-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2022:1198-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:1198 Issue date: 2022-04-05 CVE Names: CVE-2021-4028 CVE-2021-4083 ==================================================================== 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: use-after-free in RDMA listen() (CVE-2021-4028) * kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083) 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): * Adding new kernel entry in grub configuration file only after generation of new initramfs (BZ#1893756) * Cannot mount DFS shares on RHEL7 (BZ#1937304) * RHEL7.9 - zcrypt DD: Toleration for new IBM Z Crypto Hardware (BZ#1997156) * kernel panic at skb_free_datagram_locked on 3.10.0-1160.45.1.el7 (BZ#2028740) * Lots of tasks are getting stuck in I/O wait waiting on the buffer_head locked by the task that is busy shrinking slab for freeing pages - 3 patches to fs/buffer.c (BZ#2030609) * [RHEL 7.9 Bug] x86/platform/uv: Add more to secondary CPU kdump info (BZ#2042462) * REGRESSION System panicking in __kmalloc+0x94 from a freelist issue introduced by a block patch. (BZ#2054743) Enhancement(s): * RHEL7.9 - kernel: Add support for CPU-MF counter second version 7 (BZ#2048920) 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/): 2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen() 2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-1160.62.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.62.1.el7.noarch.rpm kernel-doc-3.10.0-1160.62.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.62.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.62.1.el7.x86_64.rpm perf-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-1160.62.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.62.1.el7.noarch.rpm kernel-doc-3.10.0-1160.62.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.62.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.62.1.el7.x86_64.rpm perf-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-1160.62.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.62.1.el7.noarch.rpm kernel-doc-3.10.0-1160.62.1.el7.noarch.rpm ppc64: bpftool-3.10.0-1160.62.1.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-3.10.0-1160.62.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debug-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1160.62.1.el7.ppc64.rpm kernel-devel-3.10.0-1160.62.1.el7.ppc64.rpm kernel-headers-3.10.0-1160.62.1.el7.ppc64.rpm kernel-tools-3.10.0-1160.62.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-1160.62.1.el7.ppc64.rpm perf-3.10.0-1160.62.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm python-perf-3.10.0-1160.62.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1160.62.1.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debug-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-devel-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-headers-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-tools-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1160.62.1.el7.ppc64le.rpm perf-3.10.0-1160.62.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm python-perf-3.10.0-1160.62.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm s390x: bpftool-3.10.0-1160.62.1.el7.s390x.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.s390x.rpm kernel-3.10.0-1160.62.1.el7.s390x.rpm kernel-debug-3.10.0-1160.62.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.s390x.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.s390x.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1160.62.1.el7.s390x.rpm kernel-devel-3.10.0-1160.62.1.el7.s390x.rpm kernel-headers-3.10.0-1160.62.1.el7.s390x.rpm kernel-kdump-3.10.0-1160.62.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1160.62.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-1160.62.1.el7.s390x.rpm perf-3.10.0-1160.62.1.el7.s390x.rpm perf-debuginfo-3.10.0-1160.62.1.el7.s390x.rpm python-perf-3.10.0-1160.62.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.s390x.rpm x86_64: bpftool-3.10.0-1160.62.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.62.1.el7.x86_64.rpm perf-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: bpftool-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1160.62.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1160.62.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1160.62.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-1160.62.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.62.1.el7.noarch.rpm kernel-doc-3.10.0-1160.62.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.62.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.62.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.62.1.el7.x86_64.rpm perf-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.62.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.62.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.62.1.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-2021-4028 https://access.redhat.com/security/cve/CVE-2021-4083 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 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYky/ZNzjgjWX9erEAQjp+xAAkd3EPvE/yrDVpEFl9iD3V99Zq9LXbEZl G2RZodKJv7tlAIGMjl/N2zgatUewH8Dy098WaFnlo9lNsZxCwTUGYO1i0QS4OKKJ juuXbyG9Ckq9iF+6rtPudD0kMMKhhzyo0G/rlEvG3HjXXv1ERqqZxCY1Ol5Y1WdI BoDD3vVL0B1OwrZ5q1A9NdJH9hZf9rx5MQRRF3ZnHN+UY4AMnSvn03DiECA50M2Q s3OtDyoEv/ilesl/FO83MsuMO4eYJK3YjIb/NawOFl5lKtKxQgDTDZyyAKKiudd4 s3P0etxazxmmuDCrwF3djCqd1uzX0JEjMyfXuESI5CyQ/I4LZMTUHOBlZDKf4Rxh leSXBqkc0Vv8Hwu2LGgpUVYtbrxWvFmYs/r/ZqWiX6kPaP5VxfktBnZT5b25XEsM 9VysO5mweWHSnEsgxcxbO7No1LgTd734ikoH2FB3ARLlAkP4zDtwW/USQGjBHl2w bie/lWHyU6BHhScfUwwxg7oJeEaojpCtz/695qN36FpeAtFShOkicC97JwMGyXfv sKwHWwJof3EHZQPuqnB4yE+KfF1wSsLsfDASlEnAe5zJjqHUaw95n0xCKbHF+5UK rGmUmiJlYIrWLGP4OEeXrIJ1V2rfUH62vDO4PcU2S+Ogy03H/cIL5a74Ld+R2VVh b7kbz0OKqP4=DYi8 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce