Red Hat Security Advisory

RHSA-2026:81450

kpatch-patch-4_18_0-477_107_1, kpatch-patch-4_18_0-477_120_1, kpatch-patch-4_18_0-477_130_1, kpatch-patch-4_18_0-477_143_1, and kpatch-patch-4_18_0-477_161_1 security update

Released 2026-10-12 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux BaseOS E4S (v.8.8) kpatch-patch-4_18_0-477_107_1-1-16.el8_8, kpatch-patch-4_18_0-477_120_1-1-15.el8_8, kpatch-patch-4_18_0-477_130_1-1-13.el8_8 +2

Fixes 2 records

TI-2026-45567 CVE-2026-64002 · GHSA-gghq-r38g-rg55

ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()

LOW 35

In the Linux kernel, the following vulnerability has been resolved: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() ipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0013 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-416

TI-2026-33905 CVE-2026-46181 · GHSA-pw2f-xmgc-f22m

RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()

LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() Sashiko points out the radix_tree itself is RCU safe, but nothing ever frees the mlx4_srq struct with…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00144 Published 2026-05-28 Partial fix · 6.1.191, 6.6.160 +4 CWE-366