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OpenAdvisories
Critical RHSA-2026:0643 6 CVEs

Red Hat Security Advisory: kernel security update

Published Jan 15, 2026 · Updated Sep 25, 2026

Ecosystem: Red Hat

Fixed packages 24

ReleasePackageFixed in
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos bpftool 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos bpftool-debuginfo 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-abi-whitelists 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-core 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-core 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-debuginfo 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-devel 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-modules 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-modules-extra 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debuginfo 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debuginfo-common-x86_64 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-devel 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-doc 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-modules 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-modules-extra 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-tools 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-tools-debuginfo 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-tools-libs 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos perf 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos perf-debuginfo 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos python3-perf 0:4.18.0-193.181.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos python3-perf-debuginfo 0:4.18.0-193.181.1.el8_2

Vulnerabilities 6

  • Critical 9.8
    CVE-2025-68285

    libceph: fix potential use-after-free in have_mon_and_osd_map()

    In the Linux kernel, the following vulnerability has been resolved: libceph: fix potential use-after-free in have_mon_and_osd_map() The wait loop in __ceph_open_session() can race with the client receiving a new monmap or osdmap shortly after the initial map …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.8
    CVE-2023-53322

    scsi: qla2xxx: Wait for io return on terminate rport

    In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Wait for io return on terminate rport System crash due to use after free. Current code allows terminate_rport_io to exit before making sure all IOs has returned. For FCP-2 devi…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.8
    CVE-2023-53675

    scsi: ses: Fix possible desc_ptr out-of-bounds accesses

    In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fix possible desc_ptr out-of-bounds accesses Sanitize possible desc_ptr out-of-bounds accesses in ses_enclosure_data_process().

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.8
    CVE-2025-39971

    i40e: fix idx validation in config queues msg

    In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in config queues msg Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.8
    CVE-2025-39973

    i40e: add validation for ring_len param

    In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation. To add…

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

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2373329
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2395891
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2402293
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2404108
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2422801
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0643.json
  • report
    https://access.redhat.com/security/cve/CVE-2023-53322
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53322
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53322
  • article
    https://lore.kernel.org/linux-cve-announce/2025091644-CVE-2023-53322-45ba@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53675
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53675
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53675
  • article
    https://lore.kernel.org/linux-cve-announce/2025100707-CVE-2023-53675-e7ac@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-38051
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-38051
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-38051
  • article
    https://lore.kernel.org/linux-cve-announce/2025061831-CVE-2025-38051-77da@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39971
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39971
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39971
  • article
    https://lore.kernel.org/linux-cve-announce/2025101556-CVE-2025-39971-97e2@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39973
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2404116
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39973
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39973
  • article
    https://lore.kernel.org/linux-cve-announce/2025101557-CVE-2025-39973-b1a3@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-68285
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-68285
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-68285
  • article
    https://lore.kernel.org/linux-cve-announce/2025121638-CVE-2025-68285-8339@gregkh/T