RHSA-2021:2523: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7.7 Extended Update Support. 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.The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es):

• kernel: Integer overflow in Intel® Graphics Drivers (CVE-2020-12362)
• kernel: use-after-free in fs/block_dev.c (CVE-2020-15436) 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):
• RHEL7.7 - s390/dasd: Fix zero write for FBA devices (BZ#1931440)
• Kernel experiences panic in update_group_power() due to division error even with Bug 1701115 fix (BZ#1961623) Related CVEs:
• CVE-2020-12362: kernel: Integer overflow in Intel® Graphics Drivers
• CVE-2020-15436: kernel: use-after-free in fs/block_dev.c