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OpenAdvisories
Medium · 5.5 CVE-2022-48627 EUVD-2022-51322GHSA-73f5-wqmw-37vp

vt: fix memory overlapping when deleting chars in the buffer

Published Mar 2, 2024 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux 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-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 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-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.2 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-4.15 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-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.2 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-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.2 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-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-6.2 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-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-5.19 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: Debian Ecosystem: Ubuntu

Description

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

vt: fix memory overlapping when deleting chars in the buffer

A memory overlapping copy occurs when deleting a long line. This memory
overlapping copy can cause data corruption when scr_memcpyw is optimized
to memcpy because memcpy does not ensure its behavior if the destination
buffer overlaps with the source buffer. The line buffer is not always
broken, because the memcpy utilizes the hardware acceleration, whose
result is not deterministic.

Fix this problem by using replacing the scr_memcpyw with scr_memmovew.

Affected products

VendorProductAffectedFixed
Linux Linux 3.7 4.19.312

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 5.18.14-1 —
Debian 13 linux 5.18.14-1 —
Debian 12 linux 5.18.14-1 —
Debian 10 linux 4.19.316-1 DLA-3840-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-50.56 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1021.25 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1021.26 —
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1024.30.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1019.25 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1017.20 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1004.6 —
Ubuntu 22.04 LTS linux-ibm 5.15.0-1015.17 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1017.22 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1019.23 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1015.15 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1019.24 —
Ubuntu 22.04 LTS linux-raspi 5.15.0-1016.18 —
Ubuntu 22.04 LTS linux-riscv +22 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-189.209 USN-6896-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1128.138 USN-6896-5
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1021.25~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1133.140 USN-6896-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1021.26~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1088.95 USN-6896-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1132.141 USN-6896-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1021.28~20.04.1 —
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1095.99 USN-6896-1
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1005.7~20.04.1 —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-50.56~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1075.80 USN-6896-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1017.22~20.04.1 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1040.41 USN-6896-5
Ubuntu 20.04 LTS linux-kvm 5.4.0-1116.123 USN-6896-1
Ubuntu 20.04 LTS linux-oracle 5.4.0-1127.136 USN-6896-3
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1019.24~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1112.124 USN-6896-4
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1022.26~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1047.51 USN-6896-3
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 10 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1022.22 —
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 5.4.0-1128.138+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1133.140+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1102.112 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1132.141+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro 18.04 LTS linux +5 No fix yet —
Ubuntu Pro 18.04 LTS linux-aws-5.4 5.4.0-1128.138~18.04.1 USN-6896-5
Ubuntu Pro 18.04 LTS linux-azure-5.4 5.4.0-1133.140~18.04.1 USN-6896-1
Ubuntu Pro 18.04 LTS linux-gcp-5.4 5.4.0-1132.141~18.04.1 USN-6896-1
Ubuntu Pro 18.04 LTS linux-hwe-5.4 5.4.0-189.209~18.04.1 USN-6896-2
Ubuntu Pro 18.04 LTS linux-ibm-5.4 5.4.0-1075.80~18.04.1 USN-6896-1
Ubuntu Pro 18.04 LTS linux-oracle-5.4 5.4.0-1127.136~18.04.1 USN-6896-2
Ubuntu Pro 18.04 LTS linux-raspi-5.4 5.4.0-1112.124~18.04.1 USN-6896-4
Ubuntu Pro 16.04 LTS linux +7 No fix yet —
Ubuntu Pro 14.04 LTS linux +3 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 bpftool 7.3.0-427.26.1.el9_4 RHSA-2024:4583
RHEL 9 rv +64 5.14.0-427.26.1.el9_4 RHSA-2024:4583
RHEL 8 kernel-rt +12 4.18.0-553.5.1.rt7.346.el8_10 RHSA-2024:3627
RHEL 8 perf +26 4.18.0-553.5.1.el8_10 RHSA-2024:3618
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.2 EUS bpftool 7.0.0-284.73.1.el9_2 RHSA-2024:4533
RHEL 9.2 EUS kernel-rt +14 5.14.0-284.73.1.rt14.358.el9_2 RHSA-2024:4554
RHEL 9.2 EUS perf +47 5.14.0-284.73.1.el9_2 RHSA-2024:4533
RHEL 8.8 EUS perf +26 4.18.0-477.67.1.el8_8 RHSA-2024:5255

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 bpftool 7.3.0-427.26.1.el9_4 ALSA-2024:4583
AlmaLinux 9 rv +60 5.14.0-427.26.1.el9_4 ALSA-2024:4583
AlmaLinux 8 kernel-rt +11 4.18.0-553.5.1.rt7.346.el8_10 ALSA-2024:3627
AlmaLinux 8 perf +24 4.18.0-553.5.1.el8_10 ALSA-2024:3618

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 9 kernel 5.14.0-427.26.1.el9_4 RLSA-2024:4583
Rocky Linux 8 kernel 4.18.0-553.5.1.el8_10 RLSA-2024:3618
Rocky Linux 8 kernel-rt 4.18.0-553.5.1.rt7.346.el8_10 RLSA-2024:3627
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.37.1 SUSE-SU-2024:0855-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.59.1.150500.6.25.7 SUSE-SU-2024:1480-1
SLES 15 SP4 kernel-64kb +3 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
SLES 15 SP4 kernel-syms +2 5.14.21-150400.24.111.1 SUSE-SU-2024:0900-1
SLES 15 SP3 kernel-64kb +6 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.153.2.150300.18.90.2 SUSE-SU-2024:0857-1
SLES 15 SP3 kernel-syms 5.3.18-150300.59.153.1 SUSE-SU-2024:0857-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.183.1.150200.9.93.2 SUSE-SU-2024:0926-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.183.1 SUSE-SU-2024:0926-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.173.1 SUSE-SU-2024:0975-1
SLES 12 SP5 kernel-docs +3 4.12.14-122.201.1 SUSE-SU-2024:0925-1
SLES 12 SP5 kernel-obs-build 4.12.14-122.201.2 SUSE-SU-2024:0925-1
Show 22 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
SLES for SAP 15 SP4 kernel-docs +1 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
SLES for SAP 15 SP4 kernel-syms +2 5.14.21-150400.24.111.1 SUSE-SU-2024:0900-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.153.2.150300.18.90.2 SUSE-SU-2024:0857-1
SLES for SAP 15 SP3 kernel-docs +4 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SLES for SAP 15 SP3 kernel-syms 5.3.18-150300.59.153.1 SUSE-SU-2024:0857-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.183.1.150200.9.93.2 SUSE-SU-2024:0926-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.183.1 SUSE-SU-2024:0926-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.173.1 SUSE-SU-2024:0975-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.201.1 SUSE-SU-2024:0925-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.171.1 SUSE-SU-2024:0976-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.59.1.150500.6.25.7 SUSE-SU-2024:1480-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.47.1 SUSE-SU-2024:1466-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.71.1 SUSE-SU-2024:0977-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.71.1 SUSE-SU-2024:0977-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.153.2.150300.18.90.2 SUSE-SU-2024:0857-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.161.1 SUSE-SU-2024:0856-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.153.2.150300.18.90.2 SUSE-SU-2024:0857-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.161.1 SUSE-SU-2024:0856-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5-RT_Update_13 1-150500.11.3.1 SUSE-SU-2024:1466-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_12 1-150500.11.7.1 SUSE-SU-2024:1480-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4-RT_Update_19 1-150400.1.3.1 SUSE-SU-2024:0977-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_24 1-150400.9.3.1 SUSE-SU-2024:0900-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_42 1-150300.7.3.2 SUSE-SU-2024:0857-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.183.1 SUSE-SU-2024:0926-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_46 1-150200.5.3.2 SUSE-SU-2024:0926-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.201.1 SUSE-SU-2024:0925-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_54 1-8.7.1 SUSE-SU-2024:0925-1
SLE HPC 15 SP4 kernel-64kb +2 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
SLE HPC 15 SP4 kernel-syms +2 5.14.21-150400.24.111.1 SUSE-SU-2024:0900-1
SLE HPC 15 SP3 kernel-64kb +5 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.153.2.150300.18.90.2 SUSE-SU-2024:0857-1
SLE HPC 15 SP3 kernel-syms 5.3.18-150300.59.153.1 SUSE-SU-2024:0857-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.183.1.150200.9.93.2 SUSE-SU-2024:0926-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.183.1 SUSE-SU-2024:0926-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.47.1 SUSE-SU-2024:1466-1
SUSE Manager Server 4.3 kernel-default +1 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-2, SUSE-SU-2024:0900-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-2, SUSE-SU-2024:0900-1
SUSE Manager Server 4.3 kernel-syms +1 5.14.21-150400.24.111.1 SUSE-SU-2024:0900-2, SUSE-SU-2024:0900-1
SUSE Manager Proxy 4.3 kernel-default 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-2, SUSE-SU-2024:0900-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-2, SUSE-SU-2024:0900-1
SUSE Manager Proxy 4.3 kernel-syms +1 5.14.21-150400.24.111.1 SUSE-SU-2024:0900-2, SUSE-SU-2024:0900-1
SUSE Enterprise Storage 7.1 kernel-64kb +5 5.3.18-150300.59.153.2 SUSE-SU-2024:0857-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.153.2.150300.18.90.2 SUSE-SU-2024:0857-1
SUSE Enterprise Storage 7.1 kernel-syms 5.3.18-150300.59.153.1 SUSE-SU-2024:0857-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.59.1 SUSE-SU-2024:1480-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.37.1 SUSE-SU-2024:0855-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.59.1.150500.6.25.7 SUSE-SU-2024:1480-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.47.1 SUSE-SU-2024:1466-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.4 kernel-default 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
openSUSE Leap Micro 5.4 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
openSUSE Leap Micro 5.4 kernel-rt 5.14.21-150400.15.71.1 SUSE-SU-2024:0977-1
openSUSE Leap Micro 5.3 kernel-default 5.14.21-150400.24.111.2 SUSE-SU-2024:0900-1
openSUSE Leap Micro 5.3 kernel-default-base 5.14.21-150400.24.111.2.150400.24.52.1 SUSE-SU-2024:0900-1
openSUSE Leap Micro 5.3 kernel-rt 5.14.21-150400.15.71.1 SUSE-SU-2024:0977-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.345-262.561 1.0-0.amzn2 ALAS2-2024-2615
Amazon Linux 2 perf +8 4.14.345-262.561.amzn2 ALAS2-2024-2615

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 bpftool 7.3.0-427.26.1.el9_4 ELSA-2024-4583
Oracle Linux 9 rv +27 5.14.0-427.26.1.el9_4 ELSA-2024-4583
Oracle Linux 8 perf +19 4.18.0-553.5.1.el8_10 ELSA-2024-3618
Oracle Linux 7 kernel-uek +5 4.1.12-124.89.4.el7uek ELSA-2024-12606

Advisories 35

References