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Fencer Vulns
high 7.8

CVE-2026-68121 json

pppoe: reload header pointer after dev_hard_header()

published 2026-08-10 2 mo ago modified 2026-10-19 20 d ago also EUVD-2026-55502

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

pppoe: reload header pointer after dev_hard_header()

pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it.

This can happen when a send is blocked in copy_from_user() while the first non-Ethernet port is added to an empty team device. The team's delegated GRE header callback then expands the skb head. PPPoE subsequently writes six bytes through the stale pointer into the freed head.

Reload the PPPoE header through the skb's network-header offset after device header creation. pskb_expand_head() updates that offset when it relocates the head.

Patch / fix

  • Linux Linux 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2
  • linux Debian 12 6.1.187-1
  • linux Debian 13 6.12.101-1
  • linux Debian 14 7.1.6-1
  • linux-6.12 Debian 12 6.12.101-1~deb12u1

debian advisories DEBIAN-CVE-2026-68121

  • linux Ubuntu 22.04 LTS 5.15.0-198.208
  • linux Ubuntu 24.04 LTS 6.8.0-147.147
  • linux Ubuntu 26.04 LTS 7.0.0-38.38
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1117.124
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1067.70
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1014.14
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1118.128
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1071.79

ubuntu advisories UBUNTU-CVE-2026-68121

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • rv enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • perf enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • rtla enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • libperf enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • kernel-64k enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • kernel-core enterprise linux nvidia 10 6.12.0-259.27.el10nv
  • kernel-tools enterprise linux nvidia 10 6.12.0-259.27.el10nv

red hat advisories RHSA-2026:73788RHSA-2026:71700RHSA-2026:71687RHSA-2026:71657RHSA-2026:71649RHSA-2026:71631

  • kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.189.1
  • kernel-syms SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.189.1
  • kernel-source SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.189.1
  • kernel-default SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 5.14.21-150500.55.189.1
  • kernel-obs-build SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.189.1
  • kernel-default-base SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.189.1.150500.6.87.4
  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.81.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.81.1

suse advisories SUSE-SU-2026:4595-1SUSE-SU-2026:4586-1SUSE-SU-2026:4254-1SUSE-SU-2026:4570-1SUSE-SU-2026:4561-1SUSE-SU-2026:4559-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.38.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.38.1

opensuse advisories openSUSE-SU-2026:21910-1

  • kernel AlmaLinux 9 5.14.0-687.52.1.el9_8
  • rv AlmaLinux 9 5.14.0-687.52.1.el9_8
  • perf AlmaLinux 9 5.14.0-687.52.1.el9_8
  • rtla AlmaLinux 9 5.14.0-687.52.1.el9_8
  • libperf AlmaLinux 9 5.14.0-687.52.1.el9_8
  • kernel-rt AlmaLinux 9 5.14.0-687.52.1.el9_8
  • kernel-64k AlmaLinux 9 5.14.0-687.52.1.el9_8
  • kernel-core AlmaLinux 9 5.14.0-687.52.1.el9_8

almalinux advisories ALSA-2026:71700ALSA-2026:71329ALSA-2026:71330ALSA-2026:71602

  • kernel Rocky Linux 10 6.12.0-211.60.1.el10_2
  • kernel Rocky Linux 9 5.14.0-687.52.1.el9_8
  • kernel-rt Rocky Linux 8 4.18.0-553.168.1.rt7.509.el8_10
  • kernel Rocky Linux 8 4.18.0-553.168.1.el8_10

rocky linux advisories RLSA-2026:71602RLSA-2026:71700RLSA-2026:71330RLSA-2026:71329

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-68121 updated cvss 7.3

kernel: pppoe: reload header pointer after dev_hard_header()

  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more Red Hat OpenShift Container Platform 5 openshift/ose-rhel-coreos-9
    affected: workaround, no fix available “See the security bulletin for a detailed mitigation procedure.”
  • Red Hat NVIDIA for RHEL 10 rv 6.12.0-259.27.el10nv, perf 6.12.0-259.27.el10nv, rtla 6.12.0-259.27.el10nv, kernel 6.12.0-259.27.el10nv, libperf 6.12.0-259.27.el10nv, kernel-64k 6.12.0-259.27.el10nv, +28 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:73788
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.144.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.144.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.144.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.144.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.144.1.el9_6
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71631
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.52.1.el9_8, perf 5.14.0-687.52.1.el9_8, rtla 5.14.0-687.52.1.el9_8, python3-perf 5.14.0-687.52.1.el9_8, kernel-devel-matched 5.14.0-687.52.1.el9_8, kernel-64k-devel-matched 5.14.0-687.52.1.el9_8, +7 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71700
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.60.1.el10_2, perf 6.12.0-211.60.1.el10_2, rtla 6.12.0-211.60.1.el10_2, python3-perf 6.12.0-211.60.1.el10_2, kernel-devel-matched 6.12.0-211.60.1.el10_2, kernel-64k-devel-matched 6.12.0-211.60.1.el10_2, +7 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71602
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.194.1.el9_2, rtla 5.14.0-284.194.1.el9_2, kernel-devel-matched 5.14.0-284.194.1.el9_2, kernel-64k-devel-matched 5.14.0-284.194.1.el9_2, kernel-debug-devel-matched 5.14.0-284.194.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.194.1.el9_2, +5 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71601
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.152.1.el9_4, perf 5.14.0-427.152.1.el9_4, rtla 5.14.0-427.152.1.el9_4, kernel-devel-matched 5.14.0-427.152.1.el9_4, kernel-64k-devel-matched 5.14.0-427.152.1.el9_4, kernel-debug-devel-matched 5.14.0-427.152.1.el9_4, +6 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71569
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.107.1.el10_0, perf 6.12.0-55.107.1.el10_0, rtla 6.12.0-55.107.1.el10_0, python3-perf 6.12.0-55.107.1.el10_0, kernel-devel-matched 6.12.0-55.107.1.el10_0, kernel-64k-devel-matched 6.12.0-55.107.1.el10_0, +7 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71599
show 31 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.144.1.el9_6, perf 5.14.0-570.144.1.el9_6, rtla 5.14.0-570.144.1.el9_6, python3-perf 5.14.0-570.144.1.el9_6, kernel-devel-matched 5.14.0-570.144.1.el9_6, kernel-64k-devel-matched 5.14.0-570.144.1.el9_6, +7 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71631
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.168.1.el8_10, kernel 4.18.0-553.168.1.el8_10, bpftool 4.18.0-553.168.1.el8_10, kernel-core 4.18.0-553.168.1.el8_10, kernel-tools 4.18.0-553.168.1.el8_10, python3-perf 4.18.0-553.168.1.el8_10, +20 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71329
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.52.1.el9_8, kernel-64k 5.14.0-687.52.1.el9_8, kernel-core 5.14.0-687.52.1.el9_8, kernel-tools 5.14.0-687.52.1.el9_8, kernel-modules 5.14.0-687.52.1.el9_8, kernel-64k-core 5.14.0-687.52.1.el9_8, +29 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71700
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.60.1.el10_2, kernel-64k 6.12.0-211.60.1.el10_2, kernel-core 6.12.0-211.60.1.el10_2, kernel-tools 6.12.0-211.60.1.el10_2, kernel-modules 6.12.0-211.60.1.el10_2, kernel-64k-core 6.12.0-211.60.1.el10_2, +30 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71602
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.209.1.el8_4, kernel 4.18.0-305.209.1.el8_4, bpftool 4.18.0-305.209.1.el8_4, kernel-core 4.18.0-305.209.1.el8_4, kernel-tools 4.18.0-305.209.1.el8_4, python3-perf 4.18.0-305.209.1.el8_4, +8 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71565
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.218.1.el8_6, kernel 4.18.0-372.218.1.el8_6, bpftool 4.18.0-372.218.1.el8_6, kernel-core 4.18.0-372.218.1.el8_6, kernel-tools 4.18.0-372.218.1.el8_6, python3-perf 4.18.0-372.218.1.el8_6, +8 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71592
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.170.1.el8_8, kernel 4.18.0-477.170.1.el8_8, bpftool 4.18.0-477.170.1.el8_8, kernel-core 4.18.0-477.170.1.el8_8, kernel-tools 4.18.0-477.170.1.el8_8, python3-perf 4.18.0-477.170.1.el8_8, +14 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71594
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.194.1.el9_2, kernel 5.14.0-284.194.1.el9_2, kernel-64k 5.14.0-284.194.1.el9_2, kernel-core 5.14.0-284.194.1.el9_2, kernel-tools 5.14.0-284.194.1.el9_2, python3-perf 5.14.0-284.194.1.el9_2, +33 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71601
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.152.1.el9_4, kernel 5.14.0-427.152.1.el9_4, kernel-64k 5.14.0-427.152.1.el9_4, kernel-core 5.14.0-427.152.1.el9_4, kernel-tools 5.14.0-427.152.1.el9_4, python3-perf 5.14.0-427.152.1.el9_4, +33 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71569
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.107.1.el10_0, kernel-64k 6.12.0-55.107.1.el10_0, kernel-core 6.12.0-55.107.1.el10_0, kernel-tools 6.12.0-55.107.1.el10_0, kernel-modules 6.12.0-55.107.1.el10_0, kernel-64k-core 6.12.0-55.107.1.el10_0, +27 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71599
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.144.1.el9_6, kernel-64k 5.14.0-570.144.1.el9_6, kernel-core 5.14.0-570.144.1.el9_6, kernel-tools 5.14.0-570.144.1.el9_6, kernel-modules 5.14.0-570.144.1.el9_6, kernel-64k-core 5.14.0-570.144.1.el9_6, +32 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71631
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.209.1.el8_4, kernel 4.18.0-305.209.1.el8_4, bpftool 4.18.0-305.209.1.el8_4, kernel-core 4.18.0-305.209.1.el8_4, kernel-tools 4.18.0-305.209.1.el8_4, python3-perf 4.18.0-305.209.1.el8_4, +15 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71565
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.218.1.el8_6, kernel 4.18.0-372.218.1.el8_6, bpftool 4.18.0-372.218.1.el8_6, kernel-core 4.18.0-372.218.1.el8_6, kernel-tools 4.18.0-372.218.1.el8_6, python3-perf 4.18.0-372.218.1.el8_6, +15 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71592
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.170.1.el8_8, kernel 4.18.0-477.170.1.el8_8, bpftool 4.18.0-477.170.1.el8_8, kernel-core 4.18.0-477.170.1.el8_8, kernel-tools 4.18.0-477.170.1.el8_8, python3-perf 4.18.0-477.170.1.el8_8, +8 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71594
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.52.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.52.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.52.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.52.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.52.1.el9_8
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71700
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.60.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.60.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.60.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.60.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.60.1.el10_2
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71602
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.107.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.107.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.107.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.107.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.107.1.el10_0
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71599
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.168.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.168.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.168.1.el8_10
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71329
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.164.1.rt56.1316.el7, kernel-rt-trace 3.10.0-1160.164.1.rt56.1316.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.164.1.rt56.1316.el7
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71657
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.168.1.rt7.509.el8_10, kernel-rt-kvm 4.18.0-553.168.1.rt7.509.el8_10, kernel-rt-core 4.18.0-553.168.1.rt7.509.el8_10, kernel-rt-modules 4.18.0-553.168.1.rt7.509.el8_10, kernel-rt-debug-kvm 4.18.0-553.168.1.rt7.509.el8_10, kernel-rt-debug-core 4.18.0-553.168.1.rt7.509.el8_10, +4 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71330
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.52.1.el9_8, kernel-rt-64k 5.14.0-687.52.1.el9_8, kernel-rt-core 5.14.0-687.52.1.el9_8, kernel-rt-modules 5.14.0-687.52.1.el9_8, kernel-rt-64k-core 5.14.0-687.52.1.el9_8, kernel-rt-debug-core 5.14.0-687.52.1.el9_8, +14 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71700
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.60.1.el10_2, kernel-rt-64k 6.12.0-211.60.1.el10_2, kernel-rt-core 6.12.0-211.60.1.el10_2, kernel-rt-modules 6.12.0-211.60.1.el10_2, kernel-rt-64k-core 6.12.0-211.60.1.el10_2, kernel-rt-debug-core 6.12.0-211.60.1.el10_2, +14 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71602
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-core 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-modules 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-debug-core 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-modules-core 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-debug-modules 5.14.0-284.194.1.rt14.479.el9_2, +4 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71606
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.152.1.el9_4, kernel-rt-core 5.14.0-427.152.1.el9_4, kernel-rt-modules 5.14.0-427.152.1.el9_4, kernel-rt-debug-core 5.14.0-427.152.1.el9_4, kernel-rt-modules-core 5.14.0-427.152.1.el9_4, kernel-rt-debug-modules 5.14.0-427.152.1.el9_4, +4 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71569
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.107.1.el10_0, kernel-rt-64k 6.12.0-55.107.1.el10_0, kernel-rt-core 6.12.0-55.107.1.el10_0, kernel-rt-modules 6.12.0-55.107.1.el10_0, kernel-rt-64k-core 6.12.0-55.107.1.el10_0, kernel-rt-debug-core 6.12.0-55.107.1.el10_0, +14 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71599
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.144.1.el9_6, kernel-rt-64k 5.14.0-570.144.1.el9_6, kernel-rt-core 5.14.0-570.144.1.el9_6, kernel-rt-modules 5.14.0-570.144.1.el9_6, kernel-rt-64k-core 5.14.0-570.144.1.el9_6, kernel-rt-debug-core 5.14.0-570.144.1.el9_6, +14 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71631
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.52.1.el9_8, kernel-rt-core 5.14.0-687.52.1.el9_8, kernel-rt-modules 5.14.0-687.52.1.el9_8, kernel-rt-debug-core 5.14.0-687.52.1.el9_8, kernel-rt-modules-core 5.14.0-687.52.1.el9_8, kernel-rt-debug-modules 5.14.0-687.52.1.el9_8, +4 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71700
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.60.1.el10_2, kernel-rt-core 6.12.0-211.60.1.el10_2, kernel-rt-modules 6.12.0-211.60.1.el10_2, kernel-rt-debug-core 6.12.0-211.60.1.el10_2, kernel-rt-modules-core 6.12.0-211.60.1.el10_2, kernel-rt-debug-modules 6.12.0-211.60.1.el10_2, +4 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71602
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-kvm 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-core 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-modules 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-debug-kvm 5.14.0-284.194.1.rt14.479.el9_2, kernel-rt-debug-core 5.14.0-284.194.1.rt14.479.el9_2, +6 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71606
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.152.1.el9_4, kernel-rt-kvm 5.14.0-427.152.1.el9_4, kernel-rt-core 5.14.0-427.152.1.el9_4, kernel-rt-modules 5.14.0-427.152.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.152.1.el9_4, kernel-rt-debug-core 5.14.0-427.152.1.el9_4, +6 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71569
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.107.1.el10_0, kernel-rt-kvm 6.12.0-55.107.1.el10_0, kernel-rt-core 6.12.0-55.107.1.el10_0, kernel-rt-modules 6.12.0-55.107.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.107.1.el10_0, kernel-rt-debug-core 6.12.0-55.107.1.el10_0, +6 more
    fixed: vendor fix “See the security bulletin for a detailed mitigation procedure.” RHSA-2026:71599

15 more fixed in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 d ago

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.