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OpenAdvisories
High RHSA-2026:78844 1 CVE

Red Hat Security Advisory: kernel security update

Published Oct 8, 2026 · Updated Oct 10, 2026

Ecosystem: Red Hat

Fixed packages 26

ReleasePackageFixed in
Red Hat · RHEL 7 ELS rhel_els:7 bpftool 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 bpftool-debuginfo 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-abi-whitelists 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-bootwrapper 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debug 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debug-debuginfo 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debug-devel 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-ppc64 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-ppc64le 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-s390x 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-x86_64 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-devel 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-doc 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-kdump 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-kdump-debuginfo 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-kdump-devel 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools-debuginfo 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools-libs 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools-libs-devel 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 perf 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 perf-debuginfo 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 python-perf 0:3.10.0-1160.165.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 python-perf-debuginfo 0:3.10.0-1160.165.1.el7

Vulnerabilities 1

  • High 7.9
    CVE-2025-40026

    KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O

    In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O When completing emulation of instruction that generated a userspace exit for I/O, don't recheck L1 intercepts as KVM has …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2406712
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_78844.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-40026
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-40026
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-40026
  • article
    https://lore.kernel.org/linux-cve-announce/2025102841-CVE-2025-40026-760b@gregkh/T