RLSA-2026:83207
Important: kernel security, bug fix, and enhancement update
Published Oct 16, 2026 · corrected/updated Oct 16, 2026 · evidence confidence medium
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (CVE-2026-45859) * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319) * kernel: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CVE-2026-53011) * kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899) * kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032) * kernel: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs (CVE-2026-64030) * kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974) * kernel: idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() (CVE-2026-64162) * kernel: Linux kernel: Denial of Service due to use-after-free in act_tunnel_key (CVE-2026-68377) * kernel: net/iucv: fix use-after-free of a severed iucv_path (CVE-2026-68140) * kernel: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CVE-2026-72262) * kernel: dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() (CVE-2026-74574) * kernel: ALSA: usx2y: bound the hwdep mmap fault offset (CVE-2026-74641) * kernel: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (CVE-2026-80985) * kernel: svcrdma: Validate Read chunk positions before reconstruction (CVE-2026-89526) * kernel: nfsd: don't free session slots that are still in use (CVE-2026-89689) * kernel: NFSD: Prevent client use-after-free during blocked-lock reaping (CVE-2026-90036) * kernel: media: cx231xx: reject geometry changes while the VBI queue is busy (CVE-2026-89894) * kernel: SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry (CVE-2026-93207) * kernel: svcrdma: Reject Write/Reply chunks with segcount 0 (CVE-2026-93228) Bug Fix(es) and Enhancement(s): * cannot use VFs of i40e/ice NIC in bond device (JIRA:
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
RLSA-2026:83207 is a high public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: kernel (0 → 0:6.12.0-211.66.1.el10_2). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 8.1. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: osv. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 16, 2026 · OSV.dev
Detected
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (CVE-2026-45859) * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319) * kernel: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CVE-2026-53011) * ker
Oct 16, 2026 · OSV.dev
Fix available
kernel fixed in 0:6.12.0-211.66.1.el10_2
Oct 16, 2026 · OSV.dev
Fix available
kernel fixed in 0:6.12.0-211.66.1.el10_2
Oct 16, 2026 · OSV.dev
Updated
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (CVE-2026-45859) * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319) * kernel: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CVE-2026-53011) * ker
Affected
- Rocky Linux:10 kernel0 → 0:6.12.0-211.66.1.el10_2