RedHat: RHSA-2019-0818:01 Important: kernel security and bug fix update
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()
(CVE-2019-6974)
* Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the
preemption timer (CVE-2019-7221)
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):
* rbd: avoid corruption on partially completed bios [rhel-7.6.z]
(BZ#1672514)
* xfs_vm_writepages deadly embrace between kworker and user task.
[rhel-7.6.z] (BZ#1673281)
* Offload Connections always get vlan priority 0 [rhel-7.6.z] (BZ#1673821)
* [NOKIA] RHEL sends flood of Neighbour Solicitations under specific
conditions [rhel-7.6.z] (BZ#1677179)
* RHEL 7.6 - Host crash occurred on NVMe/IB system while running controller
reset [rhel-7.6.z] (BZ#1678214)
* [rhel7] raid0 md workqueue deadlock with stacked md devices [rhel-7.6.z]
(BZ#1678215)
* [PureStorage7.6]nvme disconnect following an unsuccessful Admin queue
creation causes kernel panic [rhel-7.6.z] (BZ#1678216)
* RFC: Regression with -fstack-check in 'backport upstream large stack
guard patch to RHEL6' patch [rhel-7.6.z] (BZ#1678221)
* [Hyper-V] [RHEL 7.6]hv_netvsc: Fix a network regression after ifdown/ifup
[rhel-7.6.z] (BZ#1679997)
* rtc_cmos: probe of 00:01 failed with error -16 [rhel-7.6.z] (BZ#1683078)
* ACPI WDAT watchdog update [rhel-7.6.z] (BZ#1683079)
* high ovs-vswitchd CPU usage when VRRP over VXLAN tunnel causing qrouter
fail-over [rhel-7.6.z] (BZ#1683093)
* Openshift node drops outgoing POD traffic due to NAT hashtable race in
__ip_conntrack_confirm() [rhel-7.6.z] (BZ#1686766)
* [Backport] [v3,2/2] net: igmp: Allow user-space configuration of igmp
unsolicited report interval [rhel-7.6.z] (BZ#1686771)
* [RHEL7.6]: Intermittently seen FIFO parity error on T6225-SO adapter
[rhel-7.6.z] (BZ#1687487)
* The number of unsolict report about IGMP is incorrect [rhel-7.6.z]
(BZ#1688225)
* RDT driver causing failure to boot on AMD Rome system with more than 255
CPUs [rhel-7.6.z] (BZ#1689120)
* mpt3sas_cm0: fault_state(0x2100)! [rhel-7.6.z] (BZ#1689379)
* rwsem in inconsistent state leading system to hung [rhel-7.6.z]
(BZ#1690323)
Users of kernel are advised to upgrade to these updated packages, which fix
these bugs.
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-2019-6974 https://access.redhat.com/security/cve/CVE-2019-7221 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-957.12.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.12.1.el7.noarch.rpm
kernel-doc-3.10.0-957.12.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-957.12.1.el7.x86_64.rpm
kernel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.12.1.el7.x86_64.rpm
perf-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-957.12.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.12.1.el7.noarch.rpm
kernel-doc-3.10.0-957.12.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-957.12.1.el7.x86_64.rpm
kernel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.12.1.el7.x86_64.rpm
perf-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-957.12.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.12.1.el7.noarch.rpm
kernel-doc-3.10.0-957.12.1.el7.noarch.rpm
ppc64:
kernel-3.10.0-957.12.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debug-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-957.12.1.el7.ppc64.rpm
kernel-devel-3.10.0-957.12.1.el7.ppc64.rpm
kernel-headers-3.10.0-957.12.1.el7.ppc64.rpm
kernel-tools-3.10.0-957.12.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-957.12.1.el7.ppc64.rpm
perf-3.10.0-957.12.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
python-perf-3.10.0-957.12.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debug-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-devel-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-headers-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-tools-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-957.12.1.el7.ppc64le.rpm
perf-3.10.0-957.12.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
python-perf-3.10.0-957.12.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
s390x:
kernel-3.10.0-957.12.1.el7.s390x.rpm
kernel-debug-3.10.0-957.12.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-957.12.1.el7.s390x.rpm
kernel-devel-3.10.0-957.12.1.el7.s390x.rpm
kernel-headers-3.10.0-957.12.1.el7.s390x.rpm
kernel-kdump-3.10.0-957.12.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-957.12.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-957.12.1.el7.s390x.rpm
perf-3.10.0-957.12.1.el7.s390x.rpm
perf-debuginfo-3.10.0-957.12.1.el7.s390x.rpm
python-perf-3.10.0-957.12.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.s390x.rpm
x86_64:
bpftool-3.10.0-957.12.1.el7.x86_64.rpm
kernel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.12.1.el7.x86_64.rpm
perf-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
kernel-debug-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-957.12.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-957.12.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-957.12.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-957.12.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.12.1.el7.noarch.rpm
kernel-doc-3.10.0-957.12.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-957.12.1.el7.x86_64.rpm
kernel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.12.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.12.1.el7.x86_64.rpm
perf-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.12.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.12.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.12.1.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/
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.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 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, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Bugs Fixed
1671904 - CVE-2019-7221 Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer
1671913 - CVE-2019-6974 Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()