Use-after-free in Linux kernel - CVE-2025-39859

Vulnerability identifier: #VU115977

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-2025-39859

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a use-after-free error within the ptp_ocp_detach() function in drivers/ptp/ptp_ocp.c. A local user can escalate privileges on the system.

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
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
openSUSE Leap
kernel-livepatch-6_4_0-150600_10_61-rt-debuginfo
kernel-livepatch-6_4_0-150600_10_61-rt
kernel-livepatch-SLE15-SP6-RT_Update_18-debugsource
kernel-livepatch-6_4_0-150600_23_81-default
kernel-livepatch-6_4_0-150600_23_81-default-debuginfo
kernel-livepatch-SLE15-SP6_Update_18-debugsource
kernel-livepatch-SLE15-SP7-RT_Update_7-debugsource
kernel-livepatch-6_4_0-150700_7_25-rt
kernel-livepatch-6_4_0-150700_7_25-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_25-default-debuginfo
kernel-livepatch-6_4_0-150700_53_25-default
kernel-livepatch-SLE15-SP7_Update_7-debugsource
gfs2-kmp-azure-debuginfo
kernel-azure-debugsource
kernel-devel-azure
kernel-source-azure
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-azure
kernel-azure-optional
kernel-azure-extra
cluster-md-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
kernel-azure-devel
kernel-azure-debuginfo
reiserfs-kmp-azure-debuginfo
ocfs2-kmp-azure
reiserfs-kmp-azure
ocfs2-kmp-azure-debuginfo
dlm-kmp-azure-debuginfo
kselftests-kmp-azure
kernel-azure-devel-debuginfo
cluster-md-kmp-azure
kernel-syms-azure
dlm-kmp-azure
kernel-azure-optional-debuginfo
gfs2-kmp-azure
kselftests-kmp-azure-debuginfo
kernel-rt-debugsource
kernel-rt-extra-debuginfo
ocfs2-kmp-rt
kernel-rt_debug-devel-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-livepatch-devel
kernel-rt_debug-vdso
kernel-rt_debug-vdso-debuginfo
dlm-kmp-rt
kselftests-kmp-rt
kernel-rt-devel
kernel-rt-optional-debuginfo
kernel-rt-extra
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-syms-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
gfs2-kmp-rt-debuginfo
kernel-devel-rt
kernel-rt
kernel-rt_debug
kernel-rt_debug-devel
kernel-source-rt
kernel-rt_debug-debugsource
reiserfs-kmp-rt
reiserfs-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-rt-optional
kernel-rt-vdso
kernel-rt-devel-debuginfo
cluster-md-kmp-rt
kselftests-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
dtb-sprd
dtb-cavium
dtb-arm
dtb-qcom
dtb-mediatek
dtb-amazon
dtb-aarch64
dtb-exynos
dtb-xilinx
dtb-lg
dtb-marvell
dtb-renesas
dtb-apm
dtb-apple
dtb-socionext
dtb-amlogic
dtb-allwinner
dtb-amd
dtb-altera
kernel-docs
dtb-hisilicon
dtb-nvidia
dtb-broadcom
kernel-syms
dtb-freescale
kernel-docs-html
dtb-rockchip
kernel-obs-qa
kernel-devel
kernel-source-vanilla
kernel-source
kernel-macros
kernel-64kb-optional-debuginfo
kernel-64kb
ocfs2-kmp-64kb
dlm-kmp-64kb
gfs2-kmp-64kb
dlm-kmp-64kb-debuginfo
cluster-md-kmp-64kb
gfs2-kmp-64kb-debuginfo
kernel-64kb-devel
kselftests-kmp-64kb
reiserfs-kmp-64kb-debuginfo
kernel-kvmsmall-devel
cluster-md-kmp-default-debuginfo
kernel-default-extra
kernel-default-livepatch
kernel-default-devel-debuginfo
kernel-default-debuginfo
gfs2-kmp-default
kselftests-kmp-default-debuginfo
kernel-default-devel
kernel-obs-build-debugsource
reiserfs-kmp-default
kernel-default-optional
kernel-default-extra-debuginfo
kernel-kvmsmall-debuginfo
kernel-64kb-debugsource
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-vdso-debuginfo
kernel-debug-vdso
kernel-default-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug
kernel-debug-devel-debuginfo
kernel-debug-devel
gfs2-kmp-default-debuginfo
kernel-64kb-extra
cluster-md-kmp-64kb-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-64kb-optional
kernel-64kb-devel-debuginfo
kernel-64kb-extra-debuginfo
reiserfs-kmp-64kb
kernel-64kb-debuginfo
kselftests-kmp-64kb-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-kvmsmall
dlm-kmp-default
kernel-default-livepatch-devel
kernel-default
kernel-default-debugsource
kernel-obs-build
reiserfs-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kselftests-kmp-default
cluster-md-kmp-default
dlm-kmp-default-debuginfo
kernel-default-optional-debuginfo
ocfs2-kmp-default
kernel-default-base-rebuild
kernel-default-base

Install update from vendor's repository.

kernel-livepatch-6_4_0-150600_10_61-rt-debuginfo - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_10_61-rt - update to 1-150600.1.3.1
kernel-livepatch-SLE15-SP6-RT_Update_18-debugsource - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_23_81-default - update to 1-150600.13.3.3
kernel-livepatch-6_4_0-150600_23_81-default-debuginfo - update to 1-150600.13.3.3
kernel-livepatch-SLE15-SP6_Update_18-debugsource - update to 1-150600.13.3.3
kernel-livepatch-SLE15-SP7-RT_Update_7-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_25-rt - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_25-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_25-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_25-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_7-debugsource - update to 1-150700.15.3.1
gfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.58.1
kernel-azure-debugsource - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
kernel-devel-azure - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
kernel-source-azure - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
kernel-azure-vdso - update to 6.4.0-150600.8.58.1
kernel-azure-vdso-debuginfo - update to 6.4.0-150600.8.58.1
kernel-azure - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
kernel-azure-optional - update to 6.4.0-150600.8.58.1
kernel-azure-extra - update to 6.4.0-150600.8.58.1
cluster-md-kmp-azure-debuginfo - update to 6.4.0-150600.8.58.1
kernel-azure-extra-debuginfo - update to 6.4.0-150600.8.58.1
kernel-azure-devel - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
kernel-azure-debuginfo - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
reiserfs-kmp-azure-debuginfo - update to 6.4.0-150600.8.58.1
ocfs2-kmp-azure - update to 6.4.0-150600.8.58.1
reiserfs-kmp-azure - update to 6.4.0-150600.8.58.1
ocfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.58.1
dlm-kmp-azure-debuginfo - update to 6.4.0-150600.8.58.1
kselftests-kmp-azure - update to 6.4.0-150600.8.58.1
kernel-azure-devel-debuginfo - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
cluster-md-kmp-azure - update to 6.4.0-150600.8.58.1
kernel-syms-azure - addressed in versions 6.4.0-150600.8.58.1, 6.4.0-150700.20.21.1
dlm-kmp-azure - update to 6.4.0-150600.8.58.1
kernel-azure-optional-debuginfo - update to 6.4.0-150600.8.58.1
gfs2-kmp-azure - update to 6.4.0-150600.8.58.1
kselftests-kmp-azure-debuginfo - update to 6.4.0-150600.8.58.1
kernel-rt-debugsource - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.61.1
ocfs2-kmp-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.61.1
cluster-md-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.61.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.61.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.61.1
dlm-kmp-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kselftests-kmp-rt - update to 6.4.0-150600.10.61.1
kernel-rt-devel - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.61.1
kernel-rt-extra - update to 6.4.0-150600.10.61.1
dlm-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
gfs2-kmp-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-syms-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
ocfs2-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.61.1
gfs2-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-devel-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt_debug - update to 6.4.0-150600.10.61.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.61.1
kernel-source-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.61.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.61.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.61.1
kernel-rt-debuginfo - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kernel-rt-optional - update to 6.4.0-150600.10.61.1
kernel-rt-vdso - update to 6.4.0-150600.10.61.1
kernel-rt-devel-debuginfo - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
cluster-md-kmp-rt - addressed in versions 6.4.0-150600.10.61.1, 6.4.0-150700.7.25.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.61.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.61.1
dtb-sprd - update to 6.4.0-150600.23.81.1
dtb-cavium - update to 6.4.0-150600.23.81.1
dtb-arm - update to 6.4.0-150600.23.81.1
dtb-qcom - update to 6.4.0-150600.23.81.1
dtb-mediatek - update to 6.4.0-150600.23.81.1
dtb-amazon - update to 6.4.0-150600.23.81.1
dtb-aarch64 - update to 6.4.0-150600.23.81.1
dtb-exynos - update to 6.4.0-150600.23.81.1
dtb-xilinx - update to 6.4.0-150600.23.81.1
dtb-lg - update to 6.4.0-150600.23.81.1
dtb-marvell - update to 6.4.0-150600.23.81.1
dtb-renesas - update to 6.4.0-150600.23.81.1
dtb-apm - update to 6.4.0-150600.23.81.1
dtb-apple - update to 6.4.0-150600.23.81.1
dtb-socionext - update to 6.4.0-150600.23.81.1
dtb-amlogic - update to 6.4.0-150600.23.81.1
dtb-allwinner - update to 6.4.0-150600.23.81.1
dtb-amd - update to 6.4.0-150600.23.81.1
dtb-altera - update to 6.4.0-150600.23.81.1
kernel-docs - addressed in versions 6.4.0-150600.23.81.1, 6.4.0-150700.53.25.2
dtb-hisilicon - update to 6.4.0-150600.23.81.1
dtb-nvidia - update to 6.4.0-150600.23.81.1
dtb-broadcom - update to 6.4.0-150600.23.81.1
kernel-syms - addressed in versions 6.4.0-150600.23.81.1, 6.4.0-150700.53.25.1
dtb-freescale - update to 6.4.0-150600.23.81.1
kernel-docs-html - update to 6.4.0-150600.23.81.1
dtb-rockchip - update to 6.4.0-150600.23.81.1
kernel-obs-qa - update to 6.4.0-150600.23.81.1
kernel-devel - addressed in versions 6.4.0-150600.23.81.2, 6.4.0-150700.53.25.1
kernel-source-vanilla - update to 6.4.0-150600.23.81.2
kernel-source - addressed in versions 6.4.0-150600.23.81.2, 6.4.0-150700.53.25.1
kernel-macros - addressed in versions 6.4.0-150600.23.81.2, 6.4.0-150700.53.25.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.81.3
kernel-64kb - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.81.3
dlm-kmp-64kb - update to 6.4.0-150600.23.81.3
gfs2-kmp-64kb - update to 6.4.0-150600.23.81.3
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.81.3
cluster-md-kmp-64kb - update to 6.4.0-150600.23.81.3
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.81.3
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.81.3
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.81.3
kernel-kvmsmall-devel - update to 6.4.0-150600.23.81.3
cluster-md-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
gfs2-kmp-default - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.81.3
kernel-default-devel - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-optional - update to 6.4.0-150600.23.81.3
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.81.3
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.81.3
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.81.3
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.81.3
kernel-debug-vdso - update to 6.4.0-150600.23.81.3
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.81.3
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.81.3
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.81.3
kernel-default-vdso - update to 6.4.0-150600.23.81.3
kernel-debug-debuginfo - update to 6.4.0-150600.23.81.3
kernel-debug-debugsource - update to 6.4.0-150600.23.81.3
kernel-debug - update to 6.4.0-150600.23.81.3
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.81.3
kernel-debug-devel - update to 6.4.0-150600.23.81.3
gfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-64kb-extra - update to 6.4.0-150600.23.81.3
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.81.3
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.81.3
kernel-64kb-optional - update to 6.4.0-150600.23.81.3
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.81.3
reiserfs-kmp-64kb - update to 6.4.0-150600.23.81.3
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.81.3
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-kvmsmall - update to 6.4.0-150600.23.81.3
dlm-kmp-default - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-debugsource - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
ocfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kselftests-kmp-default - update to 6.4.0-150600.23.81.3
cluster-md-kmp-default - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
dlm-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.81.3
ocfs2-kmp-default - addressed in versions 6.4.0-150600.23.81.3, 6.4.0-150700.53.25.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.81.3.150600.12.36.3
kernel-default-base - addressed in versions 6.4.0-150600.23.81.3.150600.12.36.3, 6.4.0-150700.53.25.1.150700.17.17.1

• https://git.kernel.org/stable/c/8bf935cf789872350b04c1a6468b0a509f67afb2
• https://git.kernel.org/stable/c/f10d3c7267ac7387a5129d5506c3c5f2460cfd9b

• Use-after-free in Linux kernel ptp driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel