Use-after-free in Linux kernel - CVE-2023-52926

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Main Vulnerability Database Vulnerabilities #VU104163

Use-after-free in Linux kernel - CVE-2023-52926

Published: February 24, 2025 / Updated: May 11, 2025


Vulnerability identifier: #VU104163
CSH Severity: Low
CVSS v4 BT: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-52926
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 io_rw_init_file() function in io_uring/rw.c. A local user can escalate privileges on the system.


Affected software

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
Development Tools Module
Confidential Computing Module
SUSE Linux Enterprise Live Patching
Legacy Module
Basesystem Module
SUSE Real Time Module
Public Cloud Module
openSUSE Leap
openEuler
Chrome OS
APEX Cloud Platform for Microsoft Azure
kernel-livepatch-6_4_0-150600_10_34-rt-debuginfo
kernel-livepatch-SLE15-SP6-RT_Update_10-debugsource
kernel-livepatch-6_4_0-150600_10_34-rt
kernel-livepatch-6_4_0-150600_23_47-default-debuginfo
kernel-livepatch-SLE15-SP6_Update_10-debugsource
kernel-livepatch-6_4_0-150600_23_47-default
kernel-coco-vdso-debuginfo
kernel-source-coco
kernel-devel-coco
kernel-coco_debug
kernel-coco
kernel-coco_debug-debuginfo
kernel-coco-devel
kernel-coco_debug-devel
kernel-coco-debugsource
reiserfs-kmp-coco
kernel-coco_debug-debugsource
kernel-coco_debug-devel-debuginfo
kernel-syms-coco
kernel-coco-debuginfo
reiserfs-kmp-coco-debuginfo
kernel-syms-azure
cluster-md-kmp-azure-debuginfo
cluster-md-kmp-azure
ocfs2-kmp-azure-debuginfo
kernel-azure-optional-debuginfo
kernel-azure-extra
dlm-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-azure-optional
kernel-source-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-debugsource
dlm-kmp-azure
kernel-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-devel-azure
kernel-azure-debuginfo
reiserfs-kmp-azure
ocfs2-kmp-azure
kselftests-kmp-azure
kernel-azure-extra-debuginfo
gfs2-kmp-azure
gfs2-kmp-azure-debuginfo
kernel-azure-devel
kselftests-kmp-rt
kernel-rt-vdso-debuginfo
kernel-syms-rt
kernel-rt-livepatch-devel
kernel-rt_debug-vdso-debuginfo
kernel-rt-debuginfo
kselftests-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-optional-debuginfo
dlm-kmp-rt
kernel-rt-debugsource
gfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-rt
kernel-rt_debug
kernel-source-rt
kernel-devel-rt
kernel-rt_debug-devel
ocfs2-kmp-rt
reiserfs-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-rt-optional
reiserfs-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt-vdso
kernel-rt-devel
kernel-rt-extra
kernel-rt_debug-vdso
kernel-rt_debug-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-extra-debuginfo
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
gfs2-kmp-rt-debuginfo
dtb-amazon
dtb-amd
dtb-hisilicon
kernel-syms
dtb-apm
dtb-apple
dtb-rockchip
dtb-broadcom
dtb-marvell
dtb-renesas
kernel-obs-build
dtb-aarch64
dtb-allwinner
dtb-mediatek
dtb-sprd
dtb-xilinx
dtb-nvidia
kernel-obs-qa
dtb-arm
dtb-amlogic
dtb-cavium
dtb-freescale
dtb-exynos
dtb-lg
dtb-qcom
dtb-socionext
dtb-altera
kernel-docs
kernel-obs-build-debugsource
kernel-docs-html
kernel-kvmsmall
kernel-64kb
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-default
gfs2-kmp-64kb
kselftests-kmp-64kb
dlm-kmp-64kb
kernel-64kb-devel
kernel-default-livepatch-devel
dlm-kmp-64kb-debuginfo
kernel-debug-vdso
kernel-64kb-debuginfo
reiserfs-kmp-64kb
ocfs2-kmp-64kb
ocfs2-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kernel-64kb-optional
kernel-64kb-extra
reiserfs-kmp-64kb-debuginfo
kernel-64kb-debugsource
cluster-md-kmp-64kb-debuginfo
kernel-64kb-extra-debuginfo
kernel-64kb-devel-debuginfo
kernel-64kb-optional-debuginfo
kselftests-kmp-64kb-debuginfo
kernel-kvmsmall-vdso
cluster-md-kmp-default-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-default-vdso
ocfs2-kmp-default-debuginfo
kernel-debug-devel
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-devel-debuginfo
kernel-debug
kernel-source
kernel-devel
kernel-source-vanilla
kernel-macros
reiserfs-kmp-default
kernel-default-debugsource
kernel-default-devel-debuginfo
ocfs2-kmp-default
kernel-default-debuginfo
kernel-default-optional
kernel-default-livepatch
dlm-kmp-default
kernel-default-extra
kernel-default-devel
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kselftests-kmp-default
kernel-default-extra-debuginfo
kselftests-kmp-default-debuginfo
reiserfs-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-optional-debuginfo
kernel-default-base-rebuild
kernel-default-base
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-headers
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel

How to mitigate CVE-2023-52926

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.122, 6.6.68, 6.7
APEX Cloud Platform for Microsoft Azure - update to 01.05.01.00
kernel-livepatch-6_4_0-150600_10_34-rt-debuginfo - update to 1-150600.1.5.1
kernel-livepatch-SLE15-SP6-RT_Update_10-debugsource - update to 1-150600.1.5.1
kernel-livepatch-6_4_0-150600_10_34-rt - update to 1-150600.1.5.1
kernel-livepatch-6_4_0-150600_23_47-default-debuginfo - update to 1-150600.13.5.1
kernel-livepatch-SLE15-SP6_Update_10-debugsource - update to 1-150600.13.5.1
kernel-livepatch-6_4_0-150600_23_47-default - update to 1-150600.13.5.1
kernel-coco-vdso-debuginfo - update to 6.4.0-15061.21.coco15sp6.1
kernel-source-coco - update to 6.4.0-15061.21.coco15sp6.1
kernel-devel-coco - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco_debug - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco_debug-debuginfo - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco-devel - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco_debug-devel - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco-debugsource - update to 6.4.0-15061.21.coco15sp6.1
reiserfs-kmp-coco - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco_debug-debugsource - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco_debug-devel-debuginfo - update to 6.4.0-15061.21.coco15sp6.1
kernel-syms-coco - update to 6.4.0-15061.21.coco15sp6.1
kernel-coco-debuginfo - update to 6.4.0-15061.21.coco15sp6.1
reiserfs-kmp-coco-debuginfo - update to 6.4.0-15061.21.coco15sp6.1
kernel-syms-azure - update to 6.4.0-150600.8.34.1
cluster-md-kmp-azure-debuginfo - update to 6.4.0-150600.8.34.2
cluster-md-kmp-azure - update to 6.4.0-150600.8.34.2
ocfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-optional-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-extra - update to 6.4.0-150600.8.34.2
dlm-kmp-azure-debuginfo - update to 6.4.0-150600.8.34.2
kselftests-kmp-azure-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-devel-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-optional - update to 6.4.0-150600.8.34.2
kernel-source-azure - update to 6.4.0-150600.8.34.2
reiserfs-kmp-azure-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-debugsource - update to 6.4.0-150600.8.34.2
dlm-kmp-azure - update to 6.4.0-150600.8.34.2
kernel-azure - update to 6.4.0-150600.8.34.2
kernel-azure-vdso-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-vdso - update to 6.4.0-150600.8.34.2
kernel-devel-azure - update to 6.4.0-150600.8.34.2
kernel-azure-debuginfo - update to 6.4.0-150600.8.34.2
reiserfs-kmp-azure - update to 6.4.0-150600.8.34.2
ocfs2-kmp-azure - update to 6.4.0-150600.8.34.2
kselftests-kmp-azure - update to 6.4.0-150600.8.34.2
kernel-azure-extra-debuginfo - update to 6.4.0-150600.8.34.2
gfs2-kmp-azure - update to 6.4.0-150600.8.34.2
gfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.34.2
kernel-azure-devel - update to 6.4.0-150600.8.34.2
kselftests-kmp-rt - update to 6.4.0-150600.10.34.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.34.1
kernel-syms-rt - update to 6.4.0-150600.10.34.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.34.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.34.1
kernel-rt-debuginfo - update to 6.4.0-150600.10.34.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.34.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150600.10.34.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.34.1
dlm-kmp-rt - update to 6.4.0-150600.10.34.1
kernel-rt-debugsource - update to 6.4.0-150600.10.34.1
gfs2-kmp-rt - update to 6.4.0-150600.10.34.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.34.1
kernel-rt - update to 6.4.0-150600.10.34.1
kernel-rt_debug - update to 6.4.0-150600.10.34.1
kernel-source-rt - update to 6.4.0-150600.10.34.1
kernel-devel-rt - update to 6.4.0-150600.10.34.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.34.1
ocfs2-kmp-rt - update to 6.4.0-150600.10.34.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.34.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.34.1
kernel-rt-optional - update to 6.4.0-150600.10.34.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.34.1
kernel-rt-devel-debuginfo - update to 6.4.0-150600.10.34.1
kernel-rt-vdso - update to 6.4.0-150600.10.34.1
kernel-rt-devel - update to 6.4.0-150600.10.34.1
kernel-rt-extra - update to 6.4.0-150600.10.34.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.34.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.34.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.34.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.34.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150600.10.34.1
cluster-md-kmp-rt - update to 6.4.0-150600.10.34.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.34.1
dtb-amazon - update to 6.4.0-150600.23.47.1
dtb-amd - update to 6.4.0-150600.23.47.1
dtb-hisilicon - update to 6.4.0-150600.23.47.1
kernel-syms - update to 6.4.0-150600.23.47.1
dtb-apm - update to 6.4.0-150600.23.47.1
dtb-apple - update to 6.4.0-150600.23.47.1
dtb-rockchip - update to 6.4.0-150600.23.47.1
dtb-broadcom - update to 6.4.0-150600.23.47.1
dtb-marvell - update to 6.4.0-150600.23.47.1
dtb-renesas - update to 6.4.0-150600.23.47.1
kernel-obs-build - update to 6.4.0-150600.23.47.1
dtb-aarch64 - update to 6.4.0-150600.23.47.1
dtb-allwinner - update to 6.4.0-150600.23.47.1
dtb-mediatek - update to 6.4.0-150600.23.47.1
dtb-sprd - update to 6.4.0-150600.23.47.1
dtb-xilinx - update to 6.4.0-150600.23.47.1
dtb-nvidia - update to 6.4.0-150600.23.47.1
kernel-obs-qa - update to 6.4.0-150600.23.47.1
dtb-arm - update to 6.4.0-150600.23.47.1
dtb-amlogic - update to 6.4.0-150600.23.47.1
dtb-cavium - update to 6.4.0-150600.23.47.1
dtb-freescale - update to 6.4.0-150600.23.47.1
dtb-exynos - update to 6.4.0-150600.23.47.1
dtb-lg - update to 6.4.0-150600.23.47.1
dtb-qcom - update to 6.4.0-150600.23.47.1
dtb-socionext - update to 6.4.0-150600.23.47.1
dtb-altera - update to 6.4.0-150600.23.47.1
kernel-docs - update to 6.4.0-150600.23.47.1
kernel-obs-build-debugsource - update to 6.4.0-150600.23.47.1
kernel-docs-html - update to 6.4.0-150600.23.47.1
kernel-kvmsmall - update to 6.4.0-150600.23.47.2
kernel-64kb - update to 6.4.0-150600.23.47.2
kernel-zfcpdump - update to 6.4.0-150600.23.47.2
kernel-zfcpdump-debugsource - update to 6.4.0-150600.23.47.2
kernel-zfcpdump-debuginfo - update to 6.4.0-150600.23.47.2
kernel-default - update to 6.4.0-150600.23.47.2
gfs2-kmp-64kb - update to 6.4.0-150600.23.47.2
kselftests-kmp-64kb - update to 6.4.0-150600.23.47.2
dlm-kmp-64kb - update to 6.4.0-150600.23.47.2
kernel-64kb-devel - update to 6.4.0-150600.23.47.2
kernel-default-livepatch-devel - update to 6.4.0-150600.23.47.2
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.47.2
kernel-debug-vdso - update to 6.4.0-150600.23.47.2
kernel-64kb-debuginfo - update to 6.4.0-150600.23.47.2
reiserfs-kmp-64kb - update to 6.4.0-150600.23.47.2
ocfs2-kmp-64kb - update to 6.4.0-150600.23.47.2
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.47.2
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.47.2
cluster-md-kmp-64kb - update to 6.4.0-150600.23.47.2
kernel-64kb-optional - update to 6.4.0-150600.23.47.2
kernel-64kb-extra - update to 6.4.0-150600.23.47.2
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.47.2
kernel-64kb-debugsource - update to 6.4.0-150600.23.47.2
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.47.2
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.47.2
kernel-64kb-devel-debuginfo - update to 6.4.0-150600.23.47.2
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.47.2
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.47.2
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.47.2
cluster-md-kmp-default-debuginfo - update to 6.4.0-150600.23.47.2
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.47.2
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.47.2
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.47.2
kernel-kvmsmall-devel - update to 6.4.0-150600.23.47.2
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.47.2
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.47.2
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.47.2
kernel-default-vdso - update to 6.4.0-150600.23.47.2
ocfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.47.2
kernel-debug-devel - update to 6.4.0-150600.23.47.2
kernel-debug-debuginfo - update to 6.4.0-150600.23.47.2
kernel-debug-debugsource - update to 6.4.0-150600.23.47.2
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.47.2
kernel-debug - update to 6.4.0-150600.23.47.2
kernel-source - update to 6.4.0-150600.23.47.2
kernel-devel - update to 6.4.0-150600.23.47.2
kernel-source-vanilla - update to 6.4.0-150600.23.47.2
kernel-macros - update to 6.4.0-150600.23.47.2
reiserfs-kmp-default - update to 6.4.0-150600.23.47.2
kernel-default-debugsource - update to 6.4.0-150600.23.47.2
kernel-default-devel-debuginfo - update to 6.4.0-150600.23.47.2
ocfs2-kmp-default - update to 6.4.0-150600.23.47.2
kernel-default-debuginfo - update to 6.4.0-150600.23.47.2
kernel-default-optional - update to 6.4.0-150600.23.47.2
kernel-default-livepatch - update to 6.4.0-150600.23.47.2
dlm-kmp-default - update to 6.4.0-150600.23.47.2
kernel-default-extra - update to 6.4.0-150600.23.47.2
kernel-default-devel - update to 6.4.0-150600.23.47.2
cluster-md-kmp-default - update to 6.4.0-150600.23.47.2
gfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.47.2
dlm-kmp-default-debuginfo - update to 6.4.0-150600.23.47.2
kselftests-kmp-default - update to 6.4.0-150600.23.47.2
kernel-default-extra-debuginfo - update to 6.4.0-150600.23.47.2
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.47.2
reiserfs-kmp-default-debuginfo - update to 6.4.0-150600.23.47.2
gfs2-kmp-default - update to 6.4.0-150600.23.47.2
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.47.2
kernel-default-base-rebuild - update to 6.4.0-150600.23.47.2.150600.12.20.2
kernel-default-base - update to 6.4.0-150600.23.47.2.150600.12.20.2
python3-perf-debuginfo - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
python3-perf - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
perf-debuginfo - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
perf - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-tools-devel - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-tools-debuginfo - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-tools - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-source - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-headers - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-devel - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-debugsource - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel-debuginfo - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
bpftool-debuginfo - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
bpftool - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
kernel - addressed in versions 6.6.0-82.0.0.75, 6.6.0-82.0.0.86
Chrome OS - update to 132.0.6834.225

External References

Related Security Bulletins