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OpenAdvisories
High ALSA-2025:23241 3 CVEs

Important: kernel security update

Published Dec 16, 2025 · 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: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (CVE-2025-38499)
* kernel: iommufd: Fix race during abort for file descriptors (CVE-2025-39966)
* kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails (CVE-2025-40176)

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 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-cross-headers 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-devel-matched 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-doc 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-headers 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-debug 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-tools 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-tools-libs 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-uki-virt 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-611.16.1.el9_7
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-611.16.1.el9_7
AlmaLinux · 9 libperf 5.14.0-611.16.1.el9_7
AlmaLinux · 9 perf 5.14.0-611.16.1.el9_7
AlmaLinux · 9 python3-perf 5.14.0-611.16.1.el9_7
AlmaLinux · 9 rtla 5.14.0-611.16.1.el9_7
AlmaLinux · 9 rv 5.14.0-611.16.1.el9_7

Vulnerabilities 3

  • Critical 9.8
    CVE-2025-40176

    tls: wait for pending async decryptions if tls_strp_msg_hold fails

    In the Linux kernel, the following vulnerability has been resolved: tls: wait for pending async decryptions if tls_strp_msg_hold fails Async decryption calls tls_strp_msg_hold to create a clone of the input skb to hold references to the memory it uses. If we …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-38499

    clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns

    In the Linux kernel, the following vulnerability has been resolved: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns What we want is to verify there is that clone won't expose something hidden by a mount we wouldn't be able to …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-39966

    iommufd: Fix race during abort for file descriptors

    In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix race during abort for file descriptors fput() doesn't actually call file_operations release() synchronously, it puts the file on a work queue and it will be released eventually. …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-38499
  • report
    https://access.redhat.com/security/cve/CVE-2025-39966
  • report
    https://access.redhat.com/security/cve/CVE-2025-40176
  • report
    https://bugzilla.redhat.com/2387670
  • report
    https://bugzilla.redhat.com/2404107
  • report
    https://bugzilla.redhat.com/2414524
  • advisory
    https://errata.almalinux.org/9/ALSA-2025-23241.html