Out-of-bounds write in Linux kernel - CVE-2026-43047

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Main Vulnerability Database Vulnerabilities #VU128858

Out-of-bounds write in Linux kernel - CVE-2026-43047

Published: May 2, 2026


Vulnerability identifier: #VU128858
CSH Severity: Medium
CVSS v4: 5.2 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-43047
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows an attacker with physical access to cause a denial of service or perform an out-of-bounds write.

The vulnerability exists due to an out-of-bounds write in the HID multitouch feature report handling when processing a device response to a feature request. An attacker with physical access can provide a malicious device that responds with a mismatched report ID to cause a denial of service or perform an out-of-bounds write.

The issue is triggered when a device returns a different report ID than the one originally requested.


Affected software

Linux kernel
Debian Linux
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Development Tools Module
SUSE Real Time Module
Basesystem Module
openEuler
Ubuntu
kgraft-patch-4_12_14-122_320-default
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource
kernel-livepatch-6_4_0-150700_7_67-rt
kernel-livepatch-SLE15-SP7_Update_19-debugsource
kernel-livepatch-6_4_0-150700_53_73-default
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo
kernel-default-devel
gfs2-kmp-default
kernel-default-base
kernel-default-debugsource
kernel-default-base-debuginfo
cluster-md-kmp-default-debuginfo
dlm-kmp-default
kernel-default-debuginfo
dlm-kmp-default-debuginfo
ocfs2-kmp-default
kernel-default-devel-debuginfo
kernel-default
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
kernel-syms
ocfs2-kmp-default-debuginfo
kernel-source
kernel-macros
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-man
kernel-devel
kernel-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-debugsource
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
kernel-headers
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-ibm-5.15 (Ubuntu package)
linux-intel-iotg (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure-fde (Ubuntu package)
linux (Debian package)
kernel-source-rt
kernel-rt
kernel-devel-rt
kernel-rt-debuginfo
dlm-kmp-rt
kernel-rt-debugsource
cluster-md-kmp-rt
kernel-rt-devel-debuginfo
ocfs2-kmp-rt
gfs2-kmp-rt
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-syms-rt
kernel-rt-devel
kernel-docs
kernel-default-extra
kernel-64kb
kernel-obs-build
kernel-obs-build-debugsource
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-default-extra-debuginfo
kernel-azure-debugsource
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-azure
kernel-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-azure-devel
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-64kb-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-extra-modules
linux-fips (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oracle-6.8 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-azure-fde-6.8 (Ubuntu package)
linux-gcp-fips (Ubuntu package)

How to mitigate CVE-2026-43047

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kgraft-patch-4_12_14-122_320-default - update to 1-8.3.1
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource - update to 1-150700.1.5.1
kernel-livepatch-6_4_0-150700_7_67-rt - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7_Update_19-debugsource - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_73-default - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo - update to 1-150700.15.3.4
kernel-default-devel - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
gfs2-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-default-base - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2.150700.17.41.4
kernel-default-debugsource - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-default-base-debuginfo - update to 4.12.14-122.320.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
dlm-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
ocfs2-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
cluster-md-kmp-default - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-syms - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.2
kernel-source - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.1
kernel-macros - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.1
kernel-default-kgraft-devel - update to 4.12.14-122.320.1
kernel-default-kgraft - update to 4.12.14-122.320.1
kernel-default-man - update to 4.12.14-122.320.1
kernel-devel - addressed in versions 4.12.14-122.320.1, 6.4.0-150700.53.73.1
kernel-debuginfo - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
bpftool - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
bpftool-debuginfo - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-debugsource - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-devel - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-tools - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-tools-debuginfo - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-source - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-tools-devel - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
perf - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
perf-debuginfo - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
python2-perf - update to 4.19.90-2605.4.0.0373
python2-perf-debuginfo - update to 4.19.90-2605.4.0.0373
python3-perf - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
python3-perf-debuginfo - addressed in versions 4.19.90-2605.4.0.0373, 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
kernel-headers - addressed in versions 5.10.0-315.0.0.218, 6.6.0-145.0.12.138, 6.6.0-145.1.12.150, 6.6.0-145.3.12.142
linux (Ubuntu package) - addressed in versions 5.15.0.184.155, 5.15.0-184.194, 5.15.0-184.194~20.04.1, 5.15.0.186.166, 5.15.0-186.196, 5.15.0-186.196~20.04.1, 5.15.0.1075.78, 5.15.0-1075.79, 5.15.0.1095.94, 5.15.0-1095.103, 5.15.0.1104.100, 5.15.0-1104.109, 5.15.0.1108.107, 5.15.0-1108.114, 5.15.0.1111.115, 5.15.0-1111.120+fips1, 5.15.0.1112.102, 5.15.0.1112.109, 5.15.0-1112.122, 5.15.0-1112.122+fips1, 6.8.0-136.136, 6.8.0-1046.50, 6.8.0-1059.67, 6.8.0-1064.72, 6.8.0-1064.72~22.04.1, 6.8.1-1056.57, 6.8.1-1056.57~22.04.2
linux-aws (Ubuntu package) - addressed in versions 5.15.0.186.109, 5.15.0-186.196+fips1, 5.15.0.1106.103, 5.15.0-1106.110, 5.15.0.1107.107, 5.15.0-1107.108, 5.15.0.1112.108, 5.15.0.1112.115, 5.15.0-1112.119, 5.15.0-1112.119+fips1, 5.15.0-1112.119~20.04.1, 6.8.0-1061.64+1
linux-nvidia-tegra (Ubuntu package) - addressed in versions 5.15.0-1053.53, 5.15.0.1053.55, 5.15.0.1064.64, 5.15.0-1064.66
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1064.66~20.04.1
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1104.106, 5.15.0.1104.108, 5.15.0-1107.113~20.04.1
linux-ibm-5.15 (Ubuntu package) - update to 5.15.0-1106.110~20.04.1
linux-intel-iotg (Ubuntu package) - addressed in versions 5.15.0.1107.106, 5.15.0-1107.113
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1109.105, 5.15.0-1109.115, 5.15.0.1117.115, 5.15.0-1117.126, 6.8.0-1063.71, 6.8.0-1063.71~22.04.1
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0-1109.115~20.04.1, 5.15.0-1117.126~20.04.1, 5.15.0-1117.126~20.04.2
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0.1117.102, 5.15.0-1117.126+fips1, 6.8.0-1063.71+fips2
linux-azure-fde (Ubuntu package) - addressed in versions 5.15.0-1117.126, 6.8.0-1062.69
linux (Debian package) - update to 6.1.170-1
kernel-source-rt - update to 6.4.0-150700.7.67.1
kernel-rt - update to 6.4.0-150700.7.67.1
kernel-devel-rt - update to 6.4.0-150700.7.67.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.67.1
dlm-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-rt-debugsource - update to 6.4.0-150700.7.67.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt - update to 6.4.0-150700.7.67.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
kernel-syms-rt - update to 6.4.0-150700.7.67.1
kernel-rt-devel - update to 6.4.0-150700.7.67.1
kernel-docs - update to 6.4.0-150700.53.73.1
kernel-default-extra - update to 6.4.0-150700.53.73.2
kernel-64kb - update to 6.4.0-150700.53.73.2
kernel-obs-build - update to 6.4.0-150700.53.73.2
kernel-obs-build-debugsource - update to 6.4.0-150700.53.73.2
reiserfs-kmp-default - update to 6.4.0-150700.53.73.2
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-debugsource - update to 6.4.0-150700.53.73.2
kernel-default-livepatch-devel - update to 6.4.0-150700.53.73.2
kernel-default-livepatch - update to 6.4.0-150700.53.73.2
kernel-azure - update to 6.4.0-150700.53.73.2
kernel-azure-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-devel - update to 6.4.0-150700.53.73.2
kernel-64kb-debugsource - update to 6.4.0-150700.53.73.2
kernel-64kb-devel - update to 6.4.0-150700.53.73.2
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-64kb-debuginfo - update to 6.4.0-150700.53.73.2
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.73.2
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.73.2
kernel-zfcpdump - update to 6.4.0-150700.53.73.2
kernel-extra-modules - update to 6.6.0-145.3.12.142
linux-fips (Ubuntu package) - addressed in versions 6.8.0-136.136+fips2, 6.8.0-136.136.2, 6.8.0-136.136.2~22.04.1, 6.8.0-1058.61
linux-hwe-6.8 (Ubuntu package) - update to 6.8.0-136.136~22.04.1
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-1030.31, 6.8.0-1033.34, 6.8.0-1061.62, 6.8.0-1061.62~22.04.1
linux-oracle-6.8 (Ubuntu package) - update to 6.8.0-1058.61~22.04.1
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1059.62, 6.8.0-1059.62.1, 6.8.0-1059.62~22.04.1
linux-aws-6.8 (Ubuntu package) - addressed in versions 6.8.0-1061.64+fips1, 6.8.0-1061.64~22.04.1
linux-azure-fde-6.8 (Ubuntu package) - update to 6.8.0-1062.69~22.04.1
linux-gcp-fips (Ubuntu package) - update to 6.8.0-1064.72+fips1

External References

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