[RHSA-2015:0726-01] Important: kernel security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2015:0726-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-0726.html

Issue date: 2015-03-26

CVE Names: CVE-2014-8159 CVE-2015-1421

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1. Summary:

 

Updated kernel packages that fix two security issues and several bugs are

now available for Red Hat Enterprise Linux 7.

 

Red Hat Product Security has rated this update as having Important security

impact. Common Vulnerability Scoring System (CVSS) base scores, which give

detailed severity ratings, are available for each vulnerability from the

CVE links in the References section.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

 

3. Description:

 

The kernel packages contain the Linux kernel, the core of any Linux

operating system.

 

* It was found that the Linux kernel's Infiniband subsystem did not

properly sanitize input parameters while registering memory regions from

user space via the (u)verbs API. A local user with access to a

/dev/infiniband/uverbsX device could use this flaw to crash the system or,

potentially, escalate their privileges on the system. (CVE-2014-8159,

Important)

 

* A use-after-free flaw was found in the way the Linux kernel's SCTP

implementation handled authentication key reference counting during INIT

collisions. A remote attacker could use this flaw to crash the system or,

potentially, escalate their privileges on the system. (CVE-2015-1421,

Important)

 

Red Hat would like to thank Mellanox for reporting the CVE-2014-8159 issue.

The CVE-2015-1421 issue was discovered by Sun Baoliang of Red Hat.

 

This update also fixes the following bugs:

 

* In certain systems with multiple CPUs, when a crash was triggered on one

CPU with an interrupt handler and this CPU sent Non-Maskable Interrupt

(NMI) to another CPU, and, at the same time, ioapic_lock had already been

acquired, a deadlock occurred in ioapic_lock. As a consequence, the kdump

service could become unresponsive. This bug has been fixed and kdump now

works as expected. (BZ#1197742)

 

* On Lenovo X1 Carbon 3rd Gen, X250, and T550 laptops, the thinkpad_acpi

module was not properly loaded, and thus the function keys and radio

switches did not work. This update applies a new string pattern of BIOS

version, which fixes this bug, and function keys and radio switches now

work as intended. (BZ#1197743)

 

* During a heavy file system load involving many worker threads, all worker

threads in the pool became blocked on a resource, and no manager thread

existed to create more workers. As a consequence, the running processes

became unresponsive. With this update, the logic around manager creation

has been changed to assure that the last worker thread becomes a manager

thread and does not start executing work items. Now, a manager thread

exists, spawns new workers as needed, and processes no longer hang.

(BZ#1197744)

 

* If a thin-pool's metadata enters read-only or fail mode, for example, due

to thin-pool running out of metadata or data space, any attempt to make

metadata changes such as creating a thin device or snapshot thin device

should error out cleanly. However, previously, the kernel code returned

verbose and alarming error messages to the user. With this update, due to

early trapping of attempt to make metadata changes, informative errors are

displayed, no longer unnecessarily alarming the user. (BZ#1197745)

 

* When running Red Hat Enterprise Linux as a guest on Microsoft Hyper-V

hypervisor, the storvsc module did not return the correct error code for

the upper level Small Computer System Interface (SCSI) subsystem. As a

consequence, a SCSI command failed and storvsc did not handle such a

failure properly under some conditions, for example, when RAID devices were

created on top of storvsc devices. An upstream patch has been applied to

fix this bug, and storvsc now returns the correct error code in the

described situation. (BZ#1197749)

 

All kernel users are advised to upgrade to these updated packages, which

contain backported patches to correct these issues. The system must be

rebooted for this update to take effect.

 

4. 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

 

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

 

1181166 - CVE-2014-8159 kernel: infiniband: uverbs: unprotected physical memory access

1196581 - CVE-2015-1421 kernel: net: slab corruption from use after free on INIT collisions

 

6. Package List:

 

Red Hat Enterprise Linux Client (v. 7):

 

Source:

kernel-3.10.0-229.1.2.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.1.2.el7.noarch.rpm

kernel-doc-3.10.0-229.1.2.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-headers-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-3.10.0-229.1.2.el7.x86_64.rpm

perf-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux Client Optional (v. 7):

 

x86_64:

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode (v. 7):

 

Source:

kernel-3.10.0-229.1.2.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.1.2.el7.noarch.rpm

kernel-doc-3.10.0-229.1.2.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-headers-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-3.10.0-229.1.2.el7.x86_64.rpm

perf-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

 

x86_64:

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

kernel-3.10.0-229.1.2.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.1.2.el7.noarch.rpm

kernel-doc-3.10.0-229.1.2.el7.noarch.rpm

 

ppc64:

kernel-3.10.0-229.1.2.el7.ppc64.rpm

kernel-bootwrapper-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debug-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debug-devel-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debuginfo-common-ppc64-3.10.0-229.1.2.el7.ppc64.rpm

kernel-devel-3.10.0-229.1.2.el7.ppc64.rpm

kernel-headers-3.10.0-229.1.2.el7.ppc64.rpm

kernel-tools-3.10.0-229.1.2.el7.ppc64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

kernel-tools-libs-3.10.0-229.1.2.el7.ppc64.rpm

perf-3.10.0-229.1.2.el7.ppc64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

 

s390x:

kernel-3.10.0-229.1.2.el7.s390x.rpm

kernel-debug-3.10.0-229.1.2.el7.s390x.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

kernel-debug-devel-3.10.0-229.1.2.el7.s390x.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

kernel-debuginfo-common-s390x-3.10.0-229.1.2.el7.s390x.rpm

kernel-devel-3.10.0-229.1.2.el7.s390x.rpm

kernel-headers-3.10.0-229.1.2.el7.s390x.rpm

kernel-kdump-3.10.0-229.1.2.el7.s390x.rpm

kernel-kdump-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

kernel-kdump-devel-3.10.0-229.1.2.el7.s390x.rpm

perf-3.10.0-229.1.2.el7.s390x.rpm

perf-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

 

x86_64:

kernel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-headers-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-3.10.0-229.1.2.el7.x86_64.rpm

perf-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

kernel-3.10.0-229.1.2.ael7b.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.1.2.ael7b.noarch.rpm

kernel-doc-3.10.0-229.1.2.ael7b.noarch.rpm

 

ppc64le:

kernel-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-bootwrapper-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debug-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debuginfo-common-ppc64le-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-devel-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-headers-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-tools-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-tools-libs-3.10.0-229.1.2.ael7b.ppc64le.rpm

perf-3.10.0-229.1.2.ael7b.ppc64le.rpm

perf-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

python-perf-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

 

Red Hat Enterprise Linux Server Optional (v. 7):

 

ppc64:

kernel-debug-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

kernel-debuginfo-common-ppc64-3.10.0-229.1.2.el7.ppc64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

kernel-tools-libs-devel-3.10.0-229.1.2.el7.ppc64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

python-perf-3.10.0-229.1.2.el7.ppc64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

kernel-debuginfo-common-s390x-3.10.0-229.1.2.el7.s390x.rpm

kernel-kdump-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

perf-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

python-perf-3.10.0-229.1.2.el7.s390x.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 7):

 

ppc64le:

kernel-debug-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debug-devel-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-debuginfo-common-ppc64le-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

kernel-tools-libs-devel-3.10.0-229.1.2.ael7b.ppc64le.rpm

perf-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

python-perf-3.10.0-229.1.2.ael7b.ppc64le.rpm

python-perf-debuginfo-3.10.0-229.1.2.ael7b.ppc64le.rpm

 

Red Hat Enterprise Linux Workstation (v. 7):

 

Source:

kernel-3.10.0-229.1.2.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.1.2.el7.noarch.rpm

kernel-doc-3.10.0-229.1.2.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debug-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-devel-3.10.0-229.1.2.el7.x86_64.rpm

kernel-headers-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-3.10.0-229.1.2.el7.x86_64.rpm

perf-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 7):

 

x86_64:

kernel-debug-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-229.1.2.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-3.10.0-229.1.2.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.1.2.el7.x86_64.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-2014-8159

https://access.redhat.com/security/cve/CVE-2015-1421

https://access.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2015 Red Hat, Inc.

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