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OpenAdvisories
Critical RHSA-2026:55763 5 CVEs

Red Hat Security Advisory: kpatch-patch-5_14_0-687_10_1 security update

Published Aug 18, 2026 · Updated Oct 10, 2026

Ecosystem: Red Hat

Fixed packages 3

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::baseos kpatch-patch-5_14_0-687_10_1 0:1-6.el9_8
Red Hat · RHEL 9 enterprise_linux:9::baseos kpatch-patch-5_14_0-687_10_1-debuginfo 0:1-6.el9_8
Red Hat · RHEL 9 enterprise_linux:9::baseos kpatch-patch-5_14_0-687_10_1-debugsource 0:1-6.el9_8

Vulnerabilities 5

  • Critical 9.8
    CVE-2026-43038

    ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

    In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() Sashiko AI-review observed: In ip6_err_gen_icmpv6_unreach(), the skb is an outer IPv4 ICMP error packet where its cb contains an I…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Critical 9.8
    CVE-2026-43125

    dlm: validate length in dlm_search_rsb_tree

    In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-64530

    net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle

    In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle tcf_classify() can return TC_ACT_CONSUMED while the skb is held by the defragmentation engine (e.g. act_ct on out-of-order frag…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.1
    CVE-2026-46244

    netfilter: nft_inner: Fix IPv6 inner_thoff desync

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_inner: Fix IPv6 inner_thoff desync In nft_inner_parse_l2l3(), when processing inner IPv6 packets, ipv6_find_hdr() correctly computes the transport header offset traversing all …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-43329

    netfilter: flowtable: strictly check for maximum number of actions

    In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: * ethernet mangling (4 payload actions, 2 for each ethe…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2464397
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2467234
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468124
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2484451
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2504052
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_55763.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-43038
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43038
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43038
  • article
    https://lore.kernel.org/linux-cve-announce/2026050103-CVE-2026-43038-b591@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-43125
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43125
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43125
  • article
    https://lore.kernel.org/linux-cve-announce/2026050619-CVE-2026-43125-c9f9@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-43329
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43329
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43329
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-43329.mbox
  • report
    https://access.redhat.com/security/cve/CVE-2026-46244
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46244
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46244
  • article
    https://lore.kernel.org/linux-cve-announce/2026060309-CVE-2026-46244-e8d7@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-64530
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-64530
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-64530
  • article
    https://lore.kernel.org/linux-cve-announce/2026072624-CVE-2026-64530-52e9@gregkh/T/#u