RLSA-2026:39180

Security

Mirrored from RHSA-2026:39180

Issued at: 2026-07-15

Updated at: 2026-07-16

Synopsis

Important: kernel-rt security update

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)

* kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (CVE-2026-46116)

* kernel: XFS data corruption using reflink ()

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.

Affected products

Rocky Linux 8 x86_64

Fixes

2481989

2482523

CVEs

CVE-2026-46086

CVE-2026-46116

Affected packages

Rocky Linux 8 x86_64 - NFV

kernel-rt-0:4.18.0-553.144.1.rt7.485.el8_10.src.rpm

kernel-rt-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-core-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-core-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-debuginfo-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-devel-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debuginfo-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-kvm-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-modules-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-debug-modules-extra-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-devel-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-kvm-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-modules-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

kernel-rt-modules-extra-0:4.18.0-553.144.1.rt7.485.el8_10.x86_64.rpm

Rocky Linux 8 x86_64 - RT