RHSA-2026:81451 — Security Advisory
Red Hat Security Advisory: kpatch-patch-5_14_0-570_116_1, kpatch-patch-5_14_0-570_135_1, kpatch-patch-5_14_0-570_39_1, kpatch-patch-5_14_0-570_66_1, and kpatch-patch-5_14_0-570_94_1 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 13, 2026
Updated · October 30, 2026
Topic
An update for multiple packages is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-570.39.1.el9_6.
Security Fix(es):
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kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)
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kernel: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() (CVE-2026-46176)
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kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership() (CVE-2026-52933)
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kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002)
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.