Buffer overflow in Linux kernel - CVE-2024-43856

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Main Vulnerability Database Vulnerabilities #VU96191

Buffer overflow in Linux kernel - CVE-2024-43856

Published: August 19, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU96191
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-43856
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available
Affected software:
Linux kernel
Oracle Linux
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Desktop 15
openSUSE Leap Micro
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
Ubuntu
Legacy Module
Development Tools Module
Basesystem Module
Public Cloud Module
SUSE Real Time Module
openSUSE Leap
openEuler
SmartFabric Storage Software
RecoverPoint for Virtual Machines
IBM DataPower Gateway
linux-image-aws (Ubuntu package)
linux-image-4.15.0-1176-aws (Ubuntu package)
linux-image-4.15.0-1169-gcp (Ubuntu package)
linux-image-4.15.0-1159-kvm (Ubuntu package)
linux-image-4.15.0-1138-oracle (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1119-raspi (Ubuntu package)
linux-image-4.4.0-1140-kvm (Ubuntu package)
linux-image-4.4.0-1177-aws (Ubuntu package)
linux-image-4.15.0-232-generic (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-5.4.0-1082-ibm (Ubuntu package)
linux-image-5.4.0-1139-gcp (Ubuntu package)
linux-image-5.4.0-200-generic (Ubuntu package)
linux-image-5.4.0-200-lowlatency (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-oracle-lts-18.04 (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-4.15.0-232-lowlatency (Ubuntu package)
linux-image-5.4.0-1140-azure (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-4.4.0-262-lowlatency (Ubuntu package)
linux-image-4.15.0-1184-azure (Ubuntu package)
linux-image-4.4.0-262-generic (Ubuntu package)
linux-image-4.4.0-1139-aws (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-5.4.0-1135-aws (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-5.4.0-1134-oracle (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
kgraft-patch-4_12_14-122_228-default
kernel-livepatch-5_14_21-150500_55_80-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_19-debugsource
kernel-livepatch-5_14_21-150500_55_80-default
kernel-livepatch-SLE15-SP5-RT_Update_19-debugsource
kernel-livepatch-5_14_21-150500_13_67-rt
kernel-livepatch-5_14_21-150500_13_67-rt-debuginfo
kernel-livepatch-6_4_0-150600_10_8-rt-debuginfo
kernel-livepatch-6_4_0-150600_10_8-rt
kernel-livepatch-SLE15-SP6-RT_Update_2-debugsource
kernel-livepatch-6_4_0-150600_23_22-default-debuginfo
kernel-livepatch-SLE15-SP6_Update_4-debugsource
kernel-livepatch-6_4_0-150600_23_22-default
kernel-rt-debuginfo
kernel-rt_debug-devel
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-base-debuginfo
kernel-rt-devel
dlm-kmp-rt
cluster-md-kmp-rt
kernel-rt_debug-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-base
kernel-syms-rt
kernel-rt_debug-devel-debuginfo
gfs2-kmp-rt
kernel-rt-debugsource
cluster-md-kmp-rt-debuginfo
kernel-rt_debug
kernel-rt
kernel-source-rt
kernel-devel-rt
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-source-azure
kernel-devel-azure
kernel-azure-base-debuginfo
kernel-syms-azure
kernel-azure-debugsource
kernel-azure-debuginfo
kernel-azure-devel
kernel-azure-base
kernel-azure
kernel-default-man
kernel-default-debugsource
dlm-kmp-default
cluster-md-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-base-debuginfo
dlm-kmp-default-debuginfo
gfs2-kmp-default
kernel-default
kernel-devel
kernel-macros
kernel-source
kernel-default-devel-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-extra
kernel-default-extra-debuginfo
kernel-syms
kernel-default-base
kernel-default-debuginfo
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-devel
kernel-obs-build
kernel-obs-build-debugsource
kernel-docs
bpftool
kernel
kernel-debuginfo
kernel-debugsource
kernel-tools
bpftool-debuginfo
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-200-generic-lpae (Ubuntu package)
linux-image-5.4.0-1044-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1054-xilinx-zynqmp (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1094-bluefield (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.4.0-1102-gkeop (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-5.4.0-1123-kvm (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1139-azure (Ubuntu package)
kernel-headers
kernel-rt_debug-vdso-debuginfo
kernel-rt-optional
kernel-rt_debug-vdso
kernel-rt-vdso
kernel-rt-optional-debuginfo
kernel-rt_debug-livepatch-devel
reiserfs-kmp-rt-debuginfo
kernel-rt-extra
kernel-rt-livepatch
reiserfs-kmp-rt
kselftests-kmp-rt-debuginfo
kernel-rt-livepatch-devel
kselftests-kmp-rt
kernel-rt-extra-debuginfo
kernel-rt-vdso-debuginfo
kselftests-kmp-azure-debuginfo
dlm-kmp-azure-debuginfo
ocfs2-kmp-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
gfs2-kmp-azure
kernel-azure-optional-debuginfo
ocfs2-kmp-azure-debuginfo
dlm-kmp-azure
kernel-azure-extra
kernel-azure-optional
kernel-azure-devel-debuginfo
reiserfs-kmp-azure
kernel-azure-extra-debuginfo
cluster-md-kmp-azure-debuginfo
reiserfs-kmp-azure-debuginfo
kselftests-kmp-azure
kernel-azure-livepatch-devel
cluster-md-kmp-azure
gfs2-kmp-azure-debuginfo
dtb-renesas
dtb-xilinx
dtb-amd
kernel-obs-qa
dtb-nvidia
dtb-amlogic
dtb-qcom
dtb-rockchip
dtb-exynos
dtb-lg
dtb-altera
dtb-amazon
dtb-aarch64
dtb-arm
dtb-mediatek
dtb-apple
dtb-apm
dtb-cavium
dtb-marvell
dtb-freescale
dtb-sprd
dtb-socionext
dtb-hisilicon
dtb-broadcom
dtb-allwinner
kernel-debug-debugsource
kernel-debug-devel-debuginfo
kernel-default-vdso
kernel-debug-livepatch-devel
kernel-debug-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-debug-vdso
kernel-kvmsmall-debugsource
kernel-debug-devel
kernel-debug
kernel-source-vanilla
kernel-docs-html
kernel-zfcpdump-debuginfo
kernel-default-optional
kernel-zfcpdump-debugsource
reiserfs-kmp-default
kernel-zfcpdump
reiserfs-kmp-default-debuginfo
kernel-default-livepatch-devel
kselftests-kmp-default
kernel-default-livepatch
kernel-default-optional-debuginfo
kernel-debug-vdso-debuginfo
kselftests-kmp-default-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall
kernel-kvmsmall-livepatch-devel
kernel-default-vdso-debuginfo
dlm-kmp-64kb
kselftests-kmp-64kb
kernel-64kb-devel-debuginfo
ocfs2-kmp-64kb
gfs2-kmp-64kb
kselftests-kmp-64kb-debuginfo
cluster-md-kmp-64kb
reiserfs-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
kernel-64kb-devel
kernel-64kb-optional
reiserfs-kmp-64kb
cluster-md-kmp-64kb-debuginfo
kernel-64kb-extra
ocfs2-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
kernel-64kb-livepatch-devel
kernel-64kb-extra-debuginfo
kernel-64kb
kernel-64kb-optional-debuginfo
kernel-64kb-debugsource
kernel-64kb-debuginfo
kernel-default-base-rebuild
linux-image-lowlatency-64k (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-5.15.0-125-generic (Ubuntu package)
linux-image-5.15.0-125-lowlatency (Ubuntu package)
linux-image-5.15.0-125-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-125-generic-64k (Ubuntu package)
linux-image-5.15.0-125-generic-lpae (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-5.15.0-1038-xilinx-zynqmp (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1055-gkeop (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1065-ibm (Ubuntu package)
linux-image-5.15.0-1065-raspi (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-5.15.0-1067-nvidia (Ubuntu package)
linux-image-5.15.0-1067-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1067-intel-iotg (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1069-kvm (Ubuntu package)
linux-image-5.15.0-1069-gke (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1070-oracle (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1071-gcp (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1072-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1075-azure (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-5.15.0-1078-azure (Ubuntu package)
linux-image-6.8.0-50-generic-64k (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-50-generic (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-50-lowlatency (Ubuntu package)
linux-image-6.8.0-50-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-hwe-24.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-6.8.0-1002-gkeop (Ubuntu package)
linux-image-gkeop-6.8 (Ubuntu package)
linux-image-6.8.0-1015-gke (Ubuntu package)
linux-image-6.8.0-1016-raspi (Ubuntu package)
linux-image-6.8.0-1017-ibm (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-6.8.0-1017-oracle (Ubuntu package)
linux-image-6.8.0-1017-oracle-64k (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1018-oem (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-6.8.0-1019-gcp (Ubuntu package)
linux-image-6.8.0-1019-nvidia (Ubuntu package)
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package)
linux-image-nvidia-64k (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package)
linux-image-nvidia-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-64k-6.8 (Ubuntu package)
linux-image-nvidia-6.8 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-6.8.0-1020-aws (Ubuntu package)
linux-image-6.8.0-1020-azure (Ubuntu package)
linux-image-6.8.0-1020-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
OpenManage Network Integration (OMNI)
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)
IBM Security Guardium

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the dmam_free_coherent() function in kernel/dma/mapping.c. A local user can perform a denial of service (DoS) attack.


How to mitigate CVE-2024-43856

Install update from vendor's website.

Sources