RedHat: RHSA-2016-1100:01 Important: kernel security, bug fix,
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Two flaws were found in the way the Linux kernel's networking
implementation handled UDP packets with incorrect checksum values. A remote
attacker could potentially use these flaws to trigger an infinite loop in
the kernel, resulting in a denial of service on the system, or cause a
denial of service in applications using the edge triggered epoll
functionality. (CVE-2015-5364, CVE-2015-5366, Important)
Bug Fix(es):
* In anon_vma data structure, the degree counts number of child anon_vmas
and of VMAs that point to this anon_vma. In the unlink_anon_vma() function,
when its list is empty, anon_vma is going to be freed whether the external
refcount is zero or not, so the parent's degree should be decremented.
However, failure to decrement the degree triggered a BUG_ON() signal in
unlink_anon_vma(). The provided patch fixes this bug, and the degree is now
decremented as expected. (BZ#1326027)
Enhancement(s):
* The ixgbe NIC driver has been upgraded to upstream version 4.2.1, which
provides a number of bug fixes and enhancements over the previous version.
Notably:
NULL pointer crashes related to VLAN support have been fixed
Two more devices from the Intel X550 Ethernet controller family are now
supported: IDs 15AC and 15AD
Several PHY-related problems have been addressed: link disruptions and link
flapping
Added PHY-related support for Intel X550
System performance has been improved
(BZ#1315702)
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2015-5364 https://access.redhat.com/security/cve/CVE-2015-5366 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux HPC Node EUS (v. 6.6):
Source:
kernel-2.6.32-504.49.1.el6.src.rpm
noarch:
kernel-abi-whitelists-2.6.32-504.49.1.el6.noarch.rpm
kernel-doc-2.6.32-504.49.1.el6.noarch.rpm
kernel-firmware-2.6.32-504.49.1.el6.noarch.rpm
x86_64:
kernel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
kernel-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-headers-2.6.32-504.49.1.el6.x86_64.rpm
perf-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6):
x86_64:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.6):
Source:
kernel-2.6.32-504.49.1.el6.src.rpm
i386:
kernel-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
kernel-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-headers-2.6.32-504.49.1.el6.i686.rpm
perf-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
noarch:
kernel-abi-whitelists-2.6.32-504.49.1.el6.noarch.rpm
kernel-doc-2.6.32-504.49.1.el6.noarch.rpm
kernel-firmware-2.6.32-504.49.1.el6.noarch.rpm
ppc64:
kernel-2.6.32-504.49.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debug-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-504.49.1.el6.ppc64.rpm
kernel-devel-2.6.32-504.49.1.el6.ppc64.rpm
kernel-headers-2.6.32-504.49.1.el6.ppc64.rpm
perf-2.6.32-504.49.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
s390x:
kernel-2.6.32-504.49.1.el6.s390x.rpm
kernel-debug-2.6.32-504.49.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-504.49.1.el6.s390x.rpm
kernel-devel-2.6.32-504.49.1.el6.s390x.rpm
kernel-headers-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-504.49.1.el6.s390x.rpm
perf-2.6.32-504.49.1.el6.s390x.rpm
perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
x86_64:
kernel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.i686.rpm
kernel-debug-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
kernel-devel-2.6.32-504.49.1.el6.x86_64.rpm
kernel-headers-2.6.32-504.49.1.el6.x86_64.rpm
perf-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.6):
i386:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-504.49.1.el6.i686.rpm
perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
python-perf-2.6.32-504.49.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.i686.rpm
ppc64:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-504.49.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
python-perf-2.6.32-504.49.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.ppc64.rpm
s390x:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-504.49.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
python-perf-2.6.32-504.49.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.s390x.rpm
x86_64:
kernel-debug-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-504.49.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-2.6.32-504.49.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-504.49.1.el6.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/
Topic
An update for kernel is now available for Red Hat Enterprise Linux 6.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux HPC Node EUS (v. 6.6) - noarch, x86_64
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, ppc64, s390x, x86_64
Bugs Fixed
1239029 - CVE-2015-5366 CVE-2015-5364 kernel: net: incorrect processing of checksums in UDP implementation