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OpenAdvisories
High ALSA-2026:16195 1 CVE

Important: kernel security update

Published May 12, 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: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)

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 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-abi-stablelists 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-core 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-cross-headers 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-debug 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-debug-core 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-debug-devel 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-debug-modules 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-debug-modules-extra 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-devel 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-doc 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-headers 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-modules 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-modules-extra 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-tools 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-tools-libs 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-tools-libs-devel 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-zfcpdump 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-core 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-devel 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules 4.18.0-553.124.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules-extra 4.18.0-553.124.1.el8_10
AlmaLinux · 8 perf 4.18.0-553.124.1.el8_10
AlmaLinux · 8 python3-perf 4.18.0-553.124.1.el8_10

Vulnerabilities 1

  • High 8.8
    CVE-2026-43284 Public exploit EPSS 94%

    xfrm: esp: avoid in-place decrypt on shared skb frags

    In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter()…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-43284
  • report
    https://bugzilla.redhat.com/2467771
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-16195.html