-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:3447-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3447 Issue date: 2021-09-07 CVE Names: CVE-2021-37576 CVE-2021-38201 ==================================================================== 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: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576) * kernel: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c (CVE-2021-38201) 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): * Update Broadcom Emulex lpfc driver for RHEL8.5 with bug fixes (BZ#1948608) * cyclictest shows >50us latency when guest enters idle (RT guest with 18 RT vCPUs) (BZ#1981336) * xfrm: backports from upstream (BZ#1981840) * A task is stuck waiting for the completion of the vmci_resouce releasing upon the balloon reset. (BZ#1982042) * [mlx5] backport driver bits of net: zero-initialize tc skb extension on allocation (BZ#1982220) * Kernel cannot kill a process doing compaction for hugepage allocation (BZ#1984085) * RHEL8.4 Nightly[0108] - [P10] [Regression] Kdump failed on RHEL8.4 on SAN disk via flavafish adapter (qla2xxx/HPT/Radix) (BZ#1986156) * [RHEL8.5] scheduler updates and fixes (BZ#1987296) * RHEL 8.3 using FCOE via a FastLinQ QL45000 card will not manually scan in LUN from Target_id's over 8 (BZ#1989097) * fixes for oopses in security mitigation runtime code patching (BZ#1989174) * act mirred doesn't scrub packets when sending them to ingress (BZ#1992226) * HPE: Cannot install 8.4 using the DVD presented to the iLO (BZ#1993894) * NFS client hangs on share listing when server side readdir verifiers are implemented (BZ#1993895) * SNO: The load is extremely high (~870) when pao is added and a profile is applied. (BZ#1994879) * timeout value of conntrack entry with TCP ESTABLISHED status is too short (BZ#1995554) * Increase the default value for flowtable offload timeouts (BZ#1995555) * ice/iavf driver stop responding (BZ#1997534) * [FJ8.4 Bug]: [REG] Some files in /proc/sys/user show wrong data (BZ#1998002) 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/): 1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption 1992731 - CVE-2021-38201 kernel: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c 6. Package List: Red Hat Enterprise Linux BaseOS (v. 8): Source: kernel-4.18.0-305.17.1.el8_4.src.rpm aarch64: bpftool-4.18.0-305.17.1.el8_4.aarch64.rpm bpftool-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-core-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-cross-headers-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-core-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-devel-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-modules-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-modules-extra-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-devel-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-headers-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-modules-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-modules-extra-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-tools-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-tools-libs-4.18.0-305.17.1.el8_4.aarch64.rpm perf-4.18.0-305.17.1.el8_4.aarch64.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm python3-perf-4.18.0-305.17.1.el8_4.aarch64.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm noarch: kernel-abi-stablelists-4.18.0-305.17.1.el8_4.noarch.rpm kernel-doc-4.18.0-305.17.1.el8_4.noarch.rpm ppc64le: bpftool-4.18.0-305.17.1.el8_4.ppc64le.rpm bpftool-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-core-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-cross-headers-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-core-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-devel-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-modules-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-modules-extra-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-devel-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-headers-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-modules-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-modules-extra-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-tools-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-tools-libs-4.18.0-305.17.1.el8_4.ppc64le.rpm perf-4.18.0-305.17.1.el8_4.ppc64le.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm python3-perf-4.18.0-305.17.1.el8_4.ppc64le.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm s390x: bpftool-4.18.0-305.17.1.el8_4.s390x.rpm bpftool-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm kernel-4.18.0-305.17.1.el8_4.s390x.rpm kernel-core-4.18.0-305.17.1.el8_4.s390x.rpm kernel-cross-headers-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debug-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debug-core-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debug-devel-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debug-modules-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debug-modules-extra-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-305.17.1.el8_4.s390x.rpm kernel-devel-4.18.0-305.17.1.el8_4.s390x.rpm kernel-headers-4.18.0-305.17.1.el8_4.s390x.rpm kernel-modules-4.18.0-305.17.1.el8_4.s390x.rpm kernel-modules-extra-4.18.0-305.17.1.el8_4.s390x.rpm kernel-tools-4.18.0-305.17.1.el8_4.s390x.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm kernel-zfcpdump-4.18.0-305.17.1.el8_4.s390x.rpm kernel-zfcpdump-core-4.18.0-305.17.1.el8_4.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm kernel-zfcpdump-devel-4.18.0-305.17.1.el8_4.s390x.rpm kernel-zfcpdump-modules-4.18.0-305.17.1.el8_4.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-305.17.1.el8_4.s390x.rpm perf-4.18.0-305.17.1.el8_4.s390x.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm python3-perf-4.18.0-305.17.1.el8_4.s390x.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.s390x.rpm x86_64: bpftool-4.18.0-305.17.1.el8_4.x86_64.rpm bpftool-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-core-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-cross-headers-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-core-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-devel-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-modules-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-modules-extra-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-devel-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-headers-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-modules-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-modules-extra-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-tools-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-tools-libs-4.18.0-305.17.1.el8_4.x86_64.rpm perf-4.18.0-305.17.1.el8_4.x86_64.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm python3-perf-4.18.0-305.17.1.el8_4.x86_64.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm Red Hat CodeReady Linux Builder (v. 8): aarch64: bpftool-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm kernel-tools-libs-devel-4.18.0-305.17.1.el8_4.aarch64.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.aarch64.rpm ppc64le: bpftool-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm kernel-tools-libs-devel-4.18.0-305.17.1.el8_4.ppc64le.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.ppc64le.rpm x86_64: bpftool-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debug-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-tools-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm kernel-tools-libs-devel-4.18.0-305.17.1.el8_4.x86_64.rpm perf-debuginfo-4.18.0-305.17.1.el8_4.x86_64.rpm python3-perf-debuginfo-4.18.0-305.17.1.el8_4.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-2021-37576 https://access.redhat.com/security/cve/CVE-2021-38201 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYTeo39zjgjWX9erEAQiQJg//WC8Lo366QM07Hf6JqLFH8hpTIEz14AMN eKAlX+lBh6nP7HM/Q8YHAqgRk4vHlasireWUa4Yjjq3UQbCd5naMyiZ23YrwcL9t gMPSeaKx5MGT3N0+PAXKNvWrllAtlCyx8rY4mV4P7cR3FhtsACQ/Ig2BNLY9L2NY QNA4D5+vUJASDuTuEvQrsTMlc/h2GeXhhjMco+JE1G+NhCca9srRSitc01t1VXIk jEP5ET1JfL/cSSvz7i1VJ0tEFX+5wV0qY/t1FlfyATZ8NuxhNN/Zad9aiw7+ouay erTTBAl8OpfT5xwqB6yXl/SbYRiVVy52sulaak/uijcCAd3JSX4Fdd+gQbDsh5H/ G6uKxkVaycOzkhrNZIJQB+9xxU9PzqcmD5sK06ODt/3qUpvdnRgKsGlGei2FtpL7 GQ440Y/tc772QpLilvjkdO/rJ3WJ7vjXWaDglnrR+YLf4S5KJTR5tON1bLd2ImxY WQ4NSzJBr/kDT9ARP2QvYUyxHRt/7l+qjQZSGWWkMdmeYP94bX+oelnxsVz0UJJ1 E0GykqwcF22XfFTYw4cYGH9xmYZNn8L0ejrc/VYDDPgO9GScKUgc5ncpmKEhzOWt niZ5cZ0UmKpCL6lATnGW2eOz9+za5Ep371guxerxxeDUkbFpx5tjjzAKBK+I2xGC TjjKLsNVflc=ckyS -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce