A kernel security and bug fix update has been released for Red Hat Enterprise Linux 7.
RHSA-2021:2314-01: Important: kernel security and bug fix update
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2021:2314-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2314
Issue date: 2021-06-08
CVE Names: CVE-2020-8648 CVE-2020-12362 CVE-2020-12363
CVE-2020-12364 CVE-2020-27170 CVE-2021-3347
=====================================================================
1. Summary:
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 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 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
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)
* kernel: Use after free via PI futex state (CVE-2021-3347)
* kernel: use-after-free in n_tty_receive_buf_common function in
drivers/tty/n_tty.c (CVE-2020-8648)
* kernel: Improper input validation in some Intel(R) Graphics Drivers
(CVE-2020-12363)
* kernel: Null pointer dereference in some Intel(R) Graphics Drivers
(CVE-2020-12364)
* kernel: Speculation on pointer arithmetic against bpf_context pointer
(CVE-2020-27170)
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):
* kernel crash when call the timer function
(sctp_generate_proto_unreach_event) of sctp module (BZ#1707184)
* SCSI error handling process on HP P440ar controller gets stuck
indefinitely in device reset operation (BZ#1830268)
* netfilter: reproducible deadlock on nft_log module autoload (BZ#1858329)
* netfilter: NULL pointer dereference in nf_tables_set_lookup()
(BZ#1873171)
* [DELL EMC 7.9 Bug]: No acpi_pad threads on top command for "power cap
policy equal to 0 watts" (BZ#1883174)
* A race between i40e_ndo_set_vf_mac() and i40e_vsi_clear() in the i40e
driver causes a use after free condition of the kmalloc-4096 slab cache.
(BZ#1886003)
* netxen driver performs poorly with RT kernel (BZ#1894274)
* gendisk->disk_part_tbl->last_lookup retains pointer after partition
deletion (BZ#1898596)
* Kernel experiences panic in update_group_power() due to division error
even with Bug 1701115 fix (BZ#1910763)
* RHEL7.9 - zfcp: fix handling of FCP_RESID_OVER bit in fcp ingress path
(BZ#1917839)
* RHEL7.9 - mm/THP: do not access vma->vm_mm after calling handle_userfault
(BZ#1917840)
* raid: wrong raid io account (BZ#1927106)
* qla2x00_status_cont_entry() missing upstream patch that prevents
unnecessary ABRT/warnings (BZ#1933784)
* RHEL 7.9.z - System hang caused by workqueue stall in qla2xxx driver
(BZ#1937945)
* selinux: setsebool can trigger a deadlock (BZ#1939091)
* [Hyper-V][RHEL-7] Cannot boot kernel 3.10.0-1160.21.1.el7.x86_64 on
Hyper-V (BZ#1941841)
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/):
1802559 - CVE-2020-8648 kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c
1922249 - CVE-2021-3347 kernel: Use after free via PI futex state
1930246 - CVE-2020-12362 kernel: Integer overflow in Intel(R) Graphics Drivers
1930249 - CVE-2020-12363 kernel: Improper input validation in some Intel(R) Graphics Drivers
1930251 - CVE-2020-12364 kernel: Null pointer dereference in some Intel(R) Graphics Drivers
1940627 - CVE-2020-27170 kernel: Speculation on pointer arithmetic against bpf_context pointer
1941841 - [Hyper-V][RHEL-7] Cannot boot kernel 3.10.0-1160.21.1.el7.x86_64 on Hyper-V
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-1160.31.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1160.31.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.31.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1160.31.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.31.1.el7.x86_64.rpm
perf-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-1160.31.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1160.31.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.31.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1160.31.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.31.1.el7.x86_64.rpm
perf-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-1160.31.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1160.31.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.31.1.el7.noarch.rpm
ppc64:
bpftool-3.10.0-1160.31.1.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debug-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-devel-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-headers-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-tools-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1160.31.1.el7.ppc64.rpm
perf-3.10.0-1160.31.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
python-perf-3.10.0-1160.31.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
ppc64le:
bpftool-3.10.0-1160.31.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1160.31.1.el7.ppc64le.rpm
perf-3.10.0-1160.31.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
python-perf-3.10.0-1160.31.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
s390x:
bpftool-3.10.0-1160.31.1.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.s390x.rpm
kernel-3.10.0-1160.31.1.el7.s390x.rpm
kernel-debug-3.10.0-1160.31.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1160.31.1.el7.s390x.rpm
kernel-devel-3.10.0-1160.31.1.el7.s390x.rpm
kernel-headers-3.10.0-1160.31.1.el7.s390x.rpm
kernel-kdump-3.10.0-1160.31.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1160.31.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1160.31.1.el7.s390x.rpm
perf-3.10.0-1160.31.1.el7.s390x.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.s390x.rpm
python-perf-3.10.0-1160.31.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.s390x.rpm
x86_64:
bpftool-3.10.0-1160.31.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.31.1.el7.x86_64.rpm
perf-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
bpftool-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1160.31.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.ppc64.rpm
ppc64le:
bpftool-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1160.31.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.ppc64le.rpm
x86_64:
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-1160.31.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1160.31.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.31.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1160.31.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.31.1.el7.x86_64.rpm
perf-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
bpftool-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.31.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.31.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.31.1.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/
7. References:
https://access.redhat.com/security/cve/CVE-2020-8648
https://access.redhat.com/security/cve/CVE-2020-12362
https://access.redhat.com/security/cve/CVE-2020-12363
https://access.redhat.com/security/cve/CVE-2020-12364
https://access.redhat.com/security/cve/CVE-2020-27170
https://access.redhat.com/security/cve/CVE-2021-3347
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 2021 Red Hat, Inc.
