Use-after-free in Linux kernel - CVE-2025-37938

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Main Vulnerability Database Vulnerabilities #VU109509

Use-after-free in Linux kernel - CVE-2025-37938

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


Vulnerability identifier: #VU109509
CSH Severity: Low
CVSS v4 BT: 5.9 [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/E:U/U:Clear]
CVE-ID: CVE-2025-37938
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 test_event_printk() function in kernel/trace/trace_events.c. A local user can escalate privileges on the system.


Affected software

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

How to mitigate CVE-2025-37938

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.136, 6.6.89, 6.12.26, 6.13.11, 6.14.2
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-debuginfo - 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-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-vdso-debuginfo - update to 6.4.0-15061.28.coco15sp6.1
kernel-syms-coco - update to 6.4.0-15061.28.coco15sp6.1
kernel-coco_debug-debugsource - 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-obs-qa - update to 6.4.0-150600.23.60.2
dtb-exynos - 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
kernel-obs-build-debugsource - 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-aarch64 - 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
dtb-lg - update to 6.4.0-150600.23.60.3
dtb-altera - update to 6.4.0-150600.23.60.3
dtb-nvidia - update to 6.4.0-150600.23.60.3
dtb-apm - 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
dtb-cavium - update to 6.4.0-150600.23.60.3
dtb-rockchip - update to 6.4.0-150600.23.60.3
dtb-xilinx - 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-hisilicon - update to 6.4.0-150600.23.60.3
dtb-socionext - update to 6.4.0-150600.23.60.3
dtb-allwinner - update to 6.4.0-150600.23.60.3
kernel-docs-html - update to 6.4.0-150600.23.60.3
dtb-renesas - update to 6.4.0-150600.23.60.3
kernel-docs - update to 6.4.0-150600.23.60.3
kernel-source - update to 6.4.0-150600.23.60.4
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-optional - 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-debuginfo - update to 6.4.0-150600.23.60.4
kernel-macros - update to 6.4.0-150600.23.60.4
kernel-64kb - update to 6.4.0-150600.23.60.4
kernel-zfcpdump-debugsource - update to 6.4.0-150600.23.60.4
kernel-zfcpdump-debuginfo - update to 6.4.0-150600.23.60.4
kernel-zfcpdump - update to 6.4.0-150600.23.60.4
kernel-kvmsmall - 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-debugsource - update to 6.4.0-150600.23.60.4
cluster-md-kmp-64kb - update to 6.4.0-150600.23.60.4
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-extra - update to 6.4.0-150600.23.60.4
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.60.4
gfs2-kmp-64kb - update to 6.4.0-150600.23.60.4
kselftests-kmp-64kb - update to 6.4.0-150600.23.60.4
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
kernel-64kb-devel - 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 - update to 6.4.0-150600.23.60.4
kernel-64kb-debuginfo - update to 6.4.0-150600.23.60.4
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.60.4
reiserfs-kmp-64kb - update to 6.4.0-150600.23.60.4
kernel-64kb-extra-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-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-debug - update to 6.4.0-150600.23.60.4
kernel-debug-vdso - update to 6.4.0-150600.23.60.4
kernel-kvmsmall-devel - update to 6.4.0-150600.23.60.4
kernel-debug-debuginfo - update to 6.4.0-150600.23.60.4
kernel-syms - update to 6.4.0-150600.23.60.4
kernel-debug-devel - update to 6.4.0-150600.23.60.4
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.60.4
gfs2-kmp-default - update to 6.4.0-150600.23.60.5
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.60.5
reiserfs-kmp-default - 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-debuginfo - 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
gfs2-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
kernel-default-extra-debuginfo - update to 6.4.0-150600.23.60.5
kernel-default - update to 6.4.0-150600.23.60.5
kernel-default-livepatch-devel - update to 6.4.0-150600.23.60.5
kselftests-kmp-default - update to 6.4.0-150600.23.60.5
ocfs2-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-optional-debuginfo - update to 6.4.0-150600.23.60.5
dlm-kmp-default - update to 6.4.0-150600.23.60.5
kernel-default-debugsource - update to 6.4.0-150600.23.60.5
kernel-default-devel - update to 6.4.0-150600.23.60.5
kernel-default-optional - update to 6.4.0-150600.23.60.5
cluster-md-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-base-rebuild - update to 6.4.0-150600.23.60.5.150600.12.26.4
kernel-default-base - update to 6.4.0-150600.23.60.5.150600.12.26.4
kernel - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
bpftool - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
bpftool-debuginfo - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-debuginfo - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
python3-perf-debuginfo - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-debugsource - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-devel - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-headers - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-source - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-tools - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-tools-debuginfo - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-tools-devel - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
perf - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
perf-debuginfo - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
python3-perf - addressed in versions 6.6.0-92.0.0.86, 6.6.0-92.0.0.97
kernel-devel - update to 6.6.102-5
kernel-tools-libs - update to 6.6.102-5
kernel-tools - update to 6.6.102-5
kernel-headers - update to 6.6.102-5
kernel-64k-debug - 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-debug-devel - update to 6.6.102-5
kernel-debug - update to 6.6.102-5
kernel - update to 6.6.102-5
bpftool - 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 (Ubuntu package) - addressed in versions 6.8.0-100.100, 6.8.0-1047.51, 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-aws-fips (Ubuntu package) - addressed in versions 6.8.0-100.100+fips1, 6.8.0-1046.49+fips1
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, 6.14.0-1007.7, 6.14.0-1007.7+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-azure (Ubuntu package) - addressed in versions 6.8.0-1046.52, 6.14.0-1007.7
linux-azure-fips (Ubuntu package) - update to 6.8.0-1046.52+fips1
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

External References

Related Security Bulletins