-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:7134-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:7134 Issue date: 2022-10-25 CVE Names: CVE-2022-0494 CVE-2022-1353 CVE-2022-2588 CVE-2022-23816 CVE-2022-23825 CVE-2022-29900 CVE-2022-29901 ==================================================================== 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 (v. 8) - x86_64 Red Hat Enterprise Linux Real Time for NFV (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: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588) * kernel: information leak in scsi_ioctl() (CVE-2022-0494) * Kernel: A kernel-info-leak issue in pfkey_register (CVE-2022-1353) * hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900) * hw: cpu: AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825) * hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901) 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] BUG: using __this_cpu_add() in preemptible [00000000] - caller is __mod_memcg_lruvec_state+0x69/0x1c0 (BZ#2122600) * The latest RHEL 8.6.z4 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2125396) 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/): 2039448 - CVE-2022-0494 kernel: information leak in scsi_ioctl() 2066819 - CVE-2022-1353 Kernel: A kernel-info-leak issue in pfkey_register 2090226 - CVE-2022-23816 CVE-2022-29900 hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions 2103148 - CVE-2022-29901 hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions 2103153 - CVE-2022-23825 hw: cpu: AMD: Branch Type Confusion (non-retbleed) 2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 8): Source: kernel-rt-4.18.0-372.32.1.rt7.189.el8_6.src.rpm x86_64: kernel-rt-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-core-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-core-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-devel-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-kvm-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-modules-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debuginfo-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-devel-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-kvm-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-modules-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-modules-extra-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm Red Hat Enterprise Linux Real Time (v. 8): Source: kernel-rt-4.18.0-372.32.1.rt7.189.el8_6.src.rpm x86_64: kernel-rt-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-core-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-core-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-devel-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-modules-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debuginfo-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-devel-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-modules-4.18.0-372.32.1.rt7.189.el8_6.x86_64.rpm kernel-rt-modules-extra-4.18.0-372.32.1.rt7.189.el8_6.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-2022-0494 https://access.redhat.com/security/cve/CVE-2022-1353 https://access.redhat.com/security/cve/CVE-2022-2588 https://access.redhat.com/security/cve/CVE-2022-23816 https://access.redhat.com/security/cve/CVE-2022-23825 https://access.redhat.com/security/cve/CVE-2022-29900 https://access.redhat.com/security/cve/CVE-2022-29901 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 iQIVAwUBY1fURtzjgjWX9erEAQhnfRAAoDhExtpik/vAcXFTDPszedWn5seG+sG9 Qj0+EljqWYgcLHQv7j2ILPFf8jbyGX9E+Ug9eG63UBpPeaytwBEFm5WV/egjojLp s9mrEZmJLF/FM9mjhc6tpauOhDpbt/YtDAaB9/TTlyk4wQPMz2jBFmkrw6ZvArUX 0BgKhuEupTz5RdgFjzZrCizTfYtBdpMeurnPkbDWvGMsRTtO3lXM4hJL4dP6E+NV Z5PnDdxIoLMrqRh5iM6hVjT05k0Zr/1jx4sHnaisd3fupsfAfgCfT8l4hAWt6eos p06myqXFNb6Nhi5mMi6j8zEF1YjrRXQG69HT+uTlCoDDcp/ZAec103ejydQJtWZo ZZrlMe3VgG6gDHlvi8lypy5oczzYGd1XJD6WVqPOEjvVTVBBXNBT7IaGOkF+UPyA lCafaaG/JmCT/jmulyLEfiVq/2b6q3lw+zWyNBAPr+wFBrZ4XoGLQWnMHJdGv7R7 zaEQN1TBI2g078Nlv0BEztKQreVyuPUvyT9XD/Z9OhxIYuPQvgbO9PKv7QoSUh9n gTJO4cjzkdb+WaCohgYywX9rLAfyU7hWwc8mCy6nLVDiNys2n5Q82HGc17hsjbv9 AwJKiJh0+NM/QUN1+vVL8GkSPd4A2dvWf2rSPfsmji6hAf2gGIxyvTjBMWEQ+ZcK KFdTq0+AqkM=L2ua -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce