NULL pointer dereference in Linux kernel - CVE-2023-52802

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Main Vulnerability Database Vulnerabilities #VU90536

NULL pointer dereference in Linux kernel - CVE-2023-52802

Published: May 31, 2024 / Updated: May 14, 2025


Vulnerability identifier: #VU90536
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-2023-52802
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 stm32_adc_probe() function in drivers/iio/adc/stm32-adc-core.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
openSUSE Leap
openEuler
kernel-livepatch-6_4_0-150600_10_8-rt
kernel-livepatch-6_4_0-150600_10_8-rt-debuginfo
kernel-livepatch-SLE15-SP6-RT_Update_2-debugsource
python2-perf
python3-perf-debuginfo
kernel-debuginfo
perf
perf-debuginfo
kernel-tools-devel
bpftool-debuginfo
python3-perf
kernel
kernel-tools-debuginfo
python2-perf-debuginfo
kernel-tools
kernel-devel
kernel-debugsource
kernel-source
bpftool
kernel-headers
kernel-syms-rt
kselftests-kmp-rt-debuginfo
kernel-rt-optional-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt_debug-devel-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-devel
reiserfs-kmp-rt
kernel-rt-extra-debuginfo
cluster-md-kmp-rt
kernel-devel-rt
kernel-source-rt
kernel-rt
kernel-rt_debug
kernel-rt-devel
kernel-rt-livepatch-devel
kernel-rt_debug-vdso
dlm-kmp-rt-debuginfo
kernel-rt_debug-livepatch-devel
kernel-rt-extra
gfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt-vdso-debuginfo
kernel-rt-debuginfo
dlm-kmp-rt
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-rt-optional
kernel-rt_debug-vdso-debuginfo
kselftests-kmp-rt
kernel-rt-vdso
kernel-rt_debug-debuginfo

How to mitigate CVE-2023-52802

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.64, 6.5.13, 6.6.3, 6.7
kernel-livepatch-6_4_0-150600_10_8-rt - update to 1-150600.1.3.2
kernel-livepatch-6_4_0-150600_10_8-rt-debuginfo - update to 1-150600.1.3.2
kernel-livepatch-SLE15-SP6-RT_Update_2-debugsource - update to 1-150600.1.3.2
python2-perf - update to 4.19.90-2406.1.0.0279
python3-perf-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
perf - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
perf-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-tools-devel - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
bpftool-debuginfo - update to 4.19.90-2406.1.0.0279
python3-perf - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-tools-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
python2-perf-debuginfo - update to 4.19.90-2406.1.0.0279
kernel-tools - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-devel - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-debugsource - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-source - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
bpftool - update to 4.19.90-2406.1.0.0279
kernel-headers - addressed in versions 5.10.0-136.78.0.158, 5.10.0-202.0.0.115
kernel-syms-rt - update to 6.4.0-150600.10.8.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.8.3
gfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.8.3
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt-devel-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt_debug-devel - update to 6.4.0-150600.10.8.3
reiserfs-kmp-rt - update to 6.4.0-150600.10.8.3
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.8.3
cluster-md-kmp-rt - update to 6.4.0-150600.10.8.3
kernel-devel-rt - update to 6.4.0-150600.10.8.3
kernel-source-rt - update to 6.4.0-150600.10.8.3
kernel-rt - update to 6.4.0-150600.10.8.3
kernel-rt_debug - update to 6.4.0-150600.10.8.3
kernel-rt-devel - update to 6.4.0-150600.10.8.3
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.8.3
kernel-rt_debug-vdso - update to 6.4.0-150600.10.8.3
dlm-kmp-rt-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt_debug-livepatch-devel - update to 6.4.0-150600.10.8.3
kernel-rt-extra - update to 6.4.0-150600.10.8.3
gfs2-kmp-rt - update to 6.4.0-150600.10.8.3
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.8.3
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt-debuginfo - update to 6.4.0-150600.10.8.3
dlm-kmp-rt - update to 6.4.0-150600.10.8.3
kernel-rt-debugsource - update to 6.4.0-150600.10.8.3
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.8.3
ocfs2-kmp-rt - update to 6.4.0-150600.10.8.3
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150600.10.8.3
kernel-rt-optional - update to 6.4.0-150600.10.8.3
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.8.3
kselftests-kmp-rt - update to 6.4.0-150600.10.8.3
kernel-rt-vdso - update to 6.4.0-150600.10.8.3
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.8.3

External References

Related Security Bulletins