{"id":"RLSA-2026:66180","summary":"Important: kernel security, bug fix, and enhancement update","details":"The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)\n\n* kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)\n\n* kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)\n\n* kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)\n\n* kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)\n\n* kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)\n\n* kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)\n\n* kernel: Revert \"net/smc: Introduce TCP ULP support\" (CVE-2026-46330)\n\n* kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)\n\n* kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)\n\n* kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)\n\n* kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366)\n\n* kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)\n\n* kernel: rhashtable: clear stale iter-\u003ep on table restart (CVE-2026-64563)\n\n* kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)\n\n* kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)\n\n* kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)\n\nBug Fix(es) and Enhancement(s):\n\n* KSM to deduplicate only zero pages [rhel-9.8.z] (JIRA:Rocky Linux-249161)\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":"2026-09-11T12:30:02.634033213Z","published":"2026-09-11T12:05:26.835797Z","upstream":["CVE-2026-43133","CVE-2026-43339","CVE-2026-43493","CVE-2026-46015","CVE-2026-46149","CVE-2026-46266","CVE-2026-46306","CVE-2026-46330","CVE-2026-53002","CVE-2026-53223","CVE-2026-53275","CVE-2026-53366","CVE-2026-64034","CVE-2026-64563","CVE-2026-64597","CVE-2026-72129","CVE-2026-74480"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:66180"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:66180"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467065"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468102"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479812"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2481936"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482566"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2484456"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486463"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486999"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492329"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492811"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492841"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2501252"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502394"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2510892"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511932"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516731"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2517046"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:66180"}],"affected":[{"package":{"name":"kernel","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.14.0-687.46.1.el9_8"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:66180.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}