NULL pointer dereference in Linux kernel - CVE-2023-53332

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Main Vulnerability Database Vulnerabilities #VU115685

NULL pointer dereference in Linux kernel - CVE-2023-53332

Published: September 17, 2025 / Updated: September 22, 2025


Vulnerability identifier: #VU115685
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-2023-53332
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 EXPORT_SYMBOL_GPL() and ipi_send_verify() functions in kernel/irq/ipi.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
openSUSE Leap
openEuler
kgraft-patch-4_12_14-122_275-default
kernel-livepatch-5_14_21-150500_55_124-default
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_31-debugsource
kernel-source
kernel-default-devel
kernel-macros
kernel-devel
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
dlm-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-debuginfo
gfs2-kmp-default
kernel-syms
kernel-default-base
cluster-md-kmp-default-debuginfo
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-default-devel-debuginfo
kernel-default-man
kernel-default
dlm-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-debugsource
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-headers
kernel-rt-vdso
kernel-rt_debug
kernel-rt_debug-devel
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-livepatch
kernel-syms-rt
kernel-rt-debugsource
kernel-rt_debug-devel-debuginfo
dlm-kmp-rt
kernel-rt_debug-vdso-debuginfo
reiserfs-kmp-rt
kselftests-kmp-rt
kernel-rt-extra-debuginfo
kernel-source-rt
kernel-devel-rt
kernel-rt-vdso-debuginfo
kernel-rt
kernel-rt-debuginfo
kernel-rt_debug-vdso
kernel-rt-devel-debuginfo
kernel-rt-optional-debuginfo
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-extra
cluster-md-kmp-rt
kernel-rt-devel
kernel-rt-livepatch-devel
kernel-rt_debug-debuginfo
kernel-rt-optional
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
kselftests-kmp-rt-debuginfo
kernel-64kb
kernel-obs-build
reiserfs-kmp-default
kselftests-kmp-default-debuginfo
kernel-default-extra-debuginfo
reiserfs-kmp-default-debuginfo
kselftests-kmp-default
kernel-default-optional
ocfs2-kmp-64kb-debuginfo
dtb-exynos
kernel-64kb-debuginfo
dtb-broadcom
dtb-amazon
kernel-64kb-devel-debuginfo
dtb-allwinner
dlm-kmp-64kb-debuginfo
dtb-amd
kernel-default-extra
kernel-docs
kernel-source-vanilla
kernel-docs-html
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
dtb-xilinx
kernel-default-optional-debuginfo
kernel-obs-build-debugsource
kernel-obs-qa
kernel-zfcpdump-debuginfo
dtb-qcom
kernel-64kb-optional-debuginfo
kernel-64kb-debugsource
kernel-64kb-optional
kselftests-kmp-64kb
gfs2-kmp-64kb-debuginfo
cluster-md-kmp-64kb-debuginfo
dtb-cavium
dtb-altera
dtb-amlogic
dtb-aarch64
dtb-freescale
kernel-zfcpdump-debugsource
kernel-zfcpdump
kernel-kvmsmall
kernel-default-vdso
kernel-default-vdso-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-64kb-extra
ocfs2-kmp-64kb
dtb-apm
kselftests-kmp-64kb-debuginfo
dlm-kmp-64kb
cluster-md-kmp-64kb
dtb-socionext
dtb-nvidia
reiserfs-kmp-64kb-debuginfo
dtb-lg
dtb-renesas
dtb-rockchip
kernel-64kb-extra-debuginfo
dtb-marvell
dtb-apple
reiserfs-kmp-64kb
dtb-hisilicon
gfs2-kmp-64kb
kernel-64kb-devel
dtb-sprd
dtb-mediatek
dtb-arm
kernel-default-base-rebuild

How to mitigate CVE-2023-53332

Install update from vendor's repository.

Linux kernel - addressed in versions 6.1.18, 6.2.5, 6.3
kgraft-patch-4_12_14-122_275-default - update to 1-8.3.1
kernel-livepatch-5_14_21-150500_55_124-default - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_31-debugsource - update to 1-150500.11.3.1
kernel-source - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-default-devel - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-macros - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-devel - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
dlm-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
gfs2-kmp-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-syms - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-default-base - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1.150500.6.59.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-default-kgraft - update to 4.12.14-122.275.1
kernel-default-kgraft-devel - update to 4.12.14-122.275.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-default-man - update to 4.12.14-122.275.1
kernel-default - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-default-base-debuginfo - update to 4.12.14-122.275.1
kernel-default-debugsource - addressed in versions 4.12.14-122.275.1, 5.14.21-150500.55.124.1
kernel-source - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
bpftool - update to 4.19.90-2509.6.0.0345
bpftool-debuginfo - update to 4.19.90-2509.6.0.0345
kernel-debuginfo - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel-debugsource - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
python3-perf-debuginfo - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
python3-perf - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
python2-perf-debuginfo - update to 4.19.90-2509.6.0.0345
python2-perf - update to 4.19.90-2509.6.0.0345
perf-debuginfo - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
perf - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel-tools-devel - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel-tools-debuginfo - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel-tools - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel-devel - addressed in versions 4.19.90-2509.6.0.0345, 5.10.0-283.0.0.185
kernel-headers - update to 5.10.0-283.0.0.185
kernel-rt-vdso - update to 5.14.21-150500.13.109.1
kernel-rt_debug - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch - update to 5.14.21-150500.13.109.1
kernel-syms-rt - update to 5.14.21-150500.13.109.1
kernel-rt-debugsource - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.109.1
dlm-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.109.1
kernel-source-rt - update to 5.14.21-150500.13.109.1
kernel-devel-rt - update to 5.14.21-150500.13.109.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt - update to 5.14.21-150500.13.109.1
kernel-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.109.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-extra - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-devel - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-64kb - update to 5.14.21-150500.55.124.1
kernel-obs-build - update to 5.14.21-150500.55.124.1
reiserfs-kmp-default - update to 5.14.21-150500.55.124.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-extra-debuginfo - update to 5.14.21-150500.55.124.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150500.55.124.1
kselftests-kmp-default - update to 5.14.21-150500.55.124.1
kernel-default-optional - update to 5.14.21-150500.55.124.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-exynos - update to 5.14.21-150500.55.124.1
kernel-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-broadcom - update to 5.14.21-150500.55.124.1
dtb-amazon - update to 5.14.21-150500.55.124.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150500.55.124.1
dtb-allwinner - update to 5.14.21-150500.55.124.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-amd - update to 5.14.21-150500.55.124.1
kernel-default-extra - update to 5.14.21-150500.55.124.1
kernel-docs - update to 5.14.21-150500.55.124.1
kernel-source-vanilla - update to 5.14.21-150500.55.124.1
kernel-docs-html - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-debugsource - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-devel - update to 5.14.21-150500.55.124.1
dtb-xilinx - update to 5.14.21-150500.55.124.1
kernel-default-optional-debuginfo - update to 5.14.21-150500.55.124.1
kernel-obs-build-debugsource - update to 5.14.21-150500.55.124.1
kernel-obs-qa - update to 5.14.21-150500.55.124.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150500.55.124.1
dtb-qcom - update to 5.14.21-150500.55.124.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150500.55.124.1
kernel-64kb-debugsource - update to 5.14.21-150500.55.124.1
kernel-64kb-optional - update to 5.14.21-150500.55.124.1
kselftests-kmp-64kb - update to 5.14.21-150500.55.124.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-cavium - update to 5.14.21-150500.55.124.1
dtb-altera - update to 5.14.21-150500.55.124.1
dtb-amlogic - update to 5.14.21-150500.55.124.1
dtb-aarch64 - update to 5.14.21-150500.55.124.1
dtb-freescale - update to 5.14.21-150500.55.124.1
kernel-zfcpdump-debugsource - update to 5.14.21-150500.55.124.1
kernel-zfcpdump - update to 5.14.21-150500.55.124.1
kernel-kvmsmall - update to 5.14.21-150500.55.124.1
kernel-default-vdso - update to 5.14.21-150500.55.124.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.124.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.124.1
kernel-default-livepatch - update to 5.14.21-150500.55.124.1
kernel-64kb-extra - update to 5.14.21-150500.55.124.1
ocfs2-kmp-64kb - update to 5.14.21-150500.55.124.1
dtb-apm - update to 5.14.21-150500.55.124.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dlm-kmp-64kb - update to 5.14.21-150500.55.124.1
cluster-md-kmp-64kb - update to 5.14.21-150500.55.124.1
dtb-socionext - update to 5.14.21-150500.55.124.1
dtb-nvidia - update to 5.14.21-150500.55.124.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150500.55.124.1
dtb-lg - update to 5.14.21-150500.55.124.1
dtb-renesas - update to 5.14.21-150500.55.124.1
dtb-rockchip - update to 5.14.21-150500.55.124.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150500.55.124.1
dtb-marvell - update to 5.14.21-150500.55.124.1
dtb-apple - update to 5.14.21-150500.55.124.1
reiserfs-kmp-64kb - update to 5.14.21-150500.55.124.1
dtb-hisilicon - update to 5.14.21-150500.55.124.1
gfs2-kmp-64kb - update to 5.14.21-150500.55.124.1
kernel-64kb-devel - update to 5.14.21-150500.55.124.1
dtb-sprd - update to 5.14.21-150500.55.124.1
dtb-mediatek - update to 5.14.21-150500.55.124.1
dtb-arm - update to 5.14.21-150500.55.124.1
kernel-default-base-rebuild - update to 5.14.21-150500.55.124.1.150500.6.59.1

External References

Related Security Bulletins