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====================================================================                   
Red Hat Security Advisory

Synopsis:          Low: kernel-alt security and bug fix update
Advisory ID:       RHSA-2019:1350-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:1350
Issue date:        2019-06-04
CVE Names:         CVE-2018-13095
====================================================================
1. Summary:

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Low. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

3. Description:

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

* kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c
(CVE-2018-13095)

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):

* [rhel-alt] Could not remove the function from
/sys/kernel/debug/tracing/kprobe_events (BZ#1677171)

* RHEL-ALT-7.6z: usage of stale vma in do_fault() can lead to a crash
(BZ#1679243)

* RHEL-Alt-7.6 - Backport support for software count cache flush Spectre v2
mitigation (BZ#1692682)

* RHEL-Alt-7.6 - [LTC Test][SR-IOV]: Guest with VF pass-through crashes
during reboot operation in a loop. (kvm) (libvirt/kernel) (BZ#1693146)

* RHEL-Alt-7.6 - Tolerate new s390x crypto hardware for migration
(BZ#1695643)

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1597775 - CVE-2018-13095 kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c

6. Package List:

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
kernel-alt-4.14.0-115.8.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.8.1.el7a.aarch64.rpm
perf-4.14.0-115.8.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
python-perf-4.14.0-115.8.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.8.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.8.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.8.1.el7a.ppc64le.rpm
perf-4.14.0-115.8.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.8.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.8.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.8.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.8.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.8.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.8.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.8.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.8.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.8.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.8.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.8.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.8.1.el7a.s390x.rpm
perf-4.14.0-115.8.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.8.1.el7a.s390x.rpm
python-perf-4.14.0-115.8.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.8.1.el7a.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
kernel-debug-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.8.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.8.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.8.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.8.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.8.1.el7a.ppc64le.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-13095
https://access.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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