-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2023:4378-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:4378 Issue date: 2023-08-01 CVE Names: CVE-2022-45869 CVE-2023-0458 CVE-2023-1998 CVE-2023-3090 CVE-2023-35788 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 9. 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 NFV (v. 9) - x86_64 Red Hat Enterprise Linux RT (v. 9) - 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: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090) * kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788) * kernel: KVM: x86/mmu: race condition in direct_page_fault() (CVE-2022-45869) * kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c (CVE-2023-0458) * kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998) 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): * RHEL9 rt: blktests block/024 failed (BZ#2209920) * Backport pinned timers RT specific behavior for FIFO tasks (BZ#2210071) * kernel-rt: update RT source tree to the RHEL-9.2z2 source tree (BZ#2215122) * kernel-rt: update RT source tree to the RHEL-9.2z2b source tree (BZ#2222796) 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/): 2151317 - CVE-2022-45869 kernel: KVM: x86/mmu: race condition in direct_page_fault() 2187257 - CVE-2023-1998 kernel: Spectre v2 SMT mitigations problem 2193219 - CVE-2023-0458 kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c 2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() 2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb 6. Package List: Red Hat Enterprise Linux NFV (v. 9): Source: kernel-rt-5.14.0-284.25.1.rt14.310.el9_2.src.rpm x86_64: kernel-rt-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-devel-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-kvm-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-modules-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-modules-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debuginfo-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-devel-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-kvm-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-modules-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-modules-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-modules-extra-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm Red Hat Enterprise Linux RT (v. 9): Source: kernel-rt-5.14.0-284.25.1.rt14.310.el9_2.src.rpm x86_64: kernel-rt-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-devel-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-modules-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-modules-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debuginfo-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-devel-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-modules-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-modules-core-5.14.0-284.25.1.rt14.310.el9_2.x86_64.rpm kernel-rt-modules-extra-5.14.0-284.25.1.rt14.310.el9_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-2022-45869 https://access.redhat.com/security/cve/CVE-2023-0458 https://access.redhat.com/security/cve/CVE-2023-1998 https://access.redhat.com/security/cve/CVE-2023-3090 https://access.redhat.com/security/cve/CVE-2023-35788 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 iQIcBAEBCAAGBQJkyRTiAAoJENzjgjWX9erEX10QAJNZV/0sJaG8N4Xact4UrVy0 mlIe5j5DdkZjR2wJj4zAJXKls75ozNs8RWhjSeQnIQ1AxxeHev89R2ckTEPr4sMy GIKaJ+quNNo6e7WdcrMSDns4uw1lBuymJ8rxS4zWhmGy59ZbDlHHsMlctVkpynK7 rxgh2uK7PMPjL3wDJ6H0y3Hkw/M0EQ1VYzsL2wkPAt6cBN8bnapfVneWA1kybTzD R9En+BPFpo2PNBVh+qO6SsycflcGEEzSrMzJYfOKGdJJpJqwAeAWUUvtD635DtHX 6Sr+0GqqWO/wibmFUp/p388w2xMtfuYJngkD+8nFJEctt+OaS4324zFIwl77LPYP AzoXI1dJT5Tnrjziu5ghA8DqkLaGa4ee+LEeqdp4jWR1xTUTew1gAo0X2vVkZ0Xp K+xPahgD1qEKCrVr7bzH3gHUXEvuhQmVD9rq1xsaFGV8PI/LTpX9sKYLXg6LGnJU Kg3l3bC/nvpr7eUfOv2Y23BbUxklGRdVFQSsxuggYa4k8XxZ4bAUvuvy0vbxfDFG ddy9+SMpbvJR946xJ23/humTIcnHSpH0s2pRVNMy0jtZttTR3dShZzS5WCbOMw32 sRdWZ/EGnv34Ow3aWCETazpz3u7rdjQu5pb0Ge+rlBAJtOIrt9HO+0xZ0atBTLjd oBFhET0Ge4seiJyKh4ZT =JlKD -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce