{"schema_version": "1.7.0", "id": "RLSA-2026:64808", "modified": "2026-09-09T12:12:57.619649Z", "published": "2026-09-09T12:05:17.368443Z", "upstream": ["CVE-2025-38004", "CVE-2026-52933", "CVE-2026-53000", "CVE-2026-64136", "CVE-2026-64287", "CVE-2026-64319", "CVE-2026-64320", "CVE-2026-64384"], "summary": "Important: 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: can: bcm: add locking for bcm_op runtime updates (CVE-2025-38004)\n\n* kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership() (CVE-2026-52933)\n\n* kernel: netfilter: nat: use kfree_rcu to release ops (CVE-2026-53000)\n\n* kernel: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() (CVE-2026-64136)\n\n* kernel: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CVE-2026-64320)\n\n* kernel: nvmet-auth: validate reply message payload bounds against transfer length (CVE-2026-64319)\n\n* kernel: KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU (CVE-2026-64287)\n\n* kernel: smb: client: fix change notify replay double-free (CVE-2026-64384)\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:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "kernel", "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:5.14.0-687.45.1.el9_8"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:64808"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2370992"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492097"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492273"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502527"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507061"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507096"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507129"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507287"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:64808"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:64808"}}