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High ALSA-2026:0759 5 CVEs

Important: kernel security update

Published Jan 19, 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: smb: client: Fix use-after-free in cifs_fill_dirent (CVE-2025-38051)
* kernel: smb: client: let recv_done verify data_offset, data_length and remaining_data_length (CVE-2025-39933)
* kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free (CVE-2023-53552)
* kernel: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies (CVE-2025-40096)
* kernel: net: atlantic: fix fragment overflow handling in RX path (CVE-2025-68301)

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 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-abi-stablelists 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-core 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-cross-headers 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-debug 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-debug-core 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-debug-devel 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-debug-modules 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-debug-modules-extra 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-devel 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-doc 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-headers 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-modules 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-modules-extra 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-tools 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-tools-libs 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-tools-libs-devel 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-zfcpdump 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-core 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-devel 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules 4.18.0-553.94.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules-extra 4.18.0-553.94.1.el8_10
AlmaLinux · 8 perf 4.18.0-553.94.1.el8_10
AlmaLinux · 8 python3-perf 4.18.0-553.94.1.el8_10

Vulnerabilities 5

  • Critical 9.8
    CVE-2025-68301

    net: atlantic: fix fragment overflow handling in RX path

    In the Linux kernel, the following vulnerability has been resolved: net: atlantic: fix fragment overflow handling in RX path The atlantic driver can receive packets with more than MAX_SKB_FRAGS (17) fragments when handling large multi-descriptor packets. This…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.4
    CVE-2025-39933

    smb: client: let recv_done verify data_offset, data_length and remaining_data_length

    In the Linux kernel, the following vulnerability has been resolved: smb: client: let recv_done verify data_offset, data_length and remaining_data_length This is inspired by the related server fixes.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2023-53552

    drm/i915: mark requests for GuC virtual engines to avoid use-after-free

    In the Linux kernel, the following vulnerability has been resolved: drm/i915: mark requests for GuC virtual engines to avoid use-after-free References to i915_requests may be trapped by userspace inside a sync_file or dmabuf (dma-resv) and held indefinitely a…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-38051

    smb: client: Fix use-after-free in cifs_fill_dirent

    In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifs_fill_dirent There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the fo…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-40096

    drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies

    In the Linux kernel, the following vulnerability has been resolved: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies When adding dependencies with drm_sched_job_add_dependency(), that function consumes the fence reference both on su…

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

References

  • report
    https://access.redhat.com/security/cve/CVE-2023-53552
  • report
    https://access.redhat.com/security/cve/CVE-2025-38051
  • report
    https://access.redhat.com/security/cve/CVE-2025-39933
  • report
    https://access.redhat.com/security/cve/CVE-2025-40096
  • report
    https://access.redhat.com/security/cve/CVE-2025-68301
  • report
    https://bugzilla.redhat.com/2373329
  • report
    https://bugzilla.redhat.com/2401432
  • report
    https://bugzilla.redhat.com/2401514
  • report
    https://bugzilla.redhat.com/2407333
  • report
    https://bugzilla.redhat.com/2422836
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-0759.html