Input validation error in Linux kernel - CVE-2025-40253

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Main Vulnerability Database Vulnerabilities #VU119208

Input validation error in Linux kernel - CVE-2025-40253

Published: December 4, 2025


Vulnerability identifier: #VU119208
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-2025-40253
CWE-ID: CWE-20
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 improper input validation within the mpc_rcvd_sweep_req() function in drivers/s390/net/ctcm_mpc.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise High Availability Extension 15
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 Desktop 15
SUSE Linux Enterprise Live Patching
Development Tools Module
Basesystem Module
SUSE Real Time Module
Public Cloud Module
Legacy Module
openSUSE Leap
Ubuntu
kernel-livepatch-6_4_0-150600_23_92-default-debuginfo
kernel-livepatch-SLE15-SP6_Update_21-debugsource
kernel-livepatch-6_4_0-150600_23_92-default
kernel-livepatch-6_4_0-150700_7_34-rt
kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource
kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo
kernel-livepatch-SLE15-SP7_Update_10-debugsource
kernel-livepatch-6_4_0-150700_53_34-default
kernel-livepatch-6_4_0-150700_53_34-default-debuginfo
linux-aws-fips (Ubuntu package)
linux (Ubuntu package)
linux-aws-5.15 (Ubuntu package)
linux-nvidia-tegra-igx (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-raspi (Ubuntu package)
linux-realtime (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
dtb-lg
kernel-obs-build
kernel-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-obs-build-debugsource
kernel-64kb
dtb-xilinx
dtb-allwinner
kernel-default-livepatch
ocfs2-kmp-64kb-debuginfo
dlm-kmp-64kb
dtb-nvidia
ocfs2-kmp-64kb
kernel-64kb-optional-debuginfo
dtb-marvell
dtb-altera
dtb-broadcom
dtb-exynos
cluster-md-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
dtb-qcom
kernel-default-vdso-debuginfo
kernel-default-livepatch-devel
kernel-docs
kernel-docs-html
kernel-source-vanilla
kernel-source
kernel-macros
kernel-devel
kernel-debug
kernel-debug-debuginfo
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-debug-devel
dlm-kmp-default-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-debug-vdso
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
gfs2-kmp-default-debuginfo
kernel-default-extra
kernel-default-extra-debuginfo
dtb-amd
dtb-amazon
dtb-aarch64
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-kvmsmall
kernel-default
kselftests-kmp-default
gfs2-kmp-default
kernel-default-optional-debuginfo
ocfs2-kmp-default-debuginfo
kselftests-kmp-64kb-debuginfo
ocfs2-kmp-default
reiserfs-kmp-default
kernel-obs-qa
kselftests-kmp-default-debuginfo
kernel-default-optional
dlm-kmp-default
kernel-syms
kernel-default-debugsource
kernel-default-devel-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-devel
cluster-md-kmp-default
dtb-rockchip
dtb-freescale
kernel-64kb-extra-debuginfo
kernel-64kb-devel-debuginfo
kernel-64kb-extra
cluster-md-kmp-64kb
kernel-64kb-debugsource
dtb-hisilicon
kernel-64kb-devel
dtb-renesas
kernel-64kb-debuginfo
dtb-arm
kernel-64kb-optional
dtb-apm
dtb-amlogic
dtb-cavium
dtb-mediatek
reiserfs-kmp-64kb
kselftests-kmp-64kb
gfs2-kmp-64kb
dtb-apple
reiserfs-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
dtb-sprd
dtb-socionext
kernel-default-base
kernel-default-base-rebuild
kernel-devel-rt
kernel-rt-debuginfo
gfs2-kmp-rt
kernel-syms-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt-devel
ocfs2-kmp-rt
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
dlm-kmp-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-source-rt
kernel-rt
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure
kernel-azure-devel-debuginfo
linux-xilinx (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-azure-6.8 (Ubuntu package)
linux-gcp-6.17 (Ubuntu package)
linux-realtime-6.17 (Ubuntu package)
linux-oem-6.17 (Ubuntu package)

How to mitigate CVE-2025-40253

Install update from vendor's repository.

kernel-livepatch-6_4_0-150600_23_92-default-debuginfo - update to 1-150600.13.5.1
kernel-livepatch-SLE15-SP6_Update_21-debugsource - update to 1-150600.13.5.1
kernel-livepatch-6_4_0-150600_23_92-default - update to 1-150600.13.5.1
kernel-livepatch-6_4_0-150700_7_34-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7_Update_10-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_34-default - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_34-default-debuginfo - update to 1-150700.15.3.1
linux-aws-fips (Ubuntu package) - addressed in versions 5.15.0.173.100, 5.15.0-173.183+fips1, 5.15.0.1103.93, 5.15.0.1103.99, 5.15.0-1103.110+fips1, 5.15.0-1103.112+fips1, 6.8.0-106.106+fips1, 6.8.0-1050.53+fips1, 6.8.0-1052.55+fips1
linux (Ubuntu package) - addressed in versions 5.15.0.173.146, 5.15.0.173.161, 5.15.0-173.183, 5.15.0-1055.55, 5.15.0-1055.55~20.04.1, 5.15.0.1067.70, 5.15.0-1067.71, 5.15.0.1086.85, 5.15.0-1086.94, 5.15.0.1095.91, 5.15.0-1095.100, 5.15.0.1097.93, 5.15.0.1097.100, 5.15.0-1097.100~20.04.1, 5.15.0.1098.98, 5.15.0-1098.99, 5.15.0-1098.104, 5.15.0.1100.96, 5.15.0-1100.106, 5.15.0.1103.99, 5.15.0.1103.106, 5.15.0-1103.110, 5.15.0-1103.112~20.04.1, 6.8.0-106.106, 6.8.0-106.106.1, 6.8.0-106.106.1~22.04.1, 6.8.0-106.106~22.04.1, 6.8.0-1035.38, 6.8.0-1047.48, 6.8.0-1047.48~22.04.1, 6.8.0-1048.53, 6.8.0-1049.49, 6.8.0-1049.49~22.04.1, 6.8.0-1050.53, 6.8.0-1052.55, 6.8.0-1052.55~22.04.1, 6.17.0-19.19, 6.17.0-19.19~24.04.2, 6.17.0-1009.9, 6.17.0-1009.9~24.04.1, 6.17.0-1009.9~24.04.2
linux-aws-5.15 (Ubuntu package) - addressed in versions 5.15.0-173.183~20.04.1, 5.15.0-1098.104~20.04.1, 5.15.0.1099.98, 5.15.0-1099.105, 5.15.0-1100.106~20.04.1, 5.15.0-1103.110~20.04.1, 5.15.0-1103.112~20.04.1
linux-nvidia-tegra-igx (Ubuntu package) - addressed in versions 5.15.0-1044.44, 5.15.0.1044.46
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1094.96, 5.15.0.1094.98
linux-raspi (Ubuntu package) - addressed in versions 5.15.0.1097.95, 5.15.0-1097.100, 6.8.0-1050.54, 6.8.0-2040.41, 6.17.0-1010.10
linux-realtime (Ubuntu package) - addressed in versions 5.15.0.1102.106, 5.15.0-1102.111, 6.8.1-1045.46, 6.8.1-1045.46~22.04.1
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0.1109.94, 5.15.0-1109.118+fips1, 6.8.0-1052.58+fips1
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1109.107, 5.15.0-1109.118, 6.8.0-1051.57, 6.17.0-1010.10, 6.17.0-1010.10~24.04.1
linux-azure-5.15 (Ubuntu package) - update to 5.15.0-1110.119~20.04.1
dtb-lg - update to 6.4.0-150600.23.92.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
cluster-md-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-64kb - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
dtb-xilinx - update to 6.4.0-150600.23.92.1
dtb-allwinner - update to 6.4.0-150600.23.92.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.92.1
dlm-kmp-64kb - update to 6.4.0-150600.23.92.1
dtb-nvidia - update to 6.4.0-150600.23.92.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.92.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.92.1
dtb-marvell - update to 6.4.0-150600.23.92.1
dtb-altera - update to 6.4.0-150600.23.92.1
dtb-broadcom - update to 6.4.0-150600.23.92.1
dtb-exynos - update to 6.4.0-150600.23.92.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.92.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.92.1
dtb-qcom - update to 6.4.0-150600.23.92.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.92.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-docs - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-docs-html - update to 6.4.0-150600.23.92.1
kernel-source-vanilla - update to 6.4.0-150600.23.92.1
kernel-source - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-macros - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-devel - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-debug - update to 6.4.0-150600.23.92.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.92.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.92.1
kernel-debug-debugsource - update to 6.4.0-150600.23.92.1
kernel-debug-devel - update to 6.4.0-150600.23.92.1
dlm-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.92.1
kernel-default-vdso - update to 6.4.0-150600.23.92.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.92.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.92.1
kernel-debug-vdso - update to 6.4.0-150600.23.92.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.92.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.92.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.92.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.92.1
gfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
dtb-amd - update to 6.4.0-150600.23.92.1
dtb-amazon - update to 6.4.0-150600.23.92.1
dtb-aarch64 - update to 6.4.0-150600.23.92.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-kvmsmall - update to 6.4.0-150600.23.92.1
kernel-default - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kselftests-kmp-default - update to 6.4.0-150600.23.92.1
gfs2-kmp-default - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.92.1
ocfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.92.1
ocfs2-kmp-default - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-obs-qa - update to 6.4.0-150600.23.92.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.92.1
kernel-default-optional - update to 6.4.0-150600.23.92.1
dlm-kmp-default - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-syms - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-debugsource - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-default-devel - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
cluster-md-kmp-default - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
dtb-rockchip - update to 6.4.0-150600.23.92.1
dtb-freescale - update to 6.4.0-150600.23.92.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.92.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
kernel-64kb-extra - update to 6.4.0-150600.23.92.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.92.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
dtb-hisilicon - update to 6.4.0-150600.23.92.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
dtb-renesas - update to 6.4.0-150600.23.92.1
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.92.1, 6.4.0-150700.53.34.1
dtb-arm - update to 6.4.0-150600.23.92.1
kernel-64kb-optional - update to 6.4.0-150600.23.92.1
dtb-apm - update to 6.4.0-150600.23.92.1
dtb-amlogic - update to 6.4.0-150600.23.92.1
dtb-cavium - update to 6.4.0-150600.23.92.1
dtb-mediatek - update to 6.4.0-150600.23.92.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.92.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.92.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.92.1
dtb-apple - update to 6.4.0-150600.23.92.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.92.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.92.1
dtb-sprd - update to 6.4.0-150600.23.92.1
dtb-socionext - update to 6.4.0-150600.23.92.1
kernel-default-base - addressed in versions 6.4.0-150600.23.92.1.150600.12.42.2, 6.4.0-150700.53.34.1.150700.17.23.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.92.1.150600.12.42.2
kernel-devel-rt - update to 6.4.0-150700.7.34.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.34.1
gfs2-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-syms-rt - update to 6.4.0-150700.7.34.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-devel - update to 6.4.0-150700.7.34.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.34.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-rt-debugsource - update to 6.4.0-150700.7.34.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
dlm-kmp-rt - update to 6.4.0-150700.7.34.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
kernel-source-rt - update to 6.4.0-150700.7.34.1
kernel-rt - update to 6.4.0-150700.7.34.1
kernel-azure-devel - update to 6.4.0-150700.53.34.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.34.1
kernel-azure-debugsource - update to 6.4.0-150700.53.34.1
kernel-azure - update to 6.4.0-150700.53.34.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.34.1
linux-xilinx (Ubuntu package) - update to 6.8.0-1029.30
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1049.52, 6.8.0-1049.52.1, 6.8.0-1049.52~22.04.1
linux-aws-6.8 (Ubuntu package) - update to 6.8.0-1050.53~22.04.1
linux-azure-6.8 (Ubuntu package) - update to 6.8.0-1051.57~22.04.1
linux-gcp-6.17 (Ubuntu package) - addressed in versions 6.17.0-1008.9, 6.17.0-1009.9~24.04.3
linux-realtime-6.17 (Ubuntu package) - update to 6.17.0-1008.9~24.04.1
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1017.17

External References

Related Security Bulletins