RHSA-2022:5220: Important: kernel security and bug fix update

First published: Tue Jun 28 2022(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012)</li> <li> kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)</li> <li> kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-1966)</li> <li> kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666)</li> <li> kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check (CVE-2020-29368)</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> slub corruption during LPM of hnv interface (BZ#2081252)</li> <li> sleeping function called from invalid context at kernel/locking/spinlock_rt.c:35 (BZ#2082090)</li> <li> Backport request of "genirq: use rcu in kstat_irqs_usr()" (BZ#2083310)</li> <li> kernel memory leak while freeing nested actions (BZ#2086604)</li> <li> dm: sync rhel-8.6 with upstream 5.13 through 5.16 fixes and improvements (BZ#2088036)</li> <li> NFS processing deadlock in low memory condition (BZ#2094459)</li>

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