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OpenAdvisories
Medium · 5.5 CVE-2023-6622 EUVD-2023-58845GHSA-cjq9-mv23-7rh6

Kernel: null pointer dereference vulnerability in nft_dynset_init()

Published Dec 8, 2023 · Updated Nov 5, 2026 · Assigned by redhat

Vendor: Red Hat Product: Red Hat Enterprise Linux 6 Product: Red Hat Enterprise Linux 7 Product: Red Hat Enterprise Linux 8 Product: Red Hat Enterprise Linux 9 Package: kernel Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-fips Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.5 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-vmware Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 9 — —
Red Hat Red Hat Enterprise Linux 6 — —
Red Hat Red Hat Enterprise Linux 7 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.6.8-1 —
Debian 13 linux 6.6.8-1 —
Debian 12 linux 6.1.69-1 DSA-5593-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1035.37 —
Ubuntu 24.04 LTS linux-raspi 6.7.0-1001.1 —
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-94.104 USN-6626-2, USN-6626-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1053.58 USN-6626-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1056.64 USN-6626-3
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1056.64.1 USN-6626-3
Ubuntu 22.04 LTS linux-gcp 5.15.0-1051.59 USN-6626-1
Ubuntu 22.04 LTS linux-gke +1 5.15.0-1050.55 USN-6626-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1036.42 USN-6626-1
Ubuntu 22.04 LTS linux-hwe-6.5 6.5.0-17.17~22.04.1 USN-6624-1
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1046.49 USN-6626-2, USN-6626-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1047.53 USN-6628-1
Ubuntu 22.04 LTS linux-lowlatency-hwe-6.5 6.5.0-17.17.1.1.1~22.04.1 USN-6624-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1044.44 USN-6626-1
Ubuntu 22.04 LTS linux-nvidia-6.5 6.5.0-1014.14 —
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1022.22 —
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1009.9 —
Ubuntu 22.04 LTS linux-oem-6.1 6.1.0-1033.33 USN-6639-1
Ubuntu 22.04 LTS linux-oem-6.5 6.5.0-1014.15 USN-6624-1
Ubuntu 22.04 LTS linux-oracle 5.15.0-1051.57 USN-6626-1
Ubuntu 22.04 LTS linux-riscv +24 No fix yet —
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1027.31 —
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1053.58~20.04.1 USN-6626-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1056.64~20.04.1 USN-6626-3
Ubuntu 20.04 LTS linux-azure-fde-5.15 5.15.0-1056.64~20.04.1.1 USN-6626-3
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1051.59~20.04.1 USN-6626-1
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1036.42~20.04.1 USN-6626-1
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-94.104~20.04.1 USN-6626-1
Ubuntu 20.04 LTS linux-ibm-5.15 5.15.0-1046.49~20.04.1 USN-6626-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1048.54~20.04.1 USN-6628-2
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1022.22~20.04.1 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1051.57~20.04.1 USN-6626-1
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1049.53~20.04.2 —
Ubuntu 18.04 LTS linux-gcp +13 No fix yet —
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1046.48 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1054.60 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-aws-fips 5.15.0-1053.58+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-fips 5.15.0-94.104+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-gcp-fips 5.15.0-1055.63+fips2 —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips +3 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 bpftool 7.3.0-427.13.1.el9_4 RHSA-2024:2394
RHEL 9 rv +64 5.14.0-427.13.1.el9_4 RHSA-2024:2394
RHEL 8 kernel-rt +12 4.18.0-553.rt7.342.el8_10 RHSA-2024:2950
RHEL 8 perf +26 4.18.0-553.el8_10 RHSA-2024:3138

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 bpftool 7.3.0-427.13.1.el9_4 ALSA-2024:2394
AlmaLinux 9 rv +60 5.14.0-427.13.1.el9_4 ALSA-2024:2394
AlmaLinux 8 kernel-rt +11 4.18.0-553.rt7.342.el8_10 ALSA-2024:2950
AlmaLinux 8 perf +24 4.18.0-553.el8_10 ALSA-2024:3138

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-553.el8_10 RXSA-2024:3138, RLSA-2024:3138
Rocky Linux 8 kernel-rt 4.18.0-553.rt7.342.el8_10 RLSA-2024:2950
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.44.1 SUSE-SU-2024:0160-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.29.1 SUSE-SU-2024:0141-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.44.1.150500.6.19.2 SUSE-SU-2024:0160-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
Show 12 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLE Real Time 15 SP4 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SLE Real Time 15 SP4 kernel-docs +4 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.44.1 SUSE-SU-2024:0160-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.44.1.150500.6.19.2 SUSE-SU-2024:0160-1
SLE Micro 5.5 kernel-rt 5.14.21-150500.13.30.1 SUSE-SU-2024:0115-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SLE Micro 5.4 kernel-rt 5.14.21-150400.15.65.1 SUSE-SU-2024:0129-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SLE Micro 5.3 kernel-rt 5.14.21-150400.15.65.1 SUSE-SU-2024:0129-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.44.1 SUSE-SU-2024:0160-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5-RT_Update_9 1-150500.11.3.1 SUSE-SU-2024:0115-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_9 1-150500.11.5.1 SUSE-SU-2024:0160-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4-RT_Update_17 1-150400.1.3.1 SUSE-SU-2024:0129-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_22 1-150400.9.3.1 SUSE-SU-2024:0156-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.30.1 SUSE-SU-2024:0115-1
SUSE Real Time Module 15 SP4 kernel-rt +3 5.14.21-150400.15.65.1 SUSE-SU-2024:0129-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SUSE Manager Server 4.3 kernel-source +2 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
SUSE Manager Proxy 4.3 kernel-source +1 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.44.1 SUSE-SU-2024:0160-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.29.1 SUSE-SU-2024:0141-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.44.1.150500.6.19.2 SUSE-SU-2024:0160-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.30.1 SUSE-SU-2024:0115-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.4 kernel-default 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
openSUSE Leap Micro 5.4 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
openSUSE Leap Micro 5.4 kernel-rt 5.14.21-150400.15.65.1 SUSE-SU-2024:0129-1
openSUSE Leap Micro 5.3 kernel-default 5.14.21-150400.24.103.1 SUSE-SU-2024:0156-1
openSUSE Leap Micro 5.3 kernel-default-base 5.14.21-150400.24.103.1.150400.24.48.1 SUSE-SU-2024:0156-1
openSUSE Leap Micro 5.3 kernel-rt 5.14.21-150400.15.65.1 SUSE-SU-2024:0129-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 kernel-livepatch-6.1.66-91.160 1.0-0.amzn2023 ALAS2023-2023-461
Amazon Linux 2023 perf +13 6.1.66-91.160.amzn2023 ALAS2023-2023-461

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.143.1-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 bpftool 7.3.0-427.13.1.el9_4 ELSA-2024-2394
Oracle Linux 9 rv +27 5.14.0-427.13.1.el9_4 ELSA-2024-2394
Oracle Linux 8 kernel-uek +12 5.15.0-203.146.5.1.el9uek ELSA-2024-12159
Oracle Linux 8 perf +19 4.18.0-553.el8_10 ELSA-2024-12159, ELSA-2024-3138

Advisories 28

References