{"id":"RLSA-2026:6037","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.","modified":"2026-04-07T00:31:14.700236Z","published":"2026-04-07T00:00:52.228547Z","upstream":["CVE-2025-38180","CVE-2026-23204","CVE-2026-23209"],"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"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:8","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"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:6037.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}