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OpenAdvisories
Medium ALSA-2025:22865 2 CVEs

Moderate: kernel security update

Published Dec 8, 2025 · Updated Oct 29, 2026

Summary

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

Security Fix(es):

* kernel: can: j1939: implement NETDEV_UNREGISTER notification handler (CVE-2025-39925)
* kernel: net/mlx5: fs, fix UAF in flow counter release (CVE-2025-39979)

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 74

ReleasePackageFixed in
AlmaLinux · 9 kernel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-cross-headers 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-devel-matched 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-doc 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-headers 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-debug 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-tools 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-tools-libs 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-uki-virt 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-611.13.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-611.13.1.el9_7
AlmaLinux · 9 libperf 5.14.0-611.13.1.el9_7
AlmaLinux · 9 perf 5.14.0-611.13.1.el9_7
AlmaLinux · 9 python3-perf 5.14.0-611.13.1.el9_7
AlmaLinux · 9 rtla 5.14.0-611.13.1.el9_7
AlmaLinux · 9 rv 5.14.0-611.13.1.el9_7

Vulnerabilities 2

  • High 7.8

    net/mlx5: fs, fix UAF in flow counter release

    In the Linux kernel, the following vulnerability has been resolved: net/mlx5: fs, fix UAF in flow counter release Fix a kernel trace [1] caused by releasing an HWS action of a local flow counter in mlx5_cmd_hws_delete_fte(), where the HWS action refcount and …

  • Medium 5.5

    can: j1939: implement NETDEV_UNREGISTER notification handler

    In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEV_UNREGISTER notification handler syzbot is reporting unregister_netdevice: waiting for vcan0 to become free. Usage count = 2 problem, for j1939 protocol did not ha…

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-39925
  • report
    https://access.redhat.com/security/cve/CVE-2025-39979
  • report
    https://bugzilla.redhat.com/2400629
  • report
    https://bugzilla.redhat.com/2404109
  • advisory
    https://errata.almalinux.org/9/ALSA-2025-22865.html