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OpenAdvisories
Medium · 6.9 CVE-2022-2503 EUVD-2022-34761GHSA-j7xr-c5x7-xr2p

Linux Kernel LoadPin bypass via dm-verity table reload

Published Aug 12, 2022 · Updated Oct 14, 2026 · Assigned by Google

Vendor: Linux kernel Product: Linux kernel 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-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-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 Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5

Affected products

VendorProductAffectedFixed
Linux Kernel Linux Kernel unspecified – < 4caae58406f8ceb741603eee460d79bacca9b1b5 4caae58406f8ceb741603eee460d79bacca9b1b5

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 5.18.2-1 —
Debian 13 linux 5.18.2-1 —
Debian 12 linux 5.18.2-1 —
ReleasePackageFixed inAdvisory
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 5.15.0-1015.20 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 5.17.0-1013.14 —
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-realtime +1 No fix yet —
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 4.15.0-191.202 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1139.150 —
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 4.15.0-1149.164 —
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 4.15.0-1051.56 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1134.150 —
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 4.15.0-1125.130 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1104.115 —
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 4.15.0-1117.125 —
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1135.145 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
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 4.15.0-2078.83 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2059.65 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1096.107 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2043.48 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1088.95 —
Ubuntu Pro 16.04 LTS linux 4.4.0-239.273 USN-6014-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1155.170 USN-6001-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1139.150~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1149.164~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1134.150~16.04.2 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-191.202~16.04.1 —
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1118.128 USN-6014-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1104.115~16.04.1 —
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1117.123 USN-6013-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1149.164~14.04.1 —
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-239.273~14.04.1 USN-6014-1
ReleasePackageFixed inAdvisory
RHEL 9 kernel-rt +12 5.14.0-162.6.1.rt21.168.el9_1 RHSA-2022:7933
RHEL 9 perf +29 5.14.0-162.6.1.el9_1 RHSA-2022:8267
RHEL 8 kernel-rt +12 4.18.0-425.3.1.rt7.213.el8 RHSA-2022:7444
RHEL 8 perf +26 4.18.0-425.3.1.el8 RHSA-2022:7683
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhev Hypervisor 4 perf +2 4.18.0-372.75.1.el8_6 RHSA-2023:5627
RHEL 8.6 EUS perf +26 4.18.0-372.75.1.el8_6 RHSA-2023:5627
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
SLES 15 SP3 kernel-azure +2 5.3.18-150300.38.80.1 SUSE-SU-2022:3609-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.98.1.150300.18.56.3 SUSE-SU-2022:3775-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SLES 15 SP1 kernel-docs +5 4.12.14-150100.197.126.1 SUSE-SU-2022:3693-1
SLES 15 kernel-docs +6 4.12.14-150000.150.104.1 SUSE-SU-2022:3688-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.112.1 SUSE-SU-2022:3584-1
SLES 12 SP5 kernel-docs +4 4.12.14-122.136.1 SUSE-SU-2022:3587-1
Show 28 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP4 kernel-syms +2 4.12.14-95.111.1 SUSE-SU-2022:3586-1
SLES 12 SP3 kernel-syms +2 4.4.180-94.177.1 SUSE-SU-2022:3599-1
SLES 12 SP2 kernel-syms +2 4.4.121-92.191.1 SUSE-SU-2022:3779-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SLES for SAP 15 SP1 kernel-docs +4 4.12.14-150100.197.126.1 SUSE-SU-2022:3693-1
SLES for SAP 15 kernel-docs +5 4.12.14-150000.150.104.1 SUSE-SU-2022:3688-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.112.1 SUSE-SU-2022:3584-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.136.1 SUSE-SU-2022:3587-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.111.1 SUSE-SU-2022:3586-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.103.1 SUSE-SU-2022:3810-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.98.1.150300.18.56.3 SUSE-SU-2022:3775-1
SLE Micro 5.2 kernel-rt 5.3.18-150300.106.1 SUSE-SU-2022:3809-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.98.1.150300.18.56.3 SUSE-SU-2022:3775-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.106.1 SUSE-SU-2022:3809-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_25 1-150300.7.5.1 SUSE-SU-2022:3775-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_31 1-150200.5.3.2 SUSE-SU-2022:3704-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-150100.197.126.1 SUSE-SU-2022:3693-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_35 1-150100.3.3.1 SUSE-SU-2022:3693-1
SLE Live Patching 15 kernel-default 4.12.14-150000.150.104.1 SUSE-SU-2022:3688-1
SLE Live Patching 15 kernel-livepatch-SLE15_Update_34 1-150000.1.3.1 SUSE-SU-2022:3688-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.136.1 SUSE-SU-2022:3587-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_36 1-8.3.1 SUSE-SU-2022:3587-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.111.1 SUSE-SU-2022:3586-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_31 1-6.3.1 SUSE-SU-2022:3586-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SLE HPC 15 SP1 kernel-docs +4 4.12.14-150100.197.126.1 SUSE-SU-2022:3693-1
SLE HPC 15 kernel-docs +5 4.12.14-150000.150.104.1 SUSE-SU-2022:3688-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.106.1 SUSE-SU-2022:3809-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.111.1 SUSE-SU-2022:3586-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.111.1 SUSE-SU-2022:3586-1
SUSE Manager Server 4.1 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SUSE Manager Server 4.1 kernel-docs +5 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SUSE Manager Retail Branch Server 4.1 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SUSE Manager Retail Branch Server 4.1 kernel-docs +4 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SUSE Manager Proxy 4.1 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SUSE Manager Proxy 4.1 kernel-docs +4 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-150200.24.134.1.150200.9.63.2 SUSE-SU-2022:3704-1
SUSE Enterprise Storage 7 kernel-docs +5 5.3.18-150200.24.134.1 SUSE-SU-2022:3704-1
SUSE Enterprise Storage 6 kernel-docs +4 4.12.14-150100.197.126.1 SUSE-SU-2022:3693-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.4 dtb-aarch64 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
openSUSE Leap 15.4 kernel-debug +4 4.12.14-150100.197.126.1 SUSE-SU-2022:3693-1
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
openSUSE Leap 15.3 kernel-azure +2 5.3.18-150300.38.80.1 SUSE-SU-2022:3609-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-150100.197.126.1 SUSE-SU-2022:3775-1, SUSE-SU-2022:3693-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-150300.59.98.1.150300.18.56.3 SUSE-SU-2022:3775-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.2 kernel-default 5.3.18-150300.59.98.1 SUSE-SU-2022:3775-1
openSUSE Leap Micro 5.2 kernel-default-base 5.3.18-150300.59.98.1.150300.18.56.3 SUSE-SU-2022:3775-1
openSUSE Leap Micro 5.2 kernel-rt 5.3.18-150300.106.1 SUSE-SU-2022:3809-1

Azure Linux

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

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 7 kernel-uek +5 4.1.12-124.67.3.el7uek ELSA-2022-9852

Advisories 37

References