Improper locking in Linux kernel - CVE-2023-53644

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Main Vulnerability Database Vulnerabilities #VU116798

Improper locking in Linux kernel - CVE-2023-53644

Published: October 8, 2025 / Updated: October 26, 2025


Vulnerability identifier: #VU116798
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-2023-53644
CWE-ID: CWE-667
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 improper locking within the usb_shark_probe() function in drivers/media/radio/radio-shark2.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Manager Server 4.3
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Manager Retail Branch Server 4.3
SUSE Linux Enterprise Server 15 SP5
SUSE Manager Proxy 4.3
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Live Patching
openSUSE Leap
kgraft-patch-4_12_14-122_280-default
kernel-livepatch-5_14_21-150400_24_184-default-debuginfo
kernel-livepatch-5_14_21-150400_24_184-default
kernel-livepatch-SLE15-SP4_Update_46-debugsource
kernel-livepatch-5_14_21-150500_55_127-default-debuginfo
kernel-livepatch-5_14_21-150500_55_127-default
kernel-livepatch-SLE15-SP5_Update_32-debugsource
kernel-default-man
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-devel-debuginfo
kernel-macros
kernel-devel
kernel-source
kernel-default
kernel-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-syms
kernel-default-base
gfs2-kmp-default
kernel-default-debugsource
ocfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
dlm-kmp-default
kernel-default-base-debuginfo
cluster-md-kmp-default
kernel-default-devel
ocfs2-kmp-default
cluster-md-kmp-default-debuginfo
kernel-rt
kernel-rt-debuginfo
kernel-rt-debugsource
kernel-source-rt
kernel-64kb-extra-debuginfo
cluster-md-kmp-64kb-debuginfo
kselftests-kmp-64kb
dtb-cavium
dtb-apple
dlm-kmp-64kb
dtb-hisilicon
kernel-64kb-optional
reiserfs-kmp-64kb-debuginfo
kernel-64kb-debugsource
cluster-md-kmp-64kb
dtb-marvell
dtb-xilinx
dtb-amazon
kernel-docs-html
kselftests-kmp-64kb-debuginfo
dtb-sprd
dtb-allwinner
reiserfs-kmp-64kb
kernel-64kb-devel-debuginfo
dtb-altera
dtb-amlogic
dtb-qcom
dtb-renesas
ocfs2-kmp-64kb-debuginfo
dtb-nvidia
dtb-amd
dtb-apm
kernel-64kb
kernel-docs
kernel-obs-qa
kernel-default-extra-debuginfo
reiserfs-kmp-default-debuginfo
kernel-default-optional
kernel-default-extra
kernel-obs-build
kernel-obs-build-debugsource
dtb-rockchip
kernel-default-livepatch
kselftests-kmp-default-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-kvmsmall-debuginfo
kernel-source-vanilla
kselftests-kmp-default
dtb-mediatek
dtb-arm
dtb-broadcom
gfs2-kmp-64kb
kernel-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
dtb-exynos
ocfs2-kmp-64kb
dlm-kmp-64kb-debuginfo
kernel-64kb-optional-debuginfo
dtb-socionext
dtb-lg
kernel-64kb-devel
dtb-freescale
reiserfs-kmp-default
kernel-default-optional-debuginfo
kernel-default-livepatch-devel
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
dtb-aarch64
kernel-64kb-extra
kernel-default-base-rebuild
kernel-rt_debug
kselftests-kmp-rt-debuginfo
kernel-rt-vdso
kernel-rt_debug-devel-debuginfo
kernel-rt-extra-debuginfo
kernel-devel-rt
kernel-rt_debug-debugsource
cluster-md-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt
kernel-rt-extra
kernel-rt_debug-vdso
kernel-syms-rt
kernel-rt-devel
kselftests-kmp-rt
kernel-rt-livepatch-devel
kernel-rt-optional
kernel-rt-livepatch
kernel-rt-optional-debuginfo
dlm-kmp-rt-debuginfo
dlm-kmp-rt
reiserfs-kmp-rt
cluster-md-kmp-rt
gfs2-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-devel
kernel-rt_debug-debuginfo
ocfs2-kmp-rt
kernel-rt-vdso-debuginfo
kernel-rt_debug-vdso-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-default-vdso-debuginfo
kernel-default-vdso
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo

How to mitigate CVE-2023-53644

Install update from vendor's repository.

Linux kernel - update to 5.15.114
kgraft-patch-4_12_14-122_280-default - update to 1-8.5.1
kernel-livepatch-5_14_21-150400_24_184-default-debuginfo - update to 1-150400.9.5.1
kernel-livepatch-5_14_21-150400_24_184-default - update to 1-150400.9.5.1
kernel-livepatch-SLE15-SP4_Update_46-debugsource - update to 1-150400.9.5.1
kernel-livepatch-5_14_21-150500_55_127-default-debuginfo - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_127-default - update to 1-150500.11.3.1
kernel-livepatch-SLE15-SP5_Update_32-debugsource - update to 1-150500.11.3.1
kernel-default-man - update to 4.12.14-122.280.1
kernel-default-kgraft-devel - update to 4.12.14-122.280.1
kernel-default-kgraft - update to 4.12.14-122.280.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-macros - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-devel - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-source - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-syms - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-base - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1.150400.24.94.2, 5.14.21-150500.55.127.1.150500.6.61.1
gfs2-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-debugsource - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-base-debuginfo - update to 4.12.14-122.280.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-devel - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.280.1, 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-rt - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-64kb-extra-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-cavium - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-apple - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-hisilicon - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-optional - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-marvell - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-xilinx - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-amazon - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-docs-html - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-sprd - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-allwinner - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-altera - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-amlogic - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-qcom - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-renesas - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-nvidia - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-amd - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-apm - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-docs - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-obs-qa - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-extra-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-optional - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-extra - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-rockchip - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-devel-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-source-vanilla - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-mediatek - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-arm - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-broadcom - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-exynos - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-optional-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-socionext - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-lg - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-freescale - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-optional-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-aarch64 - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-extra - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-base-rebuild - addressed in versions 5.14.21-150400.24.184.1.150400.24.94.2, 5.14.21-150500.55.127.1.150500.6.61.1
kernel-rt_debug - update to 5.14.21-150500.13.112.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-vdso - update to 5.14.21-150500.13.112.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.112.1
kernel-devel-rt - update to 5.14.21-150500.13.112.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.112.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.112.1
gfs2-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-extra - update to 5.14.21-150500.13.112.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.112.1
kernel-syms-rt - update to 5.14.21-150500.13.112.1
kernel-rt-devel - update to 5.14.21-150500.13.112.1
kselftests-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.112.1
kernel-rt-optional - update to 5.14.21-150500.13.112.1
kernel-rt-livepatch - update to 5.14.21-150500.13.112.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.112.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
dlm-kmp-rt - update to 5.14.21-150500.13.112.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.112.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.112.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.112.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.112.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.112.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default-vdso - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.127.1

External References

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