Issued at: 2026-08-27
Updated at: 2026-08-28
Advisory content derived from Red Hat RHSA-2026:59723, © 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: ksm: use range-walk function to jump over holes in scan_get_next_rmap_item (CVE-2025-68211)
* kernel: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() (CVE-2026-23003)
* kernel: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry (CVE-2026-43114)
* kernel: sctp: purge outqueue on stale COOKIE-ECHO handling (CVE-2026-52924)
* kernel: netfilter: xt_policy: fix strict mode inbound policy matching (CVE-2026-52920)
* kernel: zram: fix use-after-free in zram_bvec_write_partial() (CVE-2026-53185)
* kernel: netfilter: require Ethernet MAC header before using eth_hdr() (CVE-2026-53131)
* kernel: netfilter: conntrack_irc: fix possible out-of-bounds read (CVE-2026-53268)
* kernel: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191)
* kernel: netfilter: ipset: fix race between dump and ip_set_list resize (CVE-2026-64189)
* kernel: Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count (CVE-2026-64277)
* kernel: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count (CVE-2026-64276)
* kernel: net: ipv6: use-after-free in fib6_rule_suppress due to stale res->rt6 pointer (CVE-2026-74581)
Bug Fix(es) and Enhancement(s):
* [Rocky Linux-9.8.z] Intel CWF: CPU is unable to obtain cstate1 on idle system (JIRA:Rocky Linux-166118)
* ss core dumped when there is an SCTP session [rhel-9.8.z] (JIRA:Rocky Linux-212398)
* [IBM 9.9 FEAT] zcrypt driver overwrite function - kernel part [rhel-9.8.z] (JIRA:Rocky Linux-245333)
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.