-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security and bug fix update Advisory ID: RHSA-2021:3904-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3904 Issue date: 2021-10-19 CVE Names: CVE-2021-3653 CVE-2021-3656 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. 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. 8.2) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - 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: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) * kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) (CVE-2021-3656) 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): * RHEL8.2 - s390/vtime: fix increased steal time accounting (BZ#1988387) * Backport 22e4663e91 ("mm/slub: fix panic in slab_alloc_node()") (BZ#1996078) * Kernel panic at n_tty_set_termios+0x30 (BZ#1998000) 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/): 1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support) 1983988 - CVE-2021-3656 kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.2): Source: kernel-4.18.0-193.68.1.el8_2.src.rpm aarch64: bpftool-4.18.0-193.68.1.el8_2.aarch64.rpm bpftool-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-core-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-cross-headers-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-core-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-devel-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-modules-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-modules-extra-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-devel-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-headers-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-modules-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-modules-extra-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-tools-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-tools-libs-4.18.0-193.68.1.el8_2.aarch64.rpm perf-4.18.0-193.68.1.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm python3-perf-4.18.0-193.68.1.el8_2.aarch64.rpm python3-perf-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm noarch: kernel-abi-whitelists-4.18.0-193.68.1.el8_2.noarch.rpm kernel-doc-4.18.0-193.68.1.el8_2.noarch.rpm ppc64le: bpftool-4.18.0-193.68.1.el8_2.ppc64le.rpm bpftool-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-core-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-cross-headers-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-core-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-devel-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-modules-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-modules-extra-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-devel-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-headers-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-modules-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-modules-extra-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-tools-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-tools-libs-4.18.0-193.68.1.el8_2.ppc64le.rpm perf-4.18.0-193.68.1.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm python3-perf-4.18.0-193.68.1.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm s390x: bpftool-4.18.0-193.68.1.el8_2.s390x.rpm bpftool-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm kernel-4.18.0-193.68.1.el8_2.s390x.rpm kernel-core-4.18.0-193.68.1.el8_2.s390x.rpm kernel-cross-headers-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debug-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debug-core-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debug-devel-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debug-modules-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debug-modules-extra-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-193.68.1.el8_2.s390x.rpm kernel-devel-4.18.0-193.68.1.el8_2.s390x.rpm kernel-headers-4.18.0-193.68.1.el8_2.s390x.rpm kernel-modules-4.18.0-193.68.1.el8_2.s390x.rpm kernel-modules-extra-4.18.0-193.68.1.el8_2.s390x.rpm kernel-tools-4.18.0-193.68.1.el8_2.s390x.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm kernel-zfcpdump-4.18.0-193.68.1.el8_2.s390x.rpm kernel-zfcpdump-core-4.18.0-193.68.1.el8_2.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm kernel-zfcpdump-devel-4.18.0-193.68.1.el8_2.s390x.rpm kernel-zfcpdump-modules-4.18.0-193.68.1.el8_2.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-193.68.1.el8_2.s390x.rpm perf-4.18.0-193.68.1.el8_2.s390x.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm python3-perf-4.18.0-193.68.1.el8_2.s390x.rpm python3-perf-debuginfo-4.18.0-193.68.1.el8_2.s390x.rpm x86_64: bpftool-4.18.0-193.68.1.el8_2.x86_64.rpm bpftool-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-core-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-cross-headers-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-core-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-devel-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-modules-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-modules-extra-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-devel-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-headers-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-modules-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-modules-extra-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-tools-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-tools-libs-4.18.0-193.68.1.el8_2.x86_64.rpm perf-4.18.0-193.68.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm python3-perf-4.18.0-193.68.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm Red Hat CodeReady Linux Builder EUS (v. 8.2): aarch64: bpftool-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm kernel-tools-libs-devel-4.18.0-193.68.1.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm python3-perf-debuginfo-4.18.0-193.68.1.el8_2.aarch64.rpm ppc64le: bpftool-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm kernel-tools-libs-devel-4.18.0-193.68.1.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.68.1.el8_2.ppc64le.rpm x86_64: bpftool-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm kernel-tools-libs-devel-4.18.0-193.68.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.68.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.68.1.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-2021-3653 https://access.redhat.com/security/cve/CVE-2021-3656 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYW5uD9zjgjWX9erEAQgN9RAAnUv34DYe/WbDUPq+dwmQ+Z00o5yZ8PSi EKDoptQj2B7aOrTvA/EssgE4cCD5tJwMhJD9dzQ/JhK0eH/yU31K9p64guRgOzdS 7XYETJB/40lWRHm9U/9Dv5SXKwWLBytOAfCWF4CGNwm/HkIAaAJcxcYPGr5+mvOe b1q2zJidxHMcLjLT5egLSKzmELYR5cqvzyfUykH/pnRg7ChHIwM/Xrd9qp8j+UeH VOsGISoJ9PUi7Na/eO7p5mcnQWIeFfkVYZmg88oFeg2JFNzrR2PXKFmmdqy/9pfx Q9pNGaRzgQ5IZBYm0zn3ayaAIL4thKQswvxNV1j8dPz9ORCUMlS7kWdHdqR+7MKJ MsHNA7rJmqsMM8+ARw0D19UJEgBuIVffCw4xTKYMqk9kYAPpGsamohmCJ43MkTVr abcRdwzQHb0FTT38q/wLOPFQ0ghJrrGBxrgUHdOmOxeP972QRxDnNCBHWBrqrOVa H7Gppx30PDPvkV7g3S8Rk6L/8ib6Wlx72M7P1ah0GceN4LaQrMRqVR5oR3BsgVPe h2K3mRPHK+pdkgmKBazpzW8FIBnWpXNQgwdLYLeWD0Dr+OECjElpvy16soG7VZ0w prO67IEKhiqjgtwoQzagj/2XSQz5uTVUcBcWdUrGshd/oS76LYTH8LvxzQjcdhaI oZAtjXWgPUA·F3 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce