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High 1 exploited CVE RHSA-2026:23471 3 CVEs

Red Hat Security Advisory: kpatch-patch-4_18_0-477_107_1, kpatch-patch-4_18_0-477_120_1, kpatch-patch-4_18_0-477_130_1, kpatch-patch-4_18_0-477_89_1, and kpatch-patch-4_18_0-477_97_1 security update

Published Jun 5, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 15

ReleasePackageFixed in
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_107_1 0:1-6.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_107_1-debuginfo 0:1-6.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_107_1-debugsource 0:1-6.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_120_1 0:1-5.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_120_1-debuginfo 0:1-5.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_120_1-debugsource 0:1-5.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_130_1 0:1-3.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_130_1-debuginfo 0:1-3.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_130_1-debugsource 0:1-3.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_89_1 0:1-12.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_89_1-debuginfo 0:1-12.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_89_1-debugsource 0:1-12.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_97_1 0:1-10.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_97_1-debuginfo 0:1-10.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_97_1-debugsource 0:1-10.el8_8

Vulnerabilities 3

  • High 7.8
    CVE-2026-46300 Exploited Public exploit EPSS 16%

    net: skbuff: preserve shared-frag marker during coalescing

    In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain t…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
    KEV Oct 28, 2026
  • High 8.8
    CVE-2026-43503 Public exploit

    net: skbuff: propagate shared-frag marker through frag-transfer helpers

    In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail to propagate the SKBFL_SHARED_FRAG bit in skb_shi…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.1
    CVE-2026-46333 Public exploit

    ptrace: slightly saner 'get_dumpable()' logic

    In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and ma…

    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=2477015
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2477802
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_23471.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-43503
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2480902
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-003
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43503
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43503
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-43503.mbox
  • report
    https://access.redhat.com/security/cve/CVE-2026-46300
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46300
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46300
  • article
    https://www.cisa.gov/known-exploited-vulnerabilities-catalog
  • report
    https://access.redhat.com/security/cve/CVE-2026-46333
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-004
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46333
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46333
  • article
    https://blog.qualys.com/vulnerabilities-threat-research/2026/05/20/cve-2026-46333-local-root-privilege-escalation-and-credential-disclosure-in-the-linux-kernel-ptrace-path
  • article
    https://github.com/torvalds/linux/commit/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a