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

Synopsis:          Moderate: kernel-alt security and bug fix update
Advisory ID:       RHSA-2019:0525-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:0525
Issue date:        2019-03-12
CVE Names:         CVE-2018-10876 CVE-2018-11412 
=====================================================================

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 Moderate. 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: out-of-bounds memcpy in fs/ext4/inline.c:ext4_read_inline_data()
with crafted ext4 image (CVE-2018-11412)

* kernel: use-after-free in jbd2_journal_commit_transaction funtion
(CVE-2018-10876)

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):

* blk-mq IO hang in null_blk test (BZ#1581223)

* lpfc remove lpfc_enable_pbde module parameter. (BZ#1615875)

* RHEL-Alt-7.6 - [Power9][DD2.2][4.14.0-109]package installation segfaults
inside debian chroot env in P9 KVM guest with HTM enabled (kvm)
(BZ#1628817)

* Pegas1.1 - [P9] "threads=2" or higher is required to boot up VM with
above 256 vcpu [rhel-alt-7.6.z] (BZ#1634653)

* RHEL-Alt-7.6 Snapshot5 - System crashed under stress-ng & HTX on the mix
mode guest (kvm) (BZ#1637890)

* RHEL-Alt-7.6 - BostonESS:P9:DD2.01 - Testing Ethtool options 'r' and 'p'
for the i40e driver causes the kernel to crash and reboots the server
(i40e) (CORAL) (BZ#1644606)

* RHEL-Alt-7.6 Host/RHV4.2: system crashed and kdump failed to collect CPUs
in KVM guests (BZ#1649196)

* RHEL-Alt-7.6 Host:BostonLC:P9:boslcp1: system crashed in
__find_linux_pte+0xac (kvm) (BZ#1651065)

* [LLNL 7.7 Bug] Rasdaemon doesnat seem to collect APEI errors (BZ#1664495)

Users of kernel are advised to upgrade to these updated packages, which fix
these bugs.

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/):

1582358 - CVE-2018-11412 kernel: out-of-bounds memcpy in fs/ext4/inline.c:ext4_read_inline_data() with crafted ext4 image
1596773 - CVE-2018-10876 kernel: use-after-free in jbd2_journal_commit_transaction funtion

6. Package List:

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

Source:
kernel-alt-4.14.0-115.6.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.6.1.el7a.aarch64.rpm
perf-4.14.0-115.6.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
python-perf-4.14.0-115.6.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.6.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.6.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.6.1.el7a.ppc64le.rpm
perf-4.14.0-115.6.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.6.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.6.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.6.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.6.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.6.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.6.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.6.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.6.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.6.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.6.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.6.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.6.1.el7a.s390x.rpm
perf-4.14.0-115.6.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.6.1.el7a.s390x.rpm
python-perf-4.14.0-115.6.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.6.1.el7a.s390x.rpm

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

aarch64:
kernel-debug-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.6.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.6.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.6.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.6.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.6.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.6.1.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-2018-10876
https://access.redhat.com/security/cve/CVE-2018-11412
https://access.redhat.com/security/updates/classification/#moderate

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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