{"schema_version": "1.7.0", "id": "RLSA-2026:86033", "modified": "2026-10-22T00:12:11.639249Z", "published": "2026-10-22T00:04:07.745746Z", "upstream": ["CVE-2026-31678", "CVE-2026-52935", "CVE-2026-63899", "CVE-2026-63962", "CVE-2026-63974", "CVE-2026-64024", "CVE-2026-64032", "CVE-2026-64114", "CVE-2026-64572", "CVE-2026-74509", "CVE-2026-80590", "CVE-2026-89633", "CVE-2026-93817", "CVE-2026-98260", "CVE-2026-99999"], "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: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678)\n\n* kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935)\n\n* kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899)\n\n* kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032)\n\n* kernel: tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (CVE-2026-64024)\n\n* kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962)\n\n* kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974)\n\n* kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (CVE-2026-64114)\n\n* kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)\n\n* kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509)\n\n* kernel: Linux kernel: Denial of Service due to incorrect GSO state handling in network fragment reassembly (CVE-2026-80590)\n\n* kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633)\n\n* kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)\n\n* kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation ()\n\n* kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260)\n\n* kernel: ipv4: validate checksum_start before completing checksum (CVE-2026-99999)\n\nBug Fix(es) and Enhancement(s):\n\n* Batch: z-stream xfrm - rhel-9.8.z (NST-Core-26W38) (JIRA:Rocky Linux-256697)\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:C/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": "0:5.14.0-687.59.1.el9_8"}], "database_specific": {"yum_repository": "BaseOS"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:86033"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461761"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492098"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502325"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502332"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502333"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502356"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502462"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502486"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511413"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516967"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525413"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532230"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2540391"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546491"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553429"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:86033"}], "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-2026:86033"}}