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Unscored CVE-2022-1012 EUVD-2022-24362

A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This fla…

Published Aug 5, 2022 · Updated Oct 14, 2026 · Assigned by redhat

Package: kernel Package: linux Package: linux 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-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge Package: linux-azure-fde-5.15 Package: linux-azure-fips Package: linux-bluefield Package: linux-dell300x Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 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-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lts-xenial Package: linux-nvidia 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-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-5.4 Package: linux-oracle-5.8 Package: linux-raspi Package: linux-raspi-5.4 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-5.8 Package: linux-snapdragon Package: linux-vmware Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.

Affected products

VendorProductAffectedFixed
— Kernel Linux kernel version prior to 5.18-rc6 —

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 5.17.11-1 —
Debian 13 linux 5.17.11-1 —
Debian 12 linux 5.17.11-1 —
Debian 11 linux 5.10.120-1 DSA-5161-1
Debian 10 linux 4.19.249-2 DSA-5173-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Debian 9 linux 4.9.320-2 DLA-3065-1
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS linux-vmware No fix yet —
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux 5.15.0-47.51 USN-5594-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1019.23 USN-5594-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1019.24 USN-5594-1
Ubuntu 22.04 LTS linux-gcp 5.15.0-1017.23 USN-5594-1
Ubuntu 22.04 LTS linux-gke 5.15.0-1015.18 USN-5594-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1002.4 USN-5594-1
Ubuntu 22.04 LTS linux-ibm 5.15.0-1013.15 USN-5594-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1013.17 USN-5616-1
Ubuntu 22.04 LTS linux-kvm 5.15.0-1017.21 USN-5594-1
Ubuntu 22.04 LTS linux-lowlatency 5.15.0-47.53 USN-5594-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1007.7 —
Ubuntu 22.04 LTS linux-oem-5.17 5.17.0-1011.12 USN-5471-1
Ubuntu 22.04 LTS linux-oem-6.0 +2 No fix yet —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1017.22 USN-5599-1
Ubuntu 22.04 LTS linux-raspi 5.15.0-1014.16 USN-5602-1
Ubuntu 22.04 LTS linux-riscv 5.15.0-1018.21 —
Ubuntu 20.04 LTS linux 5.4.0-126.142 USN-5622-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1085.92 USN-5622-1
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1019.23~20.04.1 USN-5594-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1091.96 USN-5622-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1019.24~20.04.1 USN-5594-1
Ubuntu 20.04 LTS linux-azure-fde 5.4.0-1091.96+cvm1.1 USN-5639-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1046.51 USN-5622-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1089.97 USN-5647-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1017.23~20.04.2 USN-5594-1
Ubuntu 20.04 LTS linux-gke 5.4.0-1083.89 USN-5654-1
Ubuntu 20.04 LTS linux-gke-5.15 5.15.0-1015.18~20.04.1 USN-5594-1
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1053.56 USN-5622-1
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-48.54~20.04.1 USN-5623-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1033.37 USN-5622-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1015.20~20.04.2 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1004.6 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1075.80 USN-5622-1
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1044.49 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1083.91 USN-5622-1
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1017.22~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1070.80 USN-5622-1
Ubuntu 20.04 LTS linux-riscv +22 No fix yet —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1018.21~20.04.1 —
Ubuntu 18.04 LTS linux 4.15.0-194.205 USN-5669-1
Ubuntu 18.04 LTS linux-aws 4.15.0-1142.154 USN-5678-1
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1085.92~18.04.1 USN-5622-1
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1153.168 USN-5687-1
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1091.96~18.04.1 USN-5622-1
Ubuntu 18.04 LTS linux-dell300x 4.15.0-1054.59 USN-5669-1
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1137.153 USN-5678-1
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1089.97~18.04.1 USN-5660-1
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-126.142~18.04.1 USN-5622-1
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1033.37~18.04.1 USN-5622-1
Ubuntu 18.04 LTS linux-kvm 4.15.0-1128.133 USN-5669-1
Ubuntu 18.04 LTS linux-oracle 4.15.0-1107.118 USN-5669-1
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1083.91~18.04.1 USN-5622-1
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1070.80~18.04.1 USN-5630-1
Ubuntu 18.04 LTS linux-raspi2 4.15.0-1120.128 USN-5669-1
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1138.148 USN-5669-1
Show 11 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-realtime 5.15.0-1020.20 —
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1085.92+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1091.96+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1061.69 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1089.97+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2081.87 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2062.68 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1099.110 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2047.52 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro 20.04 LTS linux-azure-fde-5.15 5.15.0-1114.123~20.04.1 —
Ubuntu Pro 16.04 LTS linux +2 No fix yet —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1142.154~16.04.1 USN-5679-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1153.168~16.04.1 USN-5684-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1137.153~16.04.1 USN-5695-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-194.205~16.04.1 USN-5669-2
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1107.118~16.04.1 USN-5669-2
Ubuntu Pro 14.04 LTS linux +2 No fix yet —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1153.168~14.04.1 USN-5684-1
ReleasePackageFixed inAdvisory
RHEL 9 kernel-rt +12 5.14.0-70.17.1.rt21.89.el9_0 RHSA-2022:5267
RHEL 9 kpatch-patch-5_14_0-70_13_1 1-1.el9_0 RHSA-2022:5214
RHEL 9 perf +29 5.14.0-70.17.1.el9_0 RHSA-2022:5249
RHEL 8 kernel-rt +12 4.18.0-372.19.1.rt7.176.el8_6 RHSA-2022:5834
RHEL 8 perf +26 4.18.0-372.19.1.el8_6 RHSA-2022:5819
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhev Hypervisor 4 perf +2 4.18.0-372.19.1.el8_6 RHSA-2022:5819
Red Hat Rhev Hypervisor 4 redhat-virtualization-host +1 4.5.2-202209140405_8.6 RHSA-2022:6551
RHEL 8.4 EUS kernel-rt +12 4.18.0-305.57.1.rt7.129.el8_4 RHSA-2022:5633
RHEL 8.4 EUS perf +26 4.18.0-305.57.1.el8_4 RHSA-2022:5626
RHEL 8.2 EUS kernel-rt +12 4.18.0-193.87.1.rt13.137.el8_2 RHSA-2022:5224
RHEL 8.2 EUS perf +26 4.18.0-193.87.1.el8_2 RHSA-2022:5220
RHEL 8.1 E4S perf +18 4.18.0-147.70.1.el8_1 RHSA-2022:5636

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 kernel-rt +11 5.14.0-70.17.1.rt21.89.el9_0 ALSA-2022:5267
AlmaLinux 9 perf +27 5.14.0-70.17.1.el9_0 ALSA-2022:5249
AlmaLinux 8 kernel-rt +11 4.18.0-372.19.1.rt7.176.el8_6 ALSA-2022:5834
AlmaLinux 8 perf +19 4.18.0-372.19.1.el8_6 ALSA-2022:5819

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-372.19.1.el8_6 RLSA-2022:5819
Rocky Linux 8 kernel-rt 4.18.0-372.19.1.rt7.176.el8_6 RLSA-2022:5834
ReleasePackageFixed inAdvisory
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.11.1 SUSE-SU-2022:2520-1
SLES 15 SP4 kernel-azure +2 5.14.21-150400.14.7.1 SUSE-SU-2022:2615-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.11.1.150400.24.3.6 SUSE-SU-2022:2520-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.87.1 SUSE-SU-2022:2549-1
SLES 15 SP3 kernel-azure +2 5.3.18-150300.38.62.1 SUSE-SU-2022:2172-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.87.1.150300.18.50.2 SUSE-SU-2022:2549-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLES 15 SP1 kernel-docs +5 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.103.1 SUSE-SU-2022:2377-1
SLES 12 SP5 kernel-docs +4 4.12.14-122.127.1 SUSE-SU-2022:2382-1
Show 19 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLES for SAP 15 SP1 kernel-docs +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.103.1 SUSE-SU-2022:2377-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.127.1 SUSE-SU-2022:2382-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.94.1 SUSE-SU-2022:2629-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.87.1 SUSE-SU-2022:2549-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.87.1.150300.18.50.2 SUSE-SU-2022:2549-1
SLE Micro 5.2 kernel-rt 5.3.18-150300.96.1 SUSE-SU-2022:2424-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.87.1 SUSE-SU-2022:2549-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.87.1.150300.18.50.2 SUSE-SU-2022:2549-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.96.1 SUSE-SU-2022:2424-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.11.1 SUSE-SU-2022:2520-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_1 1-150400.9.5.3 SUSE-SU-2022:2520-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.87.1 SUSE-SU-2022:2549-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_22 1-150300.7.5.1 SUSE-SU-2022:2549-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_30 1-150200.5.3.1 SUSE-SU-2022:3450-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_34 1-150100.3.3.1 SUSE-SU-2022:3408-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.127.1 SUSE-SU-2022:2382-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_33 1-8.3.1 SUSE-SU-2022:2382-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLE HPC 15 SP1 kernel-docs +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.96.1 SUSE-SU-2022:2424-1
SUSE Manager Server 4.1 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Manager Server 4.1 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Manager Retail Branch Server 4.1 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Manager Retail Branch Server 4.1 kernel-docs +4 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Manager Proxy 4.1 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Manager Proxy 4.1 kernel-docs +4 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Enterprise Storage 7 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Enterprise Storage 6 kernel-docs +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.4 dtb-aarch64 5.3.18-150300.59.87.1 SUSE-SU-2022:2549-1, SUSE-SU-2022:2520-1
openSUSE Leap 15.4 kernel-64kb +5 5.14.21-150400.24.11.1 SUSE-SU-2022:2520-1
openSUSE Leap 15.4 kernel-azure +2 5.14.21-150400.14.7.1 SUSE-SU-2022:2615-1
openSUSE Leap 15.4 kernel-debug +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1, SUSE-SU-2022:2520-1
openSUSE Leap 15.4 kernel-default-base 5.14.21-150400.24.11.1.150400.24.3.6 SUSE-SU-2022:2520-1
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-150300.59.87.1 SUSE-SU-2022:2549-1
openSUSE Leap 15.3 kernel-azure +2 5.3.18-150300.38.62.1 SUSE-SU-2022:2172-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1, SUSE-SU-2022:2549-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-150300.59.87.1.150300.18.50.2 SUSE-SU-2022:2549-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.2 kernel-default 5.3.18-150300.59.87.1 openSUSE-SU-2022:2549-1
openSUSE Leap Micro 5.2 kernel-default-base 5.3.18-150300.59.87.1.150300.18.50.2 openSUSE-SU-2022:2549-1
openSUSE Leap Micro 5.2 kernel-rt 5.3.18-150300.96.1 SUSE-SU-2022:2424-2

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.285-215.501 1.0-0.amzn2 ALAS2-2022-1813
Amazon Linux 2 perf +8 4.14.285-215.501.amzn2 ALAS2-2022-1813

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.67.1-4 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 perf +21 5.14.0-70.17.1.0.1.el9_0 ELSA-2022-5249
Oracle Linux 8 perf +19 4.18.0-372.19.1.0.1.el8_6 ELSA-2022-5819

Advisories 50

References