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OpenAdvisories
Medium ALSA-2026:89816 1 CVE

Moderate: kernel security update

Published Oct 26, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)

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.

Fixed packages 25

ReleasePackageFixed in
AlmaLinux · 8 bpftool 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-abi-stablelists 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-core 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-cross-headers 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-debug 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-debug-core 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-debug-devel 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-debug-modules 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-debug-modules-extra 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-devel 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-doc 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-headers 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-modules 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-modules-extra 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-tools 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-tools-libs 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-tools-libs-devel 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-zfcpdump 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-core 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-devel 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules 4.18.0-553.179.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules-extra 4.18.0-553.179.1.el8_10
AlmaLinux · 8 perf 4.18.0-553.179.1.el8_10
AlmaLinux · 8 python3-perf 4.18.0-553.179.1.el8_10

Vulnerabilities 1

  • High 8.8
    CVE-2026-74515

    KVM: s390: pci: Reject adapter interrupt forwarding if already enabled

    In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled The MPCIFC instruction doesn't allow registering adapter interrupts without first unregistering. So reject any request t…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-74515
  • report
    https://bugzilla.redhat.com/2517006
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-89816.html