RHBA-2018:0507 - Bug Fix Advisory

Topic

Updated kernel packages that fix two bugs are now available for Red Hat
Enterprise Linux 6.6 Advanced Update Support.

Description

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

This update fixes the following bugs:

• Previously, the corrupted Executable and Linkable Format (ELF) header of the /proc/vmcore ELF file caused that this file could not be read correctly. As a consequence, the kdump service terminated unexpectedly, resulting in a kernel panic. The provided patch fixes the ELF header, and kdump now succeeds as expected. (BZ#1534619)
• The Return Trampoline (Retpoline) mechanism mitigates the branch target injection, also known as the Spectre variant 2 vulnerability. With this update, Retpoline has been implemented into the Red Hat Enterprise Linux kernel. (BZ#1543024)

Users of kernel are advised to upgrade to these updated packages, which fix these bugs. The system must be rebooted for this update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Affected Products

• Red Hat Enterprise Linux Server - AUS 6.6 x86_64
• Red Hat Enterprise Linux Server - TUS 6.6 x86_64

Fixes

CVEs

(none)

References

(none)