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OpenAdvisories
High RHSA-2026:41062 3 CVEs

Red Hat Security Advisory: kernel security update

Published Jul 17, 2026 · Updated Sep 30, 2026

Ecosystem: Red Hat

Fixed packages 91

ReleasePackageFixed in
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-devel-matched 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debug-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-devel-matched 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-64k-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-abi-stablelists 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-devel-matched 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debug-uki-virt 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-aarch64 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-ppc64le 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-s390x 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-debuginfo-common-x86_64 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-devel-matched 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-doc 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debug-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-64k-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-kvm 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debug-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-kvm 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-rt-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools-libs 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-tools-libs-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-uki-virt 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-uki-virt-addons 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-devel 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-devel-matched 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-modules 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-modules-core 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 kernel-zfcpdump-modules-extra 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 libperf 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 libperf-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 perf 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 perf-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 python3-perf 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 python3-perf-debuginfo 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 rtla 0:6.12.0-55.89.1.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 rv 0:6.12.0-55.89.1.el10_0

Vulnerabilities 3

  • High 7.8
    CVE-2026-43499 Public exploit

    rtmutex: Use waiter::task instead of current in remove_waiter()

    In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollback in rt_mutex_start_proxy_lock() when …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-64600 Public exploit

    xfs: resample the data fork mapping after cycling ILOCK

    In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK xfs_reflink_fill_{cow_hole,delalloc} are both presented with an inode, a data fork mapping, and a cow fork mapping. Unfortunately, thes…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-53166 Rejected

    This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

    linux-raspi2 linux-hwe linux-azure linux-riscv Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2480453
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492805
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2498915
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_41062.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-43499
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-010
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43499
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43499
  • article
    https://lore.kernel.org/linux-cve-announce/2026052158-CVE-2026-43499-1294@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-53166
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-53166
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-53166
  • article
    https://lore.kernel.org/linux-cve-announce/2026062551-CVE-2026-53166-2861@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-64600
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-64600
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-64600
  • article
    https://cdn2.qualys.com/advisory/2026/07/22/RefluXFS.txt