-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2023:0854-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:0854 Issue date: 2023-02-21 CVE Names: CVE-2022-2873 CVE-2022-41222 CVE-2022-43945 ==================================================================== 1. Summary: An update for kernel-rt 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 Enterprise Linux Real Time for NFV (v. 8) - x86_64 Red Hat Enterprise Linux for Real Time (v. 8) - x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222) * kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945) * kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873) 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-RT: Backport use of a dedicate thread for timer wakeups (BZ#2127204) * SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132062) * Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel [RT-8] (BZ#2139851) * scheduling while atomic in fpu_clone() -> fpu_inherit_perms() (BZ#2154469) * The latest RHEL 8.7.z2 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2159806) 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/): 2119048 - CVE-2022-2873 kernel: an out-of-bounds vulnerability in i2c-ismt driver 2138818 - CVE-2022-41222 kernel: mm/mremap.c use-after-free vulnerability 2141752 - CVE-2022-43945 kernel: nfsd buffer overflow by RPC message over TCP with garbage data 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 8): Source: kernel-rt-4.18.0-425.13.1.rt7.223.el8_7.src.rpm x86_64: kernel-rt-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-core-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-core-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-devel-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-kvm-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-modules-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debuginfo-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-devel-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-kvm-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-modules-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-modules-extra-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm Red Hat Enterprise Linux for Real Time (v. 8): Source: kernel-rt-4.18.0-425.13.1.rt7.223.el8_7.src.rpm x86_64: kernel-rt-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-core-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-core-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-devel-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-modules-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debuginfo-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-devel-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-modules-4.18.0-425.13.1.rt7.223.el8_7.x86_64.rpm kernel-rt-modules-extra-4.18.0-425.13.1.rt7.223.el8_7.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-2022-2873 https://access.redhat.com/security/cve/CVE-2022-41222 https://access.redhat.com/security/cve/CVE-2022-43945 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 2023 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY/S5DNzjgjWX9erEAQgTIQ//bAzG6t2ueT9ZjapRWki1kFItX3fe5b1h FeuLn1+ukx221h24MbM6mzoTiYTdi5DzSsU+QTFQEyiuiMxdXUIE/teXn3AH87kr WfTgJNRrPUAmNmujxNUbnc4AyOhDQUbEAZjY9fB9SorBlrg4dDXt0eed3BCFRmuX uYQhDTkckLnFSwZwqH86zrhIYAYgoZipZKYFjTK2h4oK6qhJO5cW0Z4mpgmeMOcG HiSCgi4yk2JElTtLZGxag0wVa3i91OaWia0JYAt7gIuTiHHvR7Wlu/UfSjaFont6 gX0pDxfwYO55fpoxRHrWQjwmpseIao/A6EgWdPqc2al/GJaqSscw4I5aXeWgCl+H aReYW8JGpKo5RLrcAsLrw8UfUPTFY7uUOuyRt0hXgmTq2no75wqgrk8XsDWgADms Gu92lNIGiLvG/bJKZHhr/NG5SZA3Fq2LXPXiuS2NCtuo95b3R07fxib65zifFyk1 Xs2u64G48MazXBATSO/gjxpZ8i0FUv59t793KPwY6iC3orjCvykYHU6tIqw6rQxn eWb/Cz10K9FrwwaYlYeVr5i+48XxD+o4Vplmn+k7l1GA/PkMhDt4T4WWaWLB6AB2 lONtNwfqIp9KD2z4c6m6g0M0djyM2NNQF8t0PAdJlfOJgub8xEmzCXeiGW2mhIHX P/ZrBAx7UuQ=aH9p -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce