Ubuntu 23.04: USN-6412-1 Moderate: Kernel Security Enhancements

ubuntu

October 4, 2023

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-kvm: Linux kernel for cloud environments

- linux-lowlatency: Linux low latency kernel

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-raspi: Linux kernel for Raspberry Pi systems

- linux-starfive: Linux kernel for StarFive processors

- linux-aws-6.2: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure-6.2: Linux kernel for Microsoft Azure cloud systems

- linux-azure-fde-6.2: Linux kernel for Microsoft Azure CVM cloud systems

- linux-gcp-6.2: Linux kernel for Google Cloud Platform (GCP) systems

- linux-hwe-6.2: Linux hardware enablement (HWE) kernel

- linux-lowlatency-hwe-6.2: Linux low latency kernel

Details:

Hyunwoo Kim discovered that...

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Topics Covered

security advisory denial of service ubuntu system crash linux kernel

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.04:
   linux-image-6.2.0-1006-starfive  6.2.0-1006.7
   linux-image-6.2.0-1013-aws      6.2.0-1013.13
   linux-image-6.2.0-1013-oracle   6.2.0-1013.13
   linux-image-6.2.0-1014-azure    6.2.0-1014.14
   linux-image-6.2.0-1014-kvm      6.2.0-1014.14
   linux-image-6.2.0-1014-lowlatency  6.2.0-1014.14
   linux-image-6.2.0-1014-lowlatency-64k  6.2.0-1014.14
   linux-image-6.2.0-1014-raspi    6.2.0-1014.16
   linux-image-6.2.0-1016-gcp      6.2.0-1016.18
   linux-image-6.2.0-34-generic    6.2.0-34.34
   linux-image-6.2.0-34-generic-64k  6.2.0-34.34
   linux-image-6.2.0-34-generic-lpae  6.2.0-34.34
   linux-image-aws                 6.2.0.1013.14
   linux-image-azure               6.2.0.1014.14
   linux-image-gcp                 6.2.0.1016.16
   linux-image-generic             6.2.0.34.34
   linux-image-generic-64k         6.2.0.34.34
   linux-image-generic-lpae        6.2.0.34.34
   linux-image-kvm                 6.2.0.1014.14
   linux-image-lowlatency          6.2.0.1014.14
   linux-image-lowlatency-64k      6.2.0.1014.14
   linux-image-oracle              6.2.0.1013.13
   linux-image-raspi               6.2.0.1014.17
   linux-image-raspi-nolpae        6.2.0.1014.17
   linux-image-starfive            6.2.0.1006.9
   linux-image-virtual             6.2.0.34.34

Ubuntu 22.04 LTS:
   linux-image-6.2.0-1013-aws      6.2.0-1013.13~22.04.1
   linux-image-6.2.0-1014-azure    6.2.0-1014.14~22.04.1
   linux-image-6.2.0-1014-azure-fde  6.2.0-1014.14~22.04.1.1
   linux-image-6.2.0-1014-lowlatency  6.2.0-1014.14~22.04.1
   linux-image-6.2.0-1014-lowlatency-64k  6.2.0-1014.14~22.04.1
   linux-image-6.2.0-1016-gcp      6.2.0-1016.18~22.04.1
   linux-image-6.2.0-34-generic    6.2.0-34.34~22.04.1
   linux-image-6.2.0-34-generic-64k  6.2.0-34.34~22.04.1
   linux-image-6.2.0-34-generic-lpae  6.2.0-34.34~22.04.1
   linux-image-aws                 6.2.0.1013.13~22.04.1
   linux-image-azure               6.2.0.1014.14~22.04.1
   linux-image-azure-fde           6.2.0.1014.14~22.04.1.11
   linux-image-gcp                 6.2.0.1016.18~22.04.1
   linux-image-generic-64k-hwe-22.04  6.2.0.34.34~22.04.11
   linux-image-generic-hwe-22.04   6.2.0.34.34~22.04.11
   linux-image-generic-lpae-hwe-22.04  6.2.0.34.34~22.04.11
   linux-image-lowlatency-64k-hwe-22.04  6.2.0.1014.14~22.04.11
   linux-image-lowlatency-hwe-22.04  6.2.0.1014.14~22.04.11
   linux-image-virtual-hwe-22.04   6.2.0.34.34~22.04.11

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.