RLSA-2023:1584

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RLSA-2023:1584

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: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378) * ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266) * kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386) * 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): * Lazy irq_work does not raise softirq on PREEMPT_RT [rhel-8] (BZ#2172163) * The latest Rocky Linux 8.7.z3 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2172278)

References: https://errata.rockylinux.org/RLSA-2023:1584, https://bugzilla.redhat.com/show_bug.cgi?id=2150272, https://bugzilla.redhat.com/show_bug.cgi?id=2152548, https://bugzilla.redhat.com/show_bug.cgi?id=2159505, https://bugzilla.redhat.com/show_bug.cgi?id=2163379