Synopsis

Moderate: kernel-rt security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

Updated kernel-rt packages that fix one security issue, several bugs, and
add one enhancement are now available for Red Hat Enterprise MRG 2.5.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

Description

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

• A flaw was found in the way the Linux kernel's VFS subsystem handled file
  system locks. A local, unprivileged user could use this flaw to trigger a
  deadlock in the kernel, causing a denial of service on the system.
  (CVE-2014-8559, Moderate)
  

This update provides a build of the kernel-rt package for Red Hat
Enterprise MRG 2.5 that is layered on Red Hat Enterprise Linux 6, and fixes
the following issues:

• Unexpected completion is detected on Intel Ethernet x540
  
• Divide by zero error in intel_pstate_timer_func() [ inline s64
  div_s64_rem() ]
  
• NFS Recover from stateid-type error on SETATTR
  
• pNFS RHEL 7.1 Data Server connection remains after umount due to lseg
  refcount leak
  
• Race during NFS v4.0 recovery and standard IO.
  
• Fix ip6t_SYNPROXY for namespaces and connection delay
  
• synproxy window size and sequence number behaviour causes long connection
  delay
  
• Crash in kmem_cache_alloc() during disk stress testing (using ipr)
  
• xfs: sync/backport to upstream v4.1
  
• iscsi_session recovery_tmo revert back to default when a path becomes
  active
  
• read from MD raid1 can fail if read from resync target fails
  
• backport scsi-mq
  
• unable to handle kernel paging request at 0000000000237037 [zswap]
  

(BZ#1267373)

All kernel-rt users are advised to upgrade to these updated packages, which
correct these issues and add this enhancement. 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

• MRG Realtime 2 x86_64

Fixes

• BZ - 1159313 - CVE-2014-8559 kernel: fs: deadlock due to incorrect usage of rename_lock
• BZ - 1267373 - update the MRG 2.5.x 3.10 kernel-rt sources

CVEs

• CVE-2014-8559

References

• https://access.redhat.com/security/updates/classification/#moderate

MRG Realtime 2

SRPM
kernel-rt-3.10.0-229.rt56.162.el6rt.src.rpm	SHA-256: 592c4c1a6063e28e75b772f1480195b33e7c90a7cd8fcbb12af891046b7b5bbe
x86_64
kernel-rt-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 0191d88f8897f898f9fbee36460408032ceb70d19cc10ca6725f730f088c9747
kernel-rt-debug-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 878ea903aae34963000ab7c5e5dbeee5b6e457eab3bcd6a7f19c8ce2d90e623e
kernel-rt-debug-debuginfo-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 074305966a93541cf7d28f20cad97b508e47258dad29cc2d974e8ebc3b27c90a
kernel-rt-debug-devel-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 88655182a0ea5580c12a31b39c0a157cccf77eaff92fd64fab5ff820928191ac
kernel-rt-debuginfo-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 672b9faa969dcbb2308252b29bf31e24a3d857f123087901aaca5008e3114070
kernel-rt-debuginfo-common-x86_64-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: b5e7867dcdb9b27a163acfcd67023ece3143364444877221b88abd40c3ab042d
kernel-rt-devel-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: ea195056b9ea023edc3a7674b781bea6a1a3dbc5da14b34e080299f96b7b59e6
kernel-rt-doc-3.10.0-229.rt56.162.el6rt.noarch.rpm	SHA-256: 9339e8575dfda34ef631d661127c726b3e86555198d8240c44d94940cccafda8
kernel-rt-firmware-3.10.0-229.rt56.162.el6rt.noarch.rpm	SHA-256: d4cfc579f42f4ef5b7cad9d7c822ee49f5b06f9d575789bd665307a585104f06
kernel-rt-trace-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 3c14c0d6601761ee5e57b05489ba443b8aac784e5ccdff8b98cc45d976cca048
kernel-rt-trace-debuginfo-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 7fa180abf725f28fbace70b37882b57a24cb5a1a775202802519188290928bff
kernel-rt-trace-devel-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: c6cb82b3a2c9690b47c78780e1196aaa10e1dc60849410e2e81bc9fbec7c683a
kernel-rt-vanilla-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: a061aa9197269e9d0b914dbafade3cd6293509b0d01a948db4eabd1480fd33c5
kernel-rt-vanilla-debuginfo-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: 6fe595d257d41262218c2054b0d35f8c4fea4b9f5dba64b6ac2bc00a52b24268
kernel-rt-vanilla-devel-3.10.0-229.rt56.162.el6rt.x86_64.rpm	SHA-256: c95a773b7a9f9709f7ea51b64978cf203419df72770f9ab982b2c5cddaee247c