NULL pointer dereference in Linux kernel - CVE-2023-53354

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Main Vulnerability Database Vulnerabilities #VU115789

NULL pointer dereference in Linux kernel - CVE-2023-53354

Published: September 18, 2025 / Updated: September 22, 2025


Vulnerability identifier: #VU115789
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-2023-53354
CWE-ID: CWE-476
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 NULL pointer dereference within the skb_segment() function in net/core/skbuff.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Workstation Extension 15
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Development Tools Module
SUSE Real Time Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Basesystem Module
openSUSE Leap
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-livepatch-6_4_0-150600_10_55-rt
kernel-livepatch-6_4_0-150600_10_55-rt-debuginfo
kernel-livepatch-SLE15-SP6-RT_Update_16-debugsource
kernel-livepatch-6_4_0-150600_23_73-default
kernel-livepatch-SLE15-SP6_Update_16-debugsource
kernel-livepatch-6_4_0-150600_23_73-default-debuginfo
kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource
kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo
kernel-livepatch-6_4_0-150700_7_22-rt
kernel-livepatch-6_4_0-150700_53_22-default-debuginfo
kernel-livepatch-6_4_0-150700_53_22-default
kernel-livepatch-SLE15-SP7_Update_6-debugsource
kernel (Red Hat package)
kernel-rt (Red Hat package)
cluster-md-kmp-azure-debuginfo
kernel-azure-extra
dlm-kmp-azure-debuginfo
kernel-azure-optional
kernel-azure-debugsource
kernel-azure-optional-debuginfo
kernel-source-azure
kselftests-kmp-azure
kernel-azure-extra-debuginfo
gfs2-kmp-azure-debuginfo
ocfs2-kmp-azure-debuginfo
kernel-devel-azure
reiserfs-kmp-azure-debuginfo
dlm-kmp-azure
cluster-md-kmp-azure
kernel-azure-devel
kernel-azure-debuginfo
ocfs2-kmp-azure
kselftests-kmp-azure-debuginfo
kernel-syms-azure
gfs2-kmp-azure
kernel-azure-devel-debuginfo
reiserfs-kmp-azure
kernel-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-devel-rt
kselftests-kmp-rt-debuginfo
kernel-rt-vdso
kernel-rt-extra
reiserfs-kmp-rt
kselftests-kmp-rt
kernel-rt-optional-debuginfo
kernel-rt_debug
kernel-rt
kernel-source-rt
kernel-rt_debug-vdso
kernel-rt_debug-devel-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-debugsource
kernel-rt-devel
gfs2-kmp-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt
ocfs2-kmp-rt
kernel-rt-debugsource
kernel-rt_debug-vdso-debuginfo
kernel-rt_debug-devel
dlm-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-rt-debuginfo
gfs2-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-syms-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-optional
reiserfs-kmp-rt-debuginfo
kernel-rt-livepatch-devel
kernel-rt-extra-debuginfo
gfs2-kmp-default
kernel-default-livepatch
kernel-default-extra
kernel-default-extra-debuginfo
kernel-kvmsmall-vdso
kernel-default-livepatch-devel
kernel-docs-html
kernel-macros
kernel-source-vanilla
kernel-docs
kernel-devel
kernel-debug
kernel-debug-debuginfo
kernel-debug-devel
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-obs-build-debugsource
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
dlm-kmp-default
ocfs2-kmp-default-debuginfo
ocfs2-kmp-default
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-default-debugsource
kernel-default-debuginfo
kernel-default
kernel-source
kernel-obs-build
kernel-syms
kernel-kvmsmall-devel-debuginfo
dtb-allwinner
kernel-64kb-devel-debuginfo
kernel-64kb-debuginfo
kernel-64kb-optional-debuginfo
dtb-freescale
kernel-64kb-extra-debuginfo
dtb-mediatek
cluster-md-kmp-64kb-debuginfo
kernel-64kb-debugsource
dtb-arm
ocfs2-kmp-64kb-debuginfo
dtb-socionext
reiserfs-kmp-64kb
dtb-amd
dtb-altera
kernel-64kb-optional
dtb-nvidia
kernel-kvmsmall-vdso-debuginfo
kselftests-kmp-64kb-debuginfo
dtb-amlogic
dtb-aarch64
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump
kernel-kvmsmall
kernel-obs-qa
kernel-default-devel-debuginfo
kselftests-kmp-default
kernel-default-optional-debuginfo
kernel-default-devel
kselftests-kmp-default-debuginfo
kernel-default-optional
kernel-kvmsmall-devel
dtb-apple
kernel-debug-vdso
kernel-default-vdso-debuginfo
kernel-default-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-64kb
kselftests-kmp-64kb
kernel-64kb-extra
dtb-marvell
dtb-apm
ocfs2-kmp-64kb
dtb-exynos
gfs2-kmp-64kb-debuginfo
dtb-broadcom
dtb-qcom
reiserfs-kmp-64kb-debuginfo
dtb-xilinx
dtb-cavium
dtb-sprd
dlm-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kernel-64kb-devel
dtb-lg
gfs2-kmp-64kb
dtb-renesas
dtb-rockchip
dtb-hisilicon
dtb-amazon
dlm-kmp-64kb
kernel-default-base-rebuild
kernel-default-base

How to mitigate CVE-2023-53354

Install update from vendor's repository.

Linux kernel - update to 4.19.295
kernel-livepatch-6_4_0-150600_10_55-rt - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_10_55-rt-debuginfo - update to 1-150600.1.3.1
kernel-livepatch-SLE15-SP6-RT_Update_16-debugsource - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_23_73-default - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP6_Update_16-debugsource - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_73-default-debuginfo - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_22-rt - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_22-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_22-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_6-debugsource - update to 1-150700.15.3.1
kernel (Red Hat package) - addressed in versions 4.18.0-193.178.1.el8_2, 4.18.0-305.179.1.el8_4, 4.18.0-372.170.1.el8_6, 4.18.0-477.120.1.el8_8, 5.14.0-70.153.1.el9_0
kernel-rt (Red Hat package) - update to 5.14.0-70.153.1.rt21.225.el9_0
cluster-md-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure-extra - update to 6.4.0-150600.8.52.1
dlm-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure-optional - update to 6.4.0-150600.8.52.1
kernel-azure-debugsource - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kernel-azure-optional-debuginfo - update to 6.4.0-150600.8.52.1
kernel-source-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kselftests-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-azure-extra-debuginfo - update to 6.4.0-150600.8.52.1
gfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
ocfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-devel-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
reiserfs-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
dlm-kmp-azure - update to 6.4.0-150600.8.52.1
cluster-md-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-azure-devel - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kernel-azure-debuginfo - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
ocfs2-kmp-azure - update to 6.4.0-150600.8.52.1
kselftests-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-syms-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
gfs2-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-azure-devel-debuginfo - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
reiserfs-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kernel-azure-vdso-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure-vdso - update to 6.4.0-150600.8.52.1
kernel-devel-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-vdso - update to 6.4.0-150600.10.55.1
kernel-rt-extra - update to 6.4.0-150600.10.55.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.55.1
kselftests-kmp-rt - update to 6.4.0-150600.10.55.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt_debug - update to 6.4.0-150600.10.55.1
kernel-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-source-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.55.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-devel-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.55.1
kernel-rt-devel - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
gfs2-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
dlm-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
cluster-md-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
ocfs2-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt-debugsource - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.55.1
dlm-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
gfs2-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
cluster-md-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-syms-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
ocfs2-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-optional - update to 6.4.0-150600.10.55.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.55.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.55.1
gfs2-kmp-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.73.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-docs-html - update to 6.4.0-150600.23.73.1
kernel-macros - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-source-vanilla - update to 6.4.0-150600.23.73.1
kernel-docs - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-devel - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-debug - update to 6.4.0-150600.23.73.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.73.1
kernel-debug-devel - update to 6.4.0-150600.23.73.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.73.1
kernel-debug-debugsource - update to 6.4.0-150600.23.73.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
gfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dlm-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dlm-kmp-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
ocfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
ocfs2-kmp-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
cluster-md-kmp-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
cluster-md-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-source - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-syms - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.73.1
dtb-allwinner - update to 6.4.0-150600.23.73.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.73.1
dtb-freescale - update to 6.4.0-150600.23.73.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.73.1
dtb-mediatek - update to 6.4.0-150600.23.73.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dtb-arm - update to 6.4.0-150600.23.73.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-socionext - update to 6.4.0-150600.23.73.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-amd - update to 6.4.0-150600.23.73.1
dtb-altera - update to 6.4.0-150600.23.73.1
kernel-64kb-optional - update to 6.4.0-150600.23.73.1
dtb-nvidia - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.73.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-amlogic - update to 6.4.0-150600.23.73.1
dtb-aarch64 - update to 6.4.0-150600.23.73.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-kvmsmall - update to 6.4.0-150600.23.73.1
kernel-obs-qa - update to 6.4.0-150600.23.73.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kselftests-kmp-default - update to 6.4.0-150600.23.73.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.73.1
kernel-default-devel - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.73.1
kernel-default-optional - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.73.1
dtb-apple - update to 6.4.0-150600.23.73.1
kernel-debug-vdso - update to 6.4.0-150600.23.73.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.73.1
kernel-default-vdso - update to 6.4.0-150600.23.73.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.73.1
kernel-64kb - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.73.1
kernel-64kb-extra - update to 6.4.0-150600.23.73.1
dtb-marvell - update to 6.4.0-150600.23.73.1
dtb-apm - update to 6.4.0-150600.23.73.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-exynos - update to 6.4.0-150600.23.73.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-broadcom - update to 6.4.0-150600.23.73.1
dtb-qcom - update to 6.4.0-150600.23.73.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-xilinx - update to 6.4.0-150600.23.73.1
dtb-cavium - update to 6.4.0-150600.23.73.1
dtb-sprd - update to 6.4.0-150600.23.73.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.73.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dtb-lg - update to 6.4.0-150600.23.73.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-renesas - update to 6.4.0-150600.23.73.1
dtb-rockchip - update to 6.4.0-150600.23.73.1
dtb-hisilicon - update to 6.4.0-150600.23.73.1
dtb-amazon - update to 6.4.0-150600.23.73.1
dlm-kmp-64kb - update to 6.4.0-150600.23.73.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.73.1.150600.12.32.1
kernel-default-base - addressed in versions 6.4.0-150600.23.73.1.150600.12.32.1, 6.4.0-150700.53.22.1.150700.17.15.1

External References

Related Security Bulletins