RHSA-2023:4137 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 9.0 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: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)

• kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events (CVE-2023-2235)

• kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM (CVE-2022-1016)

• kernel: use-after-free related to leaf anon_vma double reuse (CVE-2022-42703)

• Kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)

• kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)

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):

• Backport kernel audit enhancements and fixes from v5.13-rc1 to v5.16-rc6 (BZ#2098210)

• INTEL 9.0 BUG VROC: RAID rebuild doesn't start after removing drive during FIO (BZ#2174890)

• HPEMC RHEL 9 BUG: acpi-cpufreq: Skip initializtion if a cpufreq driver exists (BZ#2186564)

• RHEL9.3: Update locking code to upstream 6.1 and further fixes (BZ#2187517)

• block layer: update with upstream v6.0 (BZ#2196175)

• rhel-9: Invalid character detected by rpminspect in Documentation/translations/zh_CN/process/magic-number.rst (BZ#2208244)

• Trouble getting callstacks when signal has interrupted clock_gettime (BZ#2210076)