Out-of-bounds read in Linux kernel - CVE-2024-44938

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Main Vulnerability Database Vulnerabilities #VU96550

Out-of-bounds read in Linux kernel - CVE-2024-44938

Published: August 26, 2024 / Updated: May 12, 2025


Vulnerability identifier: #VU96550
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-2024-44938
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available
Affected software:
Linux kernel
Debian Linux
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Micro
openSUSE Leap Micro
Ubuntu
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Server 15 SP4 LTSS
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
openSUSE Leap
openEuler
linux-image-generic (Ubuntu package)
linux-image-5.4.0-211-lowlatency (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-5.4.0-211-generic (Ubuntu package)
linux-image-4.15.0-235-lowlatency (Ubuntu package)
linux-image-4.15.0-235-generic (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-oracle-lts-18.04 (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-5.4.0-1140-oracle (Ubuntu package)
linux-image-4.15.0-1186-azure (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-aws-fips (Ubuntu package)
linux-image-fips (Ubuntu package)
linux-image-intel-iot-realtime (Ubuntu package)
linux-image-azure-fips (Ubuntu package)
linux-image-5.4.0-1116-fips (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-5.4.0-1145-gcp (Ubuntu package)
linux-image-5.4.0-1147-azure (Ubuntu package)
linux-image-4.4.0-1142-kvm (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-4.4.0-266-lowlatency (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-5.4.0-1142-aws-fips (Ubuntu package)
linux-image-5.4.0-1142-aws (Ubuntu package)
linux-image-5.4.0-1090-ibm (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-4.4.0-1179-aws (Ubuntu package)
linux-image-4.4.0-266-generic (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-4.15.0-1178-aws (Ubuntu package)
linux-image-4.15.0-1171-gcp (Ubuntu package)
linux-image-4.15.0-1161-kvm (Ubuntu package)
linux-image-4.15.0-1140-oracle (Ubuntu package)
linux-image-4.4.0-1141-aws (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-5.4.0-1145-gcp-fips (Ubuntu package)
linux-image-5.15.0-1083-azure-fips (Ubuntu package)
linux-image-5.15.0-1079-gcp-fips (Ubuntu package)
linux-image-5.15.0-1073-intel-iot-realtime (Ubuntu package)
kernel-livepatch-SLE15-SP4_Update_31-debugsource
kernel-livepatch-5_14_21-150400_24_133-default
kernel-livepatch-5_14_21-150400_24_133-default-debuginfo
kernel-livepatch-5_14_21-150500_55_80-default-debuginfo
kernel-livepatch-5_14_21-150500_13_67-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_67-rt
kernel-livepatch-SLE15-SP5_Update_19-debugsource
kernel-livepatch-SLE15-SP5-RT_Update_19-debugsource
kernel-livepatch-5_14_21-150500_55_80-default
kernel-livepatch-6_4_0-150600_10_8-rt
kernel-livepatch-SLE15-SP6-RT_Update_2-debugsource
kernel-livepatch-6_4_0-150600_10_8-rt-debuginfo
kernel-livepatch-SLE15-SP6_Update_4-debugsource
kernel-livepatch-6_4_0-150600_23_22-default
kernel-livepatch-6_4_0-150600_23_22-default-debuginfo
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-211-generic-lpae (Ubuntu package)
linux-image-5.4.0-1048-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1060-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1088-ibm (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1101-bluefield (Ubuntu package)
linux-image-5.4.0-1129-kvm (Ubuntu package)
linux-raspi (Ubuntu package)
linux-raspi-5.4 (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
kernel
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
python3-perf-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool
bpftool-debuginfo
kernel-rt-debuginfo
kernel-source-rt
kernel-rt-debugsource
kernel-rt
dtb-amlogic
dtb-arm
dtb-rockchip
dtb-broadcom
dtb-amazon
dtb-qcom
dtb-apm
dtb-apple
kernel-docs
kernel-docs-html
kernel-obs-qa
kernel-syms
dtb-hisilicon
dtb-mediatek
dtb-sprd
dtb-aarch64
dtb-amd
dtb-freescale
dtb-renesas
dtb-nvidia
dtb-xilinx
dtb-allwinner
dtb-altera
dtb-lg
dtb-exynos
dtb-marvell
dtb-socionext
dtb-cavium
kernel-source-vanilla
kernel-64kb-optional
kernel-64kb
gfs2-kmp-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-macros
kselftests-kmp-64kb-debuginfo
kernel-debug-devel
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-debug-debuginfo
kernel-debug-livepatch-devel
kernel-kvmsmall-livepatch-devel
gfs2-kmp-64kb
ocfs2-kmp-64kb
kernel-64kb-optional-debuginfo
reiserfs-kmp-64kb
kernel-64kb-debuginfo
kernel-64kb-devel
kernel-64kb-extra-debuginfo
cluster-md-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kernel-debug
reiserfs-kmp-64kb-debuginfo
dlm-kmp-64kb
ocfs2-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
kernel-64kb-debugsource
kselftests-kmp-64kb
kernel-64kb-extra
kernel-64kb-livepatch-devel
gfs2-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-devel-debuginfo
kernel-default-debugsource
dlm-kmp-default
kernel-default-livepatch-devel
ocfs2-kmp-default-debuginfo
kernel-obs-build
kernel-default-optional-debuginfo
kernel-default-devel
kernel-default-extra-debuginfo
kernel-default-debuginfo
cluster-md-kmp-default
kernel-default-extra
cluster-md-kmp-default-debuginfo
kernel-default-livepatch
dlm-kmp-default-debuginfo
reiserfs-kmp-default
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-default-optional
kernel-kvmsmall-devel
ocfs2-kmp-default
kselftests-kmp-default
kernel-obs-build-debugsource
kernel-kvmsmall
kernel-default
kselftests-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-base-rebuild
kernel-default-base
kernel-syms-rt
kernel-rt_debug-vdso-debuginfo
kernel-rt_debug
dlm-kmp-rt
kernel-rt_debug-debugsource
kernel-rt_debug-debuginfo
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt_debug-devel
kernel-rt-devel-debuginfo
kernel-devel-rt
kernel-rt-livepatch-devel
kernel-rt-extra-debuginfo
kselftests-kmp-rt
cluster-md-kmp-rt
kernel-rt-optional-debuginfo
kernel-rt-optional
kernel-rt-extra
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-livepatch-devel
kernel-rt-livepatch
reiserfs-kmp-rt
kselftests-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt_debug-vdso
kernel-rt-vdso
gfs2-kmp-rt
kernel-rt-devel
kernel-rt_debug-devel-debuginfo
ocfs2-kmp-azure-debuginfo
gfs2-kmp-azure-debuginfo
dlm-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
ocfs2-kmp-azure
kernel-azure-debugsource
kernel-azure-optional-debuginfo
cluster-md-kmp-azure
gfs2-kmp-azure
kernel-devel-azure
kernel-source-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-azure
kernel-syms-azure
kernel-azure-livepatch-devel
kselftests-kmp-azure
kernel-azure-debuginfo
reiserfs-kmp-azure-debuginfo
cluster-md-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
reiserfs-kmp-azure
kernel-azure-devel
kernel-azure-devel-debuginfo
kernel-azure-optional
kernel-azure-extra
dlm-kmp-azure
kernel-default-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-default-vdso
kernel-debug-vdso
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
linux-image-lowlatency-64k (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-5.15.0-135-generic (Ubuntu package)
linux-image-5.15.0-135-generic-64k (Ubuntu package)
linux-image-5.15.0-135-generic-lpae (Ubuntu package)
linux-image-5.15.0-135-lowlatency (Ubuntu package)
linux-image-5.15.0-135-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-5.15.0-136-generic (Ubuntu package)
linux-image-5.15.0-136-generic-64k (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-5.15.0-136-generic-lpae (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-5.15.0-1021-nvidia-tegra-igx (Ubuntu package)
linux-image-5.15.0-1021-nvidia-tegra-igx-rt (Ubuntu package)
linux-image-nvidia-tegra-igx-rt (Ubuntu package)
linux-image-nvidia-tegra-igx (Ubuntu package)
linux-image-nvidia-tegra-rt (Ubuntu package)
linux-image-nvidia-tegra (Ubuntu package)
linux-image-5.15.0-1033-nvidia-tegra-rt (Ubuntu package)
linux-image-5.15.0-1033-nvidia-tegra (Ubuntu package)
linux-image-5.15.0-1044-xilinx-zynqmp (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.15.0-1062-gkeop (Ubuntu package)
linux-image-5.15.0-1072-ibm (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1074-nvidia (Ubuntu package)
linux-image-5.15.0-1074-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1074-raspi (Ubuntu package)
linux-image-5.15.0-1074-ibm (Ubuntu package)
linux-image-5.15.0-1075-intel-iotg (Ubuntu package)
linux-image-5.15.0-1076-kvm (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1077-oracle (Ubuntu package)
linux-image-5.15.0-1077-gke (Ubuntu package)
linux-image-5.15.0-1077-intel-iotg (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1079-gcp (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1080-aws (Ubuntu package)
linux-image-5.15.0-1081-gcp (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1084-azure (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-5.15.0-1086-azure (Ubuntu package)
linux-image-5.15.0-1086-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux (Debian package)
linux-image-6.8.0-50-generic (Ubuntu package)
linux-image-6.8.0-50-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-virtual-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-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-oem-22.04d (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-ibm-classic (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-6.8.0-1017-ibm (Ubuntu package)
linux-image-6.8.0-1017-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1017-oracle-64k (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-6.8.0-1018-oem (Ubuntu package)
linux-image-6.8.0-1019-nvidia (Ubuntu package)
linux-image-6.8.0-1019-gcp (Ubuntu package)
linux-image-nvidia-64k (Ubuntu package)
linux-image-6.8.0-1019-nvidia-64k (Ubuntu package)
linux-image-nvidia-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency (Ubuntu package)
linux-image-6.8.0-1019-nvidia-lowlatency-64k (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-6.8 (Ubuntu package)
linux-image-nvidia-6.8 (Ubuntu package)
linux-image-6.8.0-1020-aws (Ubuntu package)
linux-image-6.8.0-1020-azure-fde (Ubuntu package)
linux-image-6.8.0-1020-azure (Ubuntu package)
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)
Dell EMC VxRail Appliance

Detailed vulnerability description

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

The vulnerability exists due to an out-of-bounds read error within the dbDiscardAG() function in fs/jfs/jfs_dmap.c. A local user can perform a denial of service (DoS) attack.


How to mitigate CVE-2024-44938

Install update from vendor's website.

Sources