First published: Tue Aug 10 2021(Updated: )
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.<br>Security Fix(es):<br><li> kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)</li> <li> kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)</li> <li> kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)</li> 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.<br>Bug Fix(es):<br><li> kernel-rt: update RT source tree to the RHEL-8.4.z source tree (BZ#1985050)</li> <li> kernel-rt: Merge mm/memcg: Fix kmem_cache_alloc() performance regression (BZ#1987102)</li>
Affected Software | Affected Version | How to fix |
---|---|---|
redhat/kernel-rt | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-core | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug-core | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug-debuginfo | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug-devel | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug-modules | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug-modules-extra | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debuginfo | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-devel | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-modules | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-modules-extra | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-debug-kvm | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
redhat/kernel-rt-kvm | <4.18.0-305.12.1.rt7.84.el8_4 | 4.18.0-305.12.1.rt7.84.el8_4 |
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