Issued at: 2026-10-16
Updated at: 2026-10-16
Advisory content derived from Red Hat RHSA-2026:83207, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: kernel security, bug fix, and enhancement update
Description
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:Rocky Linux-143410)
* ionic: commit backported to 9.8 missing in 10.2 (JIRA:Rocky Linux-165657)
For 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.