce memory cgroup memory consumption and OOM problem (BZ#2157922) The 'date' command shows wrong time in nested KVM s390x guest (BZ#2158813) ethtool -m results in an out-of-bounds slab write in the be2net driver (BZ#2160182) (Redhat OpenShift)Error downloading big ZIP files inside pod on power OCP and pod getting restarted (BZ#2160221) i40e/iavf: VF reset task fails "Never saw reset" with 5 second timeout per VF (BZ#2160460) iavf: It takes long time to create multiple VF interfaces and the VF interface names are not consistent (BZ#2163257)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2023:0832?
The severity of RHSA-2023:0832 is categorized as important.
What vulnerabilities are addressed in RHSA-2023:0832?
RHSA-2023:0832 addresses CVE-2022-41222 (a use-after-free vulnerability) and CVE-2022-43945 (a buffer overflow vulnerability in nfsd).
How do I fix RHSA-2023:0832?
To fix RHSA-2023:0832, update to kernel version 4.18.0-425.13.1.el8_7 or later.
What packages are affected by RHSA-2023:0832?
Affected packages include kernel, bpftool, kernel-core, and other kernel-related packages in version 4.18.0-425.13.1.el8_7.
Is RHSA-2023:0832 applicable to all Linux distributions?
No, RHSA-2023:0832 specifically pertains to Red Hat Enterprise Linux and related distributions.