RLSA-2021:4088

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RLSA-2021:4088

Summary: Important: kernel-rt security and bug fix update

Details: 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: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385) * kernel: out-of-bounds write due to a heap buffer overflow in __hidinput_change_resolution_multipliers() of hid-input.c (CVE-2021-0512) * kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) (CVE-2021-3656) 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 Rocky Linux-8.4.z source tree (BZ#2004117)

References: https://errata.rockylinux.org/RLSA-2021:4088, https://bugzilla.redhat.com/show_bug.cgi?id=1974319, https://bugzilla.redhat.com/show_bug.cgi?id=1974491, https://bugzilla.redhat.com/show_bug.cgi?id=1983988