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OpenAdvisories
High RHSA-2026:27355 1 CVE

Red Hat Security Advisory: kernel security update

Published Jun 20, 2026 · Updated Oct 9, 2026

Ecosystem: Red Hat

Fixed packages 49

ReleasePackageFixed in
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos bpftool 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos bpftool-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-abi-stablelists 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-core 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-core 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-devel 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-modules 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-modules-extra 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debuginfo-common-ppc64le 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debuginfo-common-x86_64 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-devel 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-doc 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-modules 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-modules-extra 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-tools 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-tools-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-tools-libs 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos perf 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos perf-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos python3-perf 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos python3-perf-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos bpftool 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos bpftool-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-abi-stablelists 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-core 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-core 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-devel 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-modules 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-modules-extra 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debuginfo-common-x86_64 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-devel 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-doc 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-modules 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-modules-extra 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-tools 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-tools-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-tools-libs 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos perf 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos perf-debuginfo 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos python3-perf 0:4.18.0-477.148.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos python3-perf-debuginfo 0:4.18.0-477.148.1.el8_8

Vulnerabilities 1

  • High 7.8
    CVE-2026-46331 Public exploit

    net/sched: fix pedit partial COW leading to page cache corruption

    In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hi…

    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=2479492
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_27355.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-46331
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-008
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46331
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46331
  • article
    https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/