{"schema_version": "1.7.0", "id": "RLSA-2026:6037", "modified": "2026-04-07T00:09:07.787824Z", "published": "2026-04-07T00:00:52.228547Z", "upstream": ["CVE-2025-38180", "CVE-2026-23204", "CVE-2026-23209"], "summary": "Moderate: kernel security update", "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem (CVE-2025-38180)\n\n* kernel: macvlan: fix error recovery in macvlan_common_newlink() (CVE-2026-23209)\n\n* kernel: net/sched: cls_u32: use skb_header_pointer_careful() (CVE-2026-23204)\n\nFor 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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "kernel", "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-8&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:4.18.0-553.115.1.el8_10"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:6037"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376376"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439900"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439931"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}]}