-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2023:1469-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:1469 Issue date: 2023-03-27 CVE Names: CVE-2022-4269 CVE-2022-4744 CVE-2023-0266 ===================================================================== 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 Real Time (v. 9) - x86_64 Red Hat Enterprise Linux Real Time for NFV (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: tun: avoid double free in tun_free_netdev (CVE-2022-4744) * ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266) * kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269) 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): * kernel-rt: update RT source tree to the latest RHEL-9.1.z3 Batch (BZ#2170460) 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/): 2150272 - CVE-2022-4269 kernel: net: CPU soft lockup in TC mirred egress-to-ingress action 2156322 - CVE-2022-4744 kernel: tun: avoid double free in tun_free_netdev 2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 9): Source: kernel-rt-5.14.0-162.22.2.rt21.186.el9_1.src.rpm x86_64: kernel-rt-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-core-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-devel-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-kvm-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-devel-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-kvm-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-extra-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm Red Hat Enterprise Linux Real Time (v. 9): Source: kernel-rt-5.14.0-162.22.2.rt21.186.el9_1.src.rpm x86_64: kernel-rt-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-core-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-devel-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-devel-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-5.14.0-162.22.2.rt21.186.el9_1.x86_64.rpm kernel-rt-modules-extra-5.14.0-162.22.2.rt21.186.el9_1.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-2022-4269 https://access.redhat.com/security/cve/CVE-2022-4744 https://access.redhat.com/security/cve/CVE-2023-0266 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 iQIVAwUBZCFeo9zjgjWX9erEAQgTUg//fBVoxwGBUaAb9nrFYK8q0g1KSW54WFsi zHPZXQ4a6jvHF4Zh2uA50BV5mljbm4NsGLTw+beeJrPvEVreIlsF+AFvwtGzLF3I ELMtdGDTDgCG+A3tTtlr0IAYdshunP5TEiUobiO5Ad6Olf+6nWFaiLCSZzGn8uE6 KucMrENdG41cxU/2V9zlYaAhUcyZ5rzo2xJLeWFKDeThZnhAUsMd1ymMKwtD96f5 h1BHD1egkmhNMKsT0GZwMxxG/kGgvtvEW3vT/QOS/V8/8Hzc+XYvrs0w3Q0n9wLf cJrLyehUd8BHsQaV/sgATq5sW+07R133v6wuIWOADQk+Ns8oblZUQ6OxZ+08VT/y Y/Vkm8q6ei3LUuFizdjsoDN4Jy8woFNY6LxrtVgbqY9vC9teuaMTsSL9uP0cV3TC Jx2DXF4B9QMX2ID7lPgipmEQkXqJwtyGFfvDADXP4xP+JtZc4/AdxEtU6bd7k5lE 05Fme21iZ+2eQ87ENLkJ/HiSDgiNjwYLmt2g+QT1fI/XTd/iI7x+lMRbIFMnelM+ DX5gt/RerNgzQSIhfT42+XAnzsQkL1aIWWXYgyJ7F7wM4JAaFhq+8n3BqL/q/Yp4 prEMAYOGp7rae/y5a5BMjnt+VjaU/k1WF6t4e7LyJoX94Eo8EuhUy2slMsaGvxBr skVp9tUzijI= =uISX -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce