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High RLSA-2025:23241 3 CVEs

Important: kernel security update

Published Dec 23, 2025 · Updated Dec 23, 2025

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 1

ReleasePackageFixed in
Rocky Linux · 9 kernel 0:5.14.0-611.16.1.el9_7

Vulnerabilities 3

  • Critical 9.8

    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 …

  • High 7.8

    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 …

  • High 7.8

    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. …

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2387670
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2404107
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2414524