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    RedHat: RHSA-2020-3222:01 Important: kernel security and bug fix update

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    An update for kernel is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: kernel security and bug fix update
    Advisory ID:       RHSA-2020:3222-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3222
    Issue date:        2020-07-29
    CVE Names:         CVE-2019-19807 CVE-2019-20908 CVE-2020-10757 
                       CVE-2020-10766 CVE-2020-10767 CVE-2020-10768 
                       CVE-2020-12653 CVE-2020-12654 CVE-2020-12888 
                       CVE-2020-15780 
    =====================================================================
    
    1. Summary:
    
    An update for kernel is now available for Red Hat Enterprise Linux 8.1
    Extended Update Support.
    
    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 EUS (v. 8.1) - aarch64, ppc64le, x86_64
    Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - 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: use-after-free in sound/core/timer.c (CVE-2019-19807)
    
    * kernel: kernel: DAX hugepages not considered during mremap
    (CVE-2020-10757)
    
    * kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug
    allows an attacker to turn off the SSBD protection. (CVE-2020-10766)
    
    * kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP
    is unavailable or enhanced IBRS is available. (CVE-2020-10767)
    
    * kernel: Indirect branch speculation can be enabled after it was
    force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (CVE-2020-10768)
    
    * kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in
    drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
    
    * kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function
    in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
    
    * Kernel: vfio: access to disabled MMIO space of some devices may lead to
    DoS scenario (CVE-2020-12888)
    
    * kernel: lockdown: bypass through ACPI write via efivar_ssdt
    (CVE-2019-20908)
    
    * kernel: lockdown: bypass through ACPI write via acpi_configfs
    (CVE-2020-15780)
    
    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):
    
    * [DELL EMC 8.1 BUG] : Observing Multiple "hw csum failure" while
    installing RHEL 8.1 on iSCSI LUN (BZ#1821374)
    
    * kernel: provide infrastructure to support dual-signing of the kernel
    (foundation to help address CVE-2020-10713) (BZ#1837432)
    
    * deadlock between modprobe and netns exit (BZ#1845163)
    
    * exit_boot failed when install RHEL8.1 (BZ#1846179)
    
    * http request is taking more time for endpoint running on different host
    via nodeport service (BZ#1847127)
    
    * RHEL8.1 - s390/cio: fix virtio-ccw DMA without PV (BZ#1847534)
    
    * RHEL8.1 - zEDC problems on z14 (genwqe/pci) (BZ#1847939)
    
    * NVMe/FC with DM-MP unexpected I/O failure during "transitioning"
    [EIOP-8345] (BZ#1854678)
    
    * Backport conntrack race condition fixes (BZ#1854953)
    
    * nf_conntrack module unload fail and refcount become to negative
    (BZ#1854954)
    
    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/):
    
    1786078 - CVE-2019-19807 kernel: use-after-free in sound/core/timer.c
    1831868 - CVE-2020-12653 kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c
    1832530 - CVE-2020-12654 kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c
    1836244 - CVE-2020-12888 Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario
    1842525 - CVE-2020-10757 kernel: kernel: DAX hugepages not considered during mremap
    1845840 - CVE-2020-10766 kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection.
    1845867 - CVE-2020-10767 kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.
    1845868 - CVE-2020-10768 kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.
    1852942 - CVE-2019-20908 kernel: lockdown: bypass through ACPI write via efivar_ssdt
    1852962 - CVE-2020-15780 kernel: lockdown: bypass through ACPI write via acpi_configfs
    
    6. Package List:
    
    Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
    
    Source:
    kernel-4.18.0-147.24.2.el8_1.src.rpm
    
    aarch64:
    bpftool-4.18.0-147.24.2.el8_1.aarch64.rpm
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-core-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-cross-headers-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-core-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-devel-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-modules-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-modules-extra-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debuginfo-common-aarch64-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-devel-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-headers-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-modules-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-modules-extra-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-tools-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-tools-libs-4.18.0-147.24.2.el8_1.aarch64.rpm
    perf-4.18.0-147.24.2.el8_1.aarch64.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    python3-perf-4.18.0-147.24.2.el8_1.aarch64.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    
    noarch:
    kernel-abi-whitelists-4.18.0-147.24.2.el8_1.noarch.rpm
    kernel-doc-4.18.0-147.24.2.el8_1.noarch.rpm
    
    ppc64le:
    bpftool-4.18.0-147.24.2.el8_1.ppc64le.rpm
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-core-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-cross-headers-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-core-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-devel-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-modules-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-modules-extra-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debuginfo-common-ppc64le-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-devel-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-headers-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-modules-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-modules-extra-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-tools-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-tools-libs-4.18.0-147.24.2.el8_1.ppc64le.rpm
    perf-4.18.0-147.24.2.el8_1.ppc64le.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    python3-perf-4.18.0-147.24.2.el8_1.ppc64le.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    
    s390x:
    bpftool-4.18.0-147.24.2.el8_1.s390x.rpm
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-core-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-cross-headers-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debug-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debug-core-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debug-devel-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debug-modules-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debug-modules-extra-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-debuginfo-common-s390x-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-devel-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-headers-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-modules-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-modules-extra-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-tools-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-zfcpdump-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-zfcpdump-core-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-zfcpdump-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-zfcpdump-devel-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-zfcpdump-modules-4.18.0-147.24.2.el8_1.s390x.rpm
    kernel-zfcpdump-modules-extra-4.18.0-147.24.2.el8_1.s390x.rpm
    perf-4.18.0-147.24.2.el8_1.s390x.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    python3-perf-4.18.0-147.24.2.el8_1.s390x.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.s390x.rpm
    
    x86_64:
    bpftool-4.18.0-147.24.2.el8_1.x86_64.rpm
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-core-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-cross-headers-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-core-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-devel-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-modules-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-modules-extra-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debuginfo-common-x86_64-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-devel-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-headers-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-modules-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-modules-extra-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-tools-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-tools-libs-4.18.0-147.24.2.el8_1.x86_64.rpm
    perf-4.18.0-147.24.2.el8_1.x86_64.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    python3-perf-4.18.0-147.24.2.el8_1.x86_64.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    
    Red Hat CodeReady Linux Builder EUS (v. 8.1):
    
    aarch64:
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-debuginfo-common-aarch64-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    kernel-tools-libs-devel-4.18.0-147.24.2.el8_1.aarch64.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.aarch64.rpm
    
    ppc64le:
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-debuginfo-common-ppc64le-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    kernel-tools-libs-devel-4.18.0-147.24.2.el8_1.ppc64le.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.ppc64le.rpm
    
    x86_64:
    bpftool-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debug-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-debuginfo-common-x86_64-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-tools-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    kernel-tools-libs-devel-4.18.0-147.24.2.el8_1.x86_64.rpm
    perf-debuginfo-4.18.0-147.24.2.el8_1.x86_64.rpm
    python3-perf-debuginfo-4.18.0-147.24.2.el8_1.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-2019-19807
    https://access.redhat.com/security/cve/CVE-2019-20908
    https://access.redhat.com/security/cve/CVE-2020-10757
    https://access.redhat.com/security/cve/CVE-2020-10766
    https://access.redhat.com/security/cve/CVE-2020-10767
    https://access.redhat.com/security/cve/CVE-2020-10768
    https://access.redhat.com/security/cve/CVE-2020-12653
    https://access.redhat.com/security/cve/CVE-2020-12654
    https://access.redhat.com/security/cve/CVE-2020-12888
    https://access.redhat.com/security/cve/CVE-2020-15780
    https://access.redhat.com/security/updates/classification/#important
    https://access.redhat.com/security/vulnerabilities/grub2bootloader
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2020 Red Hat, Inc.
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