A kernel security and bug fix update has been released for Red Hat Enterprise Linux 8.
RHSA-2020:4286-01: Important: kernel security and bug fix update
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2020:4286-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4286
Issue date: 2020-10-20
CVE Names: CVE-2020-12351 CVE-2020-12352 CVE-2020-14331
CVE-2020-14385 CVE-2020-14386
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Important. 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 CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: net: bluetooth: type confusion while processing AMP packets
(CVE-2020-12351)
* kernel: net: bluetooth: information leak when processing certain AMP
packets (CVE-2020-12352)
* kernel: metadata validator in XFS may cause an inode with a valid,
user-creatable extended attribute to be flagged as corrupt (CVE-2020-14385)
* kernel: memory corruption in net/packet/af_packet.c leads to elevation of
privilege (CVE-2020-14386)
* kernel: kernel: buffer over write in vgacon_scroll (CVE-2020-14331)
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):
* [mlx5] stale ethtool steering rules remain after moving back to legacy
mode (BZ#1857777)
* 50% cpu in masked_flow_update with pop to pod TCP_RR (BZ#1859216)
* take into account GSO and fragmented packets in execute_check_pkt_len
action (BZ#1860169)
* RHEL8.1 - scsi: ibmvfc: Avoid loss of all paths during SVC node reboot
(BZ#1866371)
* RHEL8.3 Pre-Beta - smc: SMC connections hang with later-level
implementations (BZ#1866390)
* Incorrect pinning of IRQ threads on isolated CPUs by drivers that use
cpumask_local_spread() (BZ#1867174)
* [RHEL8] Fixes for DEADLINE scheduler class (BZ#1867612)
* RHEL8.1 - s390/pci: Fix unexpected write combine on resource (BZ#1869276)
* dm multipath: fix spurious failures during IO completion [EIOP-8345]
(BZ#1869386)
* IO on virtio-scsi hangs when running cpu hotplug test (BZ#1869779)
* store_rps_map doesn't accept an empty bitmask, which is required for
disabling RPS on a queue (BZ#1870181)
* Memory registration cache data corruption possible, fix requires
backporting (BZ#1872424)
* fix another case of wait list corruption for PSM/sdma (BZ#1872766)
* [RHEL-8] Segmentation fault (core dumped) when fi_bw -e msg -v -T 1 -p
"verbs" (BZ#1872771)
* fix mounting and inode number handling on s390x (BZ#1875787)
* failure to enter nohz_full mode for non SCHED_FIFO tasks (BZ#1877417)
* Secure boot key is not loaded with kernel-4.18.0-232.el8.x86_64 /
shim-x64-15-15 (BZ#1877528)
* [RHEL-8.3] Kdump failed to start when secure boot enabled:
kexec_file_load failed: Required key not available (BZ#1877530)
* [RHEL-8.3] Kdump/kexec kernel panicked on EFI boot: general protection
fault: 0000 [#1] SMP PTI (BZ#1879988)
* Sleeping or scheduling after sched_cpu_dying() led to "scheduling while
atomic" and BUG at kernel/cpu.c:907! (BZ#1880081)
* [conntrack] udp packet reverse NAT occasionally fail when race condition
request combination with the DNAT load balancing rules (BZ#1882095)
* [Regression] RHEL8.3 Beta - Do not initiate shutdown for
EPOW_SHUTDOWN_ON_UPS event (BZ#1882243)
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/):
1858679 - CVE-2020-14331 kernel: kernel: buffer over write in vgacon_scroll
1874800 - CVE-2020-14385 kernel: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt
1875699 - CVE-2020-14386 kernel: memory corruption in net/packet/af_packet.c leads to elevation of privilege
1886521 - CVE-2020-12351 kernel: net: bluetooth: type confusion while processing AMP packets
1886529 - CVE-2020-12352 kernel: net: bluetooth: information leak when processing certain AMP packets
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
kernel-4.18.0-193.28.1.el8_2.src.rpm
aarch64:
bpftool-4.18.0-193.28.1.el8_2.aarch64.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-core-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-devel-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-headers-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-modules-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-libs-4.18.0-193.28.1.el8_2.aarch64.rpm
perf-4.18.0-193.28.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
python3-perf-4.18.0-193.28.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
noarch:
kernel-abi-whitelists-4.18.0-193.28.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.28.1.el8_2.noarch.rpm
ppc64le:
bpftool-4.18.0-193.28.1.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.28.1.el8_2.ppc64le.rpm
perf-4.18.0-193.28.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.28.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
s390x:
bpftool-4.18.0-193.28.1.el8_2.s390x.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-core-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-devel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-headers-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-modules-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-tools-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-core-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-devel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-193.28.1.el8_2.s390x.rpm
perf-4.18.0-193.28.1.el8_2.s390x.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
python3-perf-4.18.0-193.28.1.el8_2.s390x.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
x86_64:
bpftool-4.18.0-193.28.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.28.1.el8_2.x86_64.rpm
perf-4.18.0-193.28.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.28.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
aarch64:
bpftool-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-libs-devel-4.18.0-193.28.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
ppc64le:
bpftool-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-193.28.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
x86_64:
bpftool-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-libs-devel-4.18.0-193.28.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.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-2020-12351
https://access.redhat.com/security/cve/CVE-2020-12352
https://access.redhat.com/security/cve/CVE-2020-14331
https://access.redhat.com/security/cve/CVE-2020-14385
https://access.redhat.com/security/cve/CVE-2020-14386
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/BleedingTooth
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
