Red Hat alert RHSA-2025:15656-01 (kernel)

An update for kernel is now available for Red Hat Enterprise Linux 8.2
Advanced 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: ext4: use-after-free in ext4_xattr_set_entry() (CVE-2023-2513)

* kernel: ipv6: mcast: extend RCU protection in igmp6_send() (CVE-2025-21759)

* kernel: udp: Fix memory accounting leak. (CVE-2025-22058)

* kernel: md-raid10: fix KASAN warning (CVE-2022-50211)

* kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and
posix_cpu_timer_del() (CVE-2025-38352)

* kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

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.

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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2025/rhsa-2025_15656.json