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OpenAdvisories
Critical RHSA-2026:47017 5 CVEs

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published Jul 28, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 90

ReleasePackageFixed in
Red Hat · RHEL 10 enterprise_linux:10.2 kernel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-devel-matched 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debug-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-devel-matched 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-64k-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-abi-stablelists 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-devel-matched 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debug-uki-virt 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debuginfo-common-aarch64 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debuginfo-common-ppc64le 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debuginfo-common-s390x 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-debuginfo-common-x86_64 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-devel-matched 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-doc 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-modules-extra-matched 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debug-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-64k-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debug-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-rt-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-tools 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-tools-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-tools-libs 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-tools-libs-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-uki-virt 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-uki-virt-addons 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-devel 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-devel-matched 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-modules 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-modules-core 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 kernel-zfcpdump-modules-extra 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 libperf 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 libperf-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 perf 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 perf-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 python3-perf 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 python3-perf-debuginfo 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 rtla 0:6.12.0-211.40.1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 rv 0:6.12.0-211.40.1.el10_2

Vulnerabilities 5

  • Critical 9.8
    CVE-2026-52993 Public exploit

    tipc: fix double-free in tipc_buf_append()

    In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one. In tipc_buf_append(), it was being called with a point…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Critical 9.8
    CVE-2026-53006

    ipv6: fix possible UAF in icmpv6_rcv()

    In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)-…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.8
    CVE-2026-53281

    iommu/vt-d: Avoid NULL pointer dereference or refcount corruption

    In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption Commit 60f030f7418d ("iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE") fixed a NULL pointer dereference in an unlikely situ…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.5
    CVE-2026-31635 Public exploit

    rxrpc: fix oversized RESPONSE authenticator length check

    In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix oversized RESPONSE authenticator length check rxgk_verify_response() decodes auth_len from the packet and is supposed to verify that it fits in the remaining bytes. The existing ch…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2026-46086

    net: bridge: use a stable FDB dst snapshot in RCU readers

    In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keepin…

    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=2481989
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492363
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492437
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2493728
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_47017.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-31635
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2461567
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-31635
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-31635
  • article
    https://lore.kernel.org/linux-cve-announce/2026042455-CVE-2026-31635-73bd@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-46086
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46086
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46086
  • article
    https://kernelcve.org/list/?q=CVE-2026-46086
  • article
    https://lore.kernel.org/linux-cve-announce/2026052701-CVE-2026-46086-d3c8@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-52993
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-52993
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-52993
  • article
    https://lore.kernel.org/linux-cve-announce/2026062445-CVE-2026-52993-34a2@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-53006
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-53006
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-53006
  • article
    https://lore.kernel.org/linux-cve-announce/2026062448-CVE-2026-53006-2b02@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-53281
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-53281
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-53281
  • article
    https://lore.kernel.org/linux-cve-announce/2026062615-CVE-2026-53281-bce7@gregkh/T