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OpenAdvisories
High RHSA-2026:59663 5 CVEs

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

Published Aug 26, 2026 · Updated Oct 17, 2026

Ecosystem: Red Hat

Fixed packages 32

ReleasePackageFixed in
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-debuginfo 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-devel 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-kvm 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-extra 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-devel 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-kvm 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-extra 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-debuginfo 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-devel 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-extra 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-devel 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-core 0:5.14.0-284.188.1.rt14.473.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-extra 0:5.14.0-284.188.1.rt14.473.el9_2

Vulnerabilities 5

  • High 8.8
    CVE-2026-43112

    fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

    In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath When cifs_sanitize_prepath is called with an empty string or a string containing only delimiters (e.g., "/"), the current logic …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.8
    CVE-2026-74580 Public exploit

    vhost: reset the vring metadata cache on vring reconfiguration

    In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration vq->meta_iotlb[] caches the vhost_iotlb_map that backs each vring metadata region, and iotlb_access_ok() returns early on a cach…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 8.1
    CVE-2026-46099

    net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels

    In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels seg6_input_core() and rpl_input() call ip6_route_input() which sets a NOREF dst on the skb, then pass it to dst_cache_set_ip6() invoking…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Medium 6.3
    CVE-2026-53059

    dm log: fix out-of-bounds write due to region_count overflow

    In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit), but dm_sector_div_up() returns secto…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2026-31411

    net: atm: fix crash due to unvalidated vcc pointer in sigd_send()

    In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigd_send() Reproducer available at [1]. The ATM send path (sendmsg -> vcc_sendmsg -> sigd_send) reads the vcc pointer from msg->vcc and …

    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=2456521
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2467015
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481972
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492277
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_59663.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-31411
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-31411
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-31411
  • article
    https://lore.kernel.org/linux-cve-announce/2026040820-CVE-2026-31411-7ef9@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-43112
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43112
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43112
  • article
    https://lore.kernel.org/linux-cve-announce/2026050625-CVE-2026-43112-f37f@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-46099
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46099
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46099
  • article
    https://lore.kernel.org/linux-cve-announce/2026052704-CVE-2026-46099-2a55@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-53059
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-53059
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-53059
  • article
    https://lore.kernel.org/linux-cve-announce/2026062401-CVE-2026-53059-f32e@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-74580
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2521055
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-74580
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-74580
  • article
    https://lore.kernel.org/linux-cve-announce/2026082158-CVE-2026-74580-5db9@gregkh/T