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OpenAdvisories
Medium ALSA-2025:16372 3 CVEs

Moderate: kernel security update

Published Sep 22, 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: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
* kernel: do_change_type(): refuse to operate on unmounted/not ours mounts (CVE-2025-38498)
* kernel: HID: core: Harden s32ton() against conversion to 0 bits (CVE-2025-38556)

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 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-abi-stablelists 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-core 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-cross-headers 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-debug 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-debug-core 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-debug-devel 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-debug-modules 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-debug-modules-extra 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-devel 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-doc 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-headers 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-modules 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-modules-extra 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-tools 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-tools-libs 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-tools-libs-devel 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-zfcpdump 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-core 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-devel 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules 4.18.0-553.76.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules-extra 4.18.0-553.76.1.el8_10
AlmaLinux · 8 perf 4.18.0-553.76.1.el8_10
AlmaLinux · 8 python3-perf 4.18.0-553.76.1.el8_10

Vulnerabilities 3

  • High 7.8
    CVE-2025-38498

    do_change_type(): refuse to operate on unmounted/not ours mounts

    In the Linux kernel, the following vulnerability has been resolved: do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns pe…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.0
    CVE-2025-38461

    vsock: Fix transport_* TOCTOU

    In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_* TOCTOU Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer. This also takes care of an insecure call in vsock_use_loca…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2025-38556

    HID: core: Harden s32ton() against conversion to 0 bits

    In the Linux kernel, the following vulnerability has been resolved: HID: core: Harden s32ton() against conversion to 0 bits Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity t…

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

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-38461
  • report
    https://access.redhat.com/security/cve/CVE-2025-38498
  • report
    https://access.redhat.com/security/cve/CVE-2025-38556
  • report
    https://bugzilla.redhat.com/2383513
  • report
    https://bugzilla.redhat.com/2384422
  • report
    https://bugzilla.redhat.com/2389456
  • advisory
    https://errata.almalinux.org/8/ALSA-2025-16372.html