Memory leak in Linux kernel - CVE-2025-37909

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU109493

Memory leak in Linux kernel - CVE-2025-37909

Published: May 20, 2025 / Updated: May 21, 2025


Vulnerability identifier: #VU109493
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2025-37909
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to memory leak within the lan743x_tx_frame_add_lso(), lan743x_tx_frame_add_fragment() and lan743x_tx_frame_end() functions in drivers/net/ethernet/microchip/lan743x_main.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Debian Linux
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
Confidential Computing Module
Basesystem Module
Development Tools Module
Legacy Module
SUSE Linux Enterprise Live Patching
openSUSE Leap
Ubuntu
Anolis OS
linux (Ubuntu package)
linux-kvm (Ubuntu package)
linux-gcp (Ubuntu package)
linux-aws (Ubuntu package)
linux-azure (Ubuntu package)
linux-raspi (Ubuntu package)
linux-oracle (Ubuntu package)
linux-lowlatency (Ubuntu package)
linux-gke (Ubuntu package)
linux-aws-5.15 (Ubuntu package)
linux-lowlatency-hwe-5.15 (Ubuntu package)
linux-hwe-5.15 (Ubuntu package)
linux-fips (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-gkeop (Ubuntu package)
linux-realtime (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-ibm-5.15 (Ubuntu package)
linux-nvidia-tegra-igx (Ubuntu package)
linux-intel-iotg (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oracle-5.15 (Ubuntu package)
linux-gcp-5.15 (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-xilinx-zynqmp (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-gcp-fips (Ubuntu package)
linux-aws-fips (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-oem-6.14 (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
kernel-livepatch-6_4_0-150600_23_60-default-debuginfo
kernel-livepatch-SLE15-SP6_Update_13-debugsource
kernel-livepatch-6_4_0-150600_23_60-default
kernel-coco-debugsource
reiserfs-kmp-coco
kernel-coco
kernel-coco_debug
kernel-coco_debug-devel
kernel-coco-vdso-debuginfo
kernel-syms-coco
kernel-devel-coco
kernel-source-coco
kernel-coco_debug-debugsource
reiserfs-kmp-coco-debuginfo
kernel-coco-devel
kernel-coco_debug-debuginfo
kernel-coco_debug-devel-debuginfo
kernel-coco-debuginfo
kernel-obs-qa
dtb-amazon
dtb-arm
dtb-amd
dtb-aarch64
dtb-renesas
dtb-mediatek
kernel-obs-build
dtb-marvell
dtb-freescale
dtb-broadcom
dtb-apm
dtb-nvidia
kernel-obs-build-debugsource
dtb-allwinner
dtb-socionext
dtb-hisilicon
dtb-lg
dtb-apple
kernel-docs
dtb-altera
dtb-qcom
dtb-exynos
dtb-xilinx
kernel-docs-html
dtb-rockchip
dtb-cavium
dtb-amlogic
dtb-sprd
gfs2-kmp-64kb
kselftests-kmp-64kb
kernel-64kb-optional-debuginfo
reiserfs-kmp-64kb-debuginfo
kernel-64kb-extra
cluster-md-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kselftests-kmp-64kb-debuginfo
kernel-64kb-debugsource
dlm-kmp-64kb
kernel-64kb-devel
kernel-macros
kernel-source
kernel-devel
kernel-source-vanilla
kernel-debug
kernel-debug-devel-debuginfo
kernel-debug-devel
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kernel-64kb
kernel-syms
kernel-64kb-optional
kernel-64kb-devel-debuginfo
kernel-64kb-extra-debuginfo
reiserfs-kmp-64kb
dlm-kmp-64kb-debuginfo
kernel-64kb-debuginfo
ocfs2-kmp-64kb
gfs2-kmp-64kb-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-default-livepatch-devel
kernel-default
kernel-default-vdso
kernel-default-vdso-debuginfo
dlm-kmp-default-debuginfo
reiserfs-kmp-default
kselftests-kmp-default-debuginfo
gfs2-kmp-default
ocfs2-kmp-default
kernel-default-debuginfo
cluster-md-kmp-default
kernel-default-optional
kernel-default-devel
kernel-default-debugsource
kernel-default-optional-debuginfo
cluster-md-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
kselftests-kmp-default
reiserfs-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-livepatch
kernel-default-extra
kernel-default-devel-debuginfo
dlm-kmp-default
kernel-default-extra-debuginfo
kernel-default-base
kernel-default-base-rebuild
kernel-tools
kernel-headers
bpftool
kernel
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-64k
kernel-64k-debug
kernel-64k-debug-devel
kernel-64k-devel
linux-intel-iotg-5.15 (Ubuntu package)
linux (Debian package)
linux-hwe-6.8 (Ubuntu package)
linux-xilinx (Ubuntu package)
linux-nvidia-lowlatency (Ubuntu package)
linux-gcp-6.8 (Ubuntu package)
linux-azure-6.8 (Ubuntu package)
linux-raspi-realtime (Ubuntu package)
linux-realtime-6.8 (Ubuntu package)

How to mitigate CVE-2025-37909

Install update from vendor's website.

Linux kernel - update to 6.14.6
linux (Ubuntu package) - addressed in versions 5.15.0-144.157, 6.8.0-100.100, 6.8.0-1047.51, 6.14.0-24.24
linux-kvm (Ubuntu package) - update to 5.15.0-1084.89
linux-gcp (Ubuntu package) - addressed in versions 5.15.0-1087.96, 6.8.0-1043.48, 6.8.0-1047.50~22.04.2, 6.14.0-1011.11
linux-aws (Ubuntu package) - addressed in versions 5.15.0-1088.95, 6.8.0-1030.33, 6.8.0-1043.44~22.04.1, 6.8.0-1043.44, 6.8.0-1046.49~22.04.1, 6.14.0-1009.9
linux-azure (Ubuntu package) - addressed in versions 5.15.0-1094.103, 6.8.0-1046.52, 6.14.0-1010.10
linux-raspi (Ubuntu package) - addressed in versions 5.15.0-1083.86, 6.14.0-1009.9
linux-oracle (Ubuntu package) - addressed in versions 5.15.0-1085.91, 6.14.0-1009.9
linux-lowlatency (Ubuntu package) - addressed in versions 5.15.0-144.157, 6.8.0-100.100.1
linux-gke (Ubuntu package) - update to 5.15.0-1085.91
linux-aws-5.15 (Ubuntu package) - update to 5.15.0-1088.95~20.04.1
linux-lowlatency-hwe-5.15 (Ubuntu package) - update to 5.15.0-144.157~20.04.1
linux-hwe-5.15 (Ubuntu package) - update to 5.15.0-144.157~20.04.1
linux-fips (Ubuntu package) - update to 5.15.0-144.157+fips1
linux-azure-5.15 (Ubuntu package) - update to 5.15.0-1094.103~20.04.1
linux-gkeop (Ubuntu package) - update to 5.15.0-1070.78
linux-realtime (Ubuntu package) - addressed in versions 5.15.0-1088.97, 6.14.0-1006.6
linux-nvidia (Ubuntu package) - update to 5.15.0-1082.83
linux-ibm-5.15 (Ubuntu package) - update to 5.15.0-1080.83~20.04.1
linux-nvidia-tegra-igx (Ubuntu package) - update to 5.15.0-1030.30
linux-intel-iotg (Ubuntu package) - update to 5.15.0-1083.89
linux-nvidia-tegra (Ubuntu package) - update to 5.15.0-1041.41
linux-ibm (Ubuntu package) - addressed in versions 5.15.0-1080.83, 6.8.0-1044.44~22.04.1, 6.8.0-1044.44
linux-oracle-5.15 (Ubuntu package) - update to 5.15.0-1085.91~20.04.3
linux-gcp-5.15 (Ubuntu package) - update to 5.15.0-1087.96~20.04.2
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1041.41~20.04.1
linux-xilinx-zynqmp (Ubuntu package) - update to 5.15.0-1052.56
linux-intel-iot-realtime (Ubuntu package) - update to 5.15.0-1081.83
linux-gcp-fips (Ubuntu package) - addressed in versions 5.15.0-1087.96+fips1, 6.8.0-1047.50+fips1
linux-aws-fips (Ubuntu package) - addressed in versions 5.15.0-1088.95+fips1, 6.8.0-100.100+fips1, 6.8.0-1046.49+fips1
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0-1094.103+fips1, 6.8.0-1046.52+fips1
linux-oem-6.14 (Ubuntu package) - update to 6.14.0-1007.7
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1009.9~24.04.1
kernel-livepatch-6_4_0-150600_23_60-default-debuginfo - update to 1-150600.13.6.4
kernel-livepatch-SLE15-SP6_Update_13-debugsource - update to 1-150600.13.6.4
kernel-livepatch-6_4_0-150600_23_60-default - update to 1-150600.13.6.4
kernel-coco-debugsource - update to 6.4.0-15061.28.coco15sp6.1
reiserfs-kmp-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug-devel - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco-vdso-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-syms-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-devel-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-source-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug-debugsource - update to 6.4.0-15061.28.coco15sp6.1
reiserfs-kmp-coco-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco-devel - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug-devel-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-obs-qa - update to 6.4.0-150600.23.60.2
dtb-amazon - update to 6.4.0-150600.23.60.3
dtb-arm - update to 6.4.0-150600.23.60.3
dtb-amd - update to 6.4.0-150600.23.60.3
dtb-aarch64 - update to 6.4.0-150600.23.60.3
dtb-renesas - update to 6.4.0-150600.23.60.3
dtb-mediatek - update to 6.4.0-150600.23.60.3
kernel-obs-build - update to 6.4.0-150600.23.60.3
dtb-marvell - update to 6.4.0-150600.23.60.3
dtb-freescale - update to 6.4.0-150600.23.60.3
dtb-broadcom - update to 6.4.0-150600.23.60.3
dtb-apm - update to 6.4.0-150600.23.60.3
dtb-nvidia - update to 6.4.0-150600.23.60.3
kernel-obs-build-debugsource - update to 6.4.0-150600.23.60.3
dtb-allwinner - update to 6.4.0-150600.23.60.3
dtb-socionext - update to 6.4.0-150600.23.60.3
dtb-hisilicon - update to 6.4.0-150600.23.60.3
dtb-lg - update to 6.4.0-150600.23.60.3
dtb-apple - update to 6.4.0-150600.23.60.3
kernel-docs - update to 6.4.0-150600.23.60.3
dtb-altera - update to 6.4.0-150600.23.60.3
dtb-qcom - update to 6.4.0-150600.23.60.3
dtb-exynos - update to 6.4.0-150600.23.60.3
dtb-xilinx - update to 6.4.0-150600.23.60.3
kernel-docs-html - update to 6.4.0-150600.23.60.3
dtb-rockchip - update to 6.4.0-150600.23.60.3
dtb-cavium - update to 6.4.0-150600.23.60.3
dtb-amlogic - update to 6.4.0-150600.23.60.3
dtb-sprd - update to 6.4.0-150600.23.60.3
gfs2-kmp-64kb - update to 6.4.0-150600.23.60.4
kselftests-kmp-64kb - update to 6.4.0-150600.23.60.4
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.60.4
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-extra - update to 6.4.0-150600.23.60.4
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
cluster-md-kmp-64kb - update to 6.4.0-150600.23.60.4
kernel-kvmsmall - update to 6.4.0-150600.23.60.4
kernel-zfcpdump - update to 6.4.0-150600.23.60.4
kernel-zfcpdump-debuginfo - update to 6.4.0-150600.23.60.4
kernel-zfcpdump-debugsource - update to 6.4.0-150600.23.60.4
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-debugsource - update to 6.4.0-150600.23.60.4
dlm-kmp-64kb - update to 6.4.0-150600.23.60.4
kernel-64kb-devel - update to 6.4.0-150600.23.60.4
kernel-macros - update to 6.4.0-150600.23.60.4
kernel-source - update to 6.4.0-150600.23.60.4
kernel-devel - update to 6.4.0-150600.23.60.4
kernel-source-vanilla - update to 6.4.0-150600.23.60.4
kernel-debug - update to 6.4.0-150600.23.60.4
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.60.4
kernel-debug-devel - update to 6.4.0-150600.23.60.4
kernel-debug-debuginfo - update to 6.4.0-150600.23.60.4
kernel-debug-debugsource - update to 6.4.0-150600.23.60.4
kernel-debug-vdso - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.60.4
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-devel - update to 6.4.0-150600.23.60.4
kernel-64kb - update to 6.4.0-150600.23.60.4
kernel-syms - update to 6.4.0-150600.23.60.4
kernel-64kb-optional - update to 6.4.0-150600.23.60.4
kernel-64kb-devel-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.60.4
reiserfs-kmp-64kb - update to 6.4.0-150600.23.60.4
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-debuginfo - update to 6.4.0-150600.23.60.4
ocfs2-kmp-64kb - update to 6.4.0-150600.23.60.4
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-default-livepatch-devel - update to 6.4.0-150600.23.60.5
kernel-default - update to 6.4.0-150600.23.60.5
kernel-default-vdso - update to 6.4.0-150600.23.60.5
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.60.5
dlm-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
reiserfs-kmp-default - update to 6.4.0-150600.23.60.5
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
gfs2-kmp-default - update to 6.4.0-150600.23.60.5
ocfs2-kmp-default - update to 6.4.0-150600.23.60.5
kernel-default-debuginfo - update to 6.4.0-150600.23.60.5
cluster-md-kmp-default - update to 6.4.0-150600.23.60.5
kernel-default-optional - update to 6.4.0-150600.23.60.5
kernel-default-devel - update to 6.4.0-150600.23.60.5
kernel-default-debugsource - update to 6.4.0-150600.23.60.5
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.60.5
cluster-md-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
gfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
kselftests-kmp-default - update to 6.4.0-150600.23.60.5
reiserfs-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
ocfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
kernel-default-livepatch - update to 6.4.0-150600.23.60.5
kernel-default-extra - update to 6.4.0-150600.23.60.5
kernel-default-devel-debuginfo - update to 6.4.0-150600.23.60.5
dlm-kmp-default - update to 6.4.0-150600.23.60.5
kernel-default-extra-debuginfo - update to 6.4.0-150600.23.60.5
kernel-default-base - update to 6.4.0-150600.23.60.5.150600.12.26.4
kernel-default-base-rebuild - update to 6.4.0-150600.23.60.5.150600.12.26.4
kernel-debug - update to 6.6.102-5
kernel-tools - update to 6.6.102-5
kernel-headers - update to 6.6.102-5
kernel-devel - update to 6.6.102-5
kernel-debug-devel - update to 6.6.102-5
bpftool - update to 6.6.102-5
kernel - update to 6.6.102-5
kernel-tools-libs - update to 6.6.102-5
kernel-tools-libs-devel - update to 6.6.102-5
perf - update to 6.6.102-5
python3-perf - update to 6.6.102-5
kernel-64k - update to 6.6.102-5
kernel-64k-debug - update to 6.6.102-5
kernel-64k-debug-devel - update to 6.6.102-5
kernel-64k-devel - update to 6.6.102-5
linux-intel-iotg-5.15 (Ubuntu package) - addressed in versions 5.15.0-1083.89~20.04.1, 5.15.0.1083.89~20.04.1
linux (Debian package) - update to 6.1.140-1
linux-hwe-6.8 (Ubuntu package) - addressed in versions 6.8.0-100.100~22.04.1, 6.8.0-100.100.1~22.04.1
linux-xilinx (Ubuntu package) - addressed in versions 6.8.0-1023.24, 6.8.0.1023.24
linux-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1046.49.1
linux-gcp-6.8 (Ubuntu package) - update to 6.8.0-1047.50~22.04.2
linux-azure-6.8 (Ubuntu package) - update to 6.8.0-1051.57~22.04.1
linux-raspi-realtime (Ubuntu package) - addressed in versions 6.8.0-2037.38, 6.8.1-1041.42
linux-realtime-6.8 (Ubuntu package) - update to 6.8.1-1041.42~22.04.1

External References

Related Security Bulletins