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OpenAdvisories
High RHSA-2025:10371 3 CVEs

Red Hat Security Advisory: kernel security update

Published Jul 7, 2025 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 91

ReleasePackageFixed in
Red Hat · RHEL 10 enterprise_linux:10.0 kernel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-devel-matched 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debug-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-devel-matched 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-64k-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-abi-stablelists 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-devel-matched 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debug-uki-virt 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debuginfo-common-aarch64 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debuginfo-common-ppc64le 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debuginfo-common-s390x 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-debuginfo-common-x86_64 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-devel-matched 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-doc 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debug-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-64k-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-kvm 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debug-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-kvm 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-rt-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-tools 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-tools-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-tools-libs 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-tools-libs-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-uki-virt 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-uki-virt-addons 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-devel 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-devel-matched 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-modules 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-modules-core 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 kernel-zfcpdump-modules-extra 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 libperf 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 libperf-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 perf 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 perf-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 python3-perf 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 python3-perf-debuginfo 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 rtla 0:6.12.0-55.20.1.el10_0
Red Hat · RHEL 10 enterprise_linux:10.0 rv 0:6.12.0-55.20.1.el10_0

Vulnerabilities 3

  • High 8.6
    CVE-2025-37799

    vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp

    In the Linux kernel, the following vulnerability has been resolved: vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp vmxnet3 driver's XDP handling is buggy for packet sizes using ring0 (that is, packet sizes between 128 - 3k bytes). We noticed MTU-…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-21759

    ipv6: mcast: extend RCU protection in igmp6_send()

    In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6_send() igmp6_send() can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a pot…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-21991

    x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes

    In the Linux kernel, the following vulnerability has been resolved: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes Currently, load_microcode_amd() iterates over all NUMA nodes, retrieves their CPU masks and unconditionally accesses p…

    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=2348596
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2356917
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2363876
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_10371.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-21759
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-21759
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-21759
  • article
    https://kernelcve.org/list/?q=CVE-2025-21759
  • article
    https://lore.kernel.org/linux-cve-announce/2025022604-CVE-2025-21759-ad7c@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-21991
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-21991
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-21991
  • article
    https://lore.kernel.org/linux-cve-announce/2025040257-CVE-2025-21991-6aae@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-37799
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-37799
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-37799
  • article
    https://kernelcve.org/list/?q=CVE-2025-37799
  • article
    https://lore.kernel.org/linux-cve-announce/2025050349-CVE-2025-37799-bb83@gregkh/T