Use-after-free in Linux kernel - CVE-2025-38023

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Main Vulnerability Database Vulnerabilities #VU111469

Use-after-free in Linux kernel - CVE-2025-38023

Published: June 19, 2025


Vulnerability identifier: #VU111469
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-38023
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the nfs4_alloc_unlockdata() function in fs/nfs/nfs4proc.c. A local user can escalate privileges on the system.


Affected software

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 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
Legacy Module
Confidential Computing Module
SUSE Linux Enterprise Live Patching
Development Tools Module
Basesystem Module
openSUSE Leap
openEuler
Ubuntu
Anolis OS
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-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-debugsource
kernel-devel
kernel-source
kernel-tools
kernel-tools-devel
perf
perf-debuginfo
python2-perf
kernel-tools-debuginfo
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo
kernel-headers
linux-aws-fips (Ubuntu package)
linux (Ubuntu package)
linux-xilinx-zynqmp (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-raspi (Ubuntu package)
linux-intel-iotg-5.15 (Ubuntu package)
linux-kvm (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
kernel-coco-debuginfo
kernel-coco_debug-debugsource
kernel-syms-coco
kernel-coco-vdso-debuginfo
kernel-devel-coco
reiserfs-kmp-coco
kernel-coco
kernel-coco_debug
kernel-coco_debug-devel
kernel-coco-devel
kernel-coco_debug-debuginfo
kernel-coco_debug-devel-debuginfo
reiserfs-kmp-coco-debuginfo
kernel-source-coco
kernel-coco-debugsource
kernel-obs-qa
dtb-altera
dtb-qcom
dtb-amazon
dtb-xilinx
kernel-docs
dtb-lg
kernel-docs-html
kernel-obs-build-debugsource
dtb-rockchip
dtb-cavium
dtb-sprd
dtb-amlogic
kernel-obs-build
dtb-hisilicon
dtb-mediatek
dtb-exynos
dtb-renesas
dtb-broadcom
dtb-apm
dtb-nvidia
dtb-freescale
dtb-aarch64
dtb-marvell
dtb-allwinner
dtb-socionext
dtb-amd
dtb-arm
dtb-apple
kernel-kvmsmall
kernel-zfcpdump-debuginfo
kernel-syms
kernel-debug-debugsource
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-64kb-optional-debuginfo
reiserfs-kmp-64kb-debuginfo
kernel-64kb-extra
cluster-md-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kselftests-kmp-64kb-debuginfo
kernel-64kb-debugsource
dlm-kmp-64kb
kernel-debug
kernel-64kb-extra-debuginfo
reiserfs-kmp-64kb
dlm-kmp-64kb-debuginfo
kernel-64kb-debuginfo
ocfs2-kmp-64kb
gfs2-kmp-64kb-debuginfo
kernel-64kb-devel
kernel-64kb
kernel-64kb-optional
kernel-64kb-devel-debuginfo
kernel-macros
kernel-source-vanilla
gfs2-kmp-64kb
kernel-debug-devel-debuginfo
kernel-debug-devel
kernel-debug-debuginfo
kernel-debug-vdso
ocfs2-kmp-64kb-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kselftests-kmp-64kb
cluster-md-kmp-default
kernel-default-livepatch-devel
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
kernel-default-optional
kernel-default-devel
kernel-default-debugsource
dlm-kmp-default
cluster-md-kmp-default-debuginfo
kernel-default
kernel-default-extra-debuginfo
kernel-default-devel-debuginfo
kernel-default-extra
kernel-default-livepatch
ocfs2-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-optional-debuginfo
kselftests-kmp-default
gfs2-kmp-default-debuginfo
kernel-default-base
kernel-default-base-rebuild
kernel-extra-modules
kernel-64k-devel
kernel-64k-debug-devel
kernel-64k-debug
kernel-tools-libs
kernel-64k
kernel-tools-libs-devel
linux-lowlatency (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-xilinx (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-ibm (Ubuntu package)
linux-nvidia-lowlatency (Ubuntu package)
linux-gcp-fips (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)
linux-hwe-6.14 (Ubuntu package)

How to mitigate CVE-2025-38023

Install update from vendor's repository.

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-debuginfo - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
bpftool - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
bpftool-debuginfo - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel-debugsource - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel-devel - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel-source - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel-tools - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel-tools-devel - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
perf - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
perf-debuginfo - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
python2-perf - update to 4.19.90-2507.2.0.0335
kernel-tools-debuginfo - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
python2-perf-debuginfo - update to 4.19.90-2507.2.0.0335
python3-perf - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
python3-perf-debuginfo - addressed in versions 4.19.90-2507.2.0.0335, 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
kernel-headers - addressed in versions 5.10.0-272.0.0.174, 5.10.0-272.0.0.175, 6.6.0-100.0.0.92, 6.6.0-100.0.0.103, 6.6.0-101.0.0.107
linux-aws-fips (Ubuntu package) - addressed in versions 5.15.0.144.84, 5.15.0-144.157+fips1, 5.15.0.1087.77, 5.15.0-1087.96+fips1, 5.15.0.1088.84, 5.15.0-1088.95+fips1, 6.8.0-100.100+fips1, 6.8.0-1046.49+fips1
linux (Ubuntu package) - addressed in versions 5.15.0.144.130, 5.15.0.144.141, 5.15.0-144.157, 5.15.0-144.157~20.04.1, 5.15.0.144.157~20.04.1, 5.15.0-1030.30, 5.15.0.1030.32, 5.15.0.1041.41, 5.15.0-1041.41, 5.15.0.1041.41~20.04.1, 5.15.0-1041.41~20.04.1, 5.15.0.1070.69, 5.15.0-1070.78, 5.15.0.1080.76, 5.15.0-1080.83, 5.15.0.1080.83~20.04.1, 5.15.0-1080.83~20.04.1, 5.15.0.1082.82, 5.15.0-1082.83, 5.15.0.1083.83, 5.15.0-1083.89, 5.15.0.1085.81, 5.15.0.1085.84, 5.15.0-1085.91, 5.15.0.1085.91~20.04.3, 5.15.0-1085.91~20.04.3, 5.15.0.1087.83, 5.15.0-1087.96, 5.15.0.1087.96~20.04.1, 5.15.0-1087.96~20.04.2, 5.15.0.1088.91, 5.15.0-1088.95, 5.15.0.1088.95~20.04.1, 5.15.0-1088.95~20.04.1, 6.8.0-100.100, 6.8.0-1047.51, 6.14.0-28.28, 6.14.0-1010.10~24.04.1, 6.14.0-1011.11, 6.14.0-1011.11~24.04.1, 6.14.0-1012.12~24.04.1, 6.14.0-1014.15, 6.14.0-1014.15~24.04.1
linux-xilinx-zynqmp (Ubuntu package) - addressed in versions 5.15.0.1052.55, 5.15.0-1052.56
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1081.83, 5.15.0.1081.85, 5.15.0.1088.92, 5.15.0-1088.97
linux-raspi (Ubuntu package) - addressed in versions 5.15.0.1083.81, 5.15.0-1083.86
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-kvm (Ubuntu package) - addressed in versions 5.15.0.1084.80, 5.15.0-1084.89
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0.1094.79, 5.15.0-1094.103+fips1, 6.8.0-1046.52+fips1
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1094.92, 5.15.0-1094.103, 6.8.0-1046.52
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0.1094.103~20.04.1, 5.15.0-1094.103~20.04.1
kernel-coco-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug-debugsource - update to 6.4.0-15061.28.coco15sp6.1
kernel-syms-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco-vdso-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-devel-coco - 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-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
reiserfs-kmp-coco-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-source-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco-debugsource - update to 6.4.0-15061.28.coco15sp6.1
kernel-obs-qa - update to 6.4.0-150600.23.60.2
dtb-altera - update to 6.4.0-150600.23.60.3
dtb-qcom - update to 6.4.0-150600.23.60.3
dtb-amazon - update to 6.4.0-150600.23.60.3
dtb-xilinx - update to 6.4.0-150600.23.60.3
kernel-docs - update to 6.4.0-150600.23.60.3
dtb-lg - update to 6.4.0-150600.23.60.3
kernel-docs-html - update to 6.4.0-150600.23.60.3
kernel-obs-build-debugsource - 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-sprd - update to 6.4.0-150600.23.60.3
dtb-amlogic - update to 6.4.0-150600.23.60.3
kernel-obs-build - update to 6.4.0-150600.23.60.3
dtb-hisilicon - update to 6.4.0-150600.23.60.3
dtb-mediatek - update to 6.4.0-150600.23.60.3
dtb-exynos - update to 6.4.0-150600.23.60.3
dtb-renesas - 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
dtb-freescale - update to 6.4.0-150600.23.60.3
dtb-aarch64 - update to 6.4.0-150600.23.60.3
dtb-marvell - 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-amd - update to 6.4.0-150600.23.60.3
dtb-arm - update to 6.4.0-150600.23.60.3
dtb-apple - update to 6.4.0-150600.23.60.3
kernel-kvmsmall - update to 6.4.0-150600.23.60.4
kernel-zfcpdump-debuginfo - update to 6.4.0-150600.23.60.4
kernel-syms - update to 6.4.0-150600.23.60.4
kernel-debug-debugsource - update to 6.4.0-150600.23.60.4
kernel-zfcpdump - update to 6.4.0-150600.23.60.4
kernel-zfcpdump-debugsource - 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
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-debug - 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
kernel-64kb-devel - update to 6.4.0-150600.23.60.4
kernel-64kb - 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-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
gfs2-kmp-64kb - 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-vdso - update to 6.4.0-150600.23.60.4
ocfs2-kmp-64kb-debuginfo - 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
kselftests-kmp-64kb - update to 6.4.0-150600.23.60.4
cluster-md-kmp-default - update to 6.4.0-150600.23.60.5
kernel-default-livepatch-devel - 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
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
dlm-kmp-default - update to 6.4.0-150600.23.60.5
cluster-md-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
kernel-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-devel-debuginfo - update to 6.4.0-150600.23.60.5
kernel-default-extra - update to 6.4.0-150600.23.60.5
kernel-default-livepatch - update to 6.4.0-150600.23.60.5
ocfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
reiserfs-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.60.5
kselftests-kmp-default - update to 6.4.0-150600.23.60.5
gfs2-kmp-default-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-extra-modules - update to 6.6.0-101.0.0.107
kernel-devel - update to 6.6.102-5
kernel - update to 6.6.102-5
kernel-headers - update to 6.6.102-5
kernel-64k-devel - update to 6.6.102-5
kernel-64k-debug-devel - update to 6.6.102-5
kernel-64k-debug - update to 6.6.102-5
kernel-tools - update to 6.6.102-5
kernel-tools-libs - update to 6.6.102-5
kernel-64k - update to 6.6.102-5
python3-perf - update to 6.6.102-5
perf - update to 6.6.102-5
kernel-tools-libs-devel - update to 6.6.102-5
kernel-debug - update to 6.6.102-5
bpftool - update to 6.6.102-5
kernel-debug-devel - update to 6.6.102-5
linux-lowlatency (Ubuntu package) - update to 6.8.0-100.100.1
linux-hwe-6.8 (Ubuntu package) - addressed in versions 6.8.0-100.100.1~22.04.1, 6.8.0-100.100~22.04.1
linux-xilinx (Ubuntu package) - addressed in versions 6.8.0-1023.24, 6.8.0.1023.24
linux-aws (Ubuntu package) - addressed in versions 6.8.0-1030.33, 6.8.0-1043.44, 6.8.0-1043.44~22.04.1, 6.8.0-1046.49~22.04.1
linux-gcp (Ubuntu package) - addressed in versions 6.8.0-1043.48, 6.8.0-1047.50~22.04.2
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-1044.44, 6.8.0-1044.44~22.04.1
linux-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1046.49.1
linux-gcp-fips (Ubuntu package) - update to 6.8.0-1047.50+fips1
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
linux-hwe-6.14 (Ubuntu package) - addressed in versions 6.14.0-28.28~24.04.1, 6.14.0-1010.10

External References

Related Security Bulletins