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Ubuntu Security Notice USN-6211-1
July 07, 2023

linux-azure regression
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

The system could show undesired warning messages in certain conditions.

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

Details:

USN-6130-1 fixed vulnerabilities in the Linux kernel. Unfortunately, that
update introduced a spurious warning in the IPv6 subsystem. This update
removes the undesired warning message.

Update instructions:

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

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   linux-image-4.15.0-1167-azure   4.15.0-1167.182~14.04.1
   linux-image-azure               4.15.0.1167.133

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.

References:
   https://ubuntu.com/security/notices/USN-6211-1
   https://launchpad.net/bugs/2020279