Input validation error in Linux kernel - CVE-2023-53297

 

Input validation error in Linux kernel - CVE-2023-53297

Published: September 16, 2025 / Updated: September 22, 2025


Vulnerability identifier: #VU115647
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-2023-53297
CWE-ID: CWE-20
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 input validation within the l2cap_disconnect_rsp() function in net/bluetooth/l2cap_core.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 15 SP4
SUSE Manager Server 4.3
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 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 Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
Anolis OS
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
SUSE Linux Enterprise Live Patching
openSUSE Leap
IBM Qradar SIEM
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-livepatch-5_14_21-150400_24_179-default
kernel-livepatch-5_14_21-150400_24_179-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_45-debugsource
kernel-livepatch-SLE15-SP5_Update_31-debugsource
kernel-livepatch-5_14_21-150500_55_124-default-debuginfo
kernel-livepatch-5_14_21-150500_55_124-default
kernel-debug-devel
bpftool
kernel
kernel-debug
kernel-doc
kernel-devel
kernel-headers
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python-perf
kernel-abi-whitelists
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-abi-stablelists
python3-perf
kernel-modules-extra
kernel-modules
kernel-debug-modules
kernel-debug-core
kernel-cross-headers
kernel-core
kernel-debug-modules-extra
kernel-rt-debuginfo
kernel-source-rt
kernel-rt
kernel-rt-debugsource
kernel-zfcpdump
kernel-obs-build
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
dtb-aarch64
dtb-sprd
ocfs2-kmp-64kb
reiserfs-kmp-64kb
kernel-64kb-debuginfo
dtb-socionext
kernel-64kb-optional-debuginfo
kernel-64kb-extra-debuginfo
dtb-hisilicon
gfs2-kmp-64kb-debuginfo
dtb-cavium
dtb-broadcom
kernel-kvmsmall
kernel-syms
kernel-default-livepatch-devel
kernel-default
dlm-kmp-default
ocfs2-kmp-default-debuginfo
kernel-obs-qa
kernel-default-devel-debuginfo
kernel-default-optional
kernel-kvmsmall-devel-debuginfo
kernel-default-extra-debuginfo
dlm-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-livepatch
reiserfs-kmp-default-debuginfo
cluster-md-kmp-default
reiserfs-kmp-64kb-debuginfo
dtb-amd
kselftests-kmp-64kb
dtb-apple
cluster-md-kmp-64kb
dtb-qcom
kernel-64kb-optional
dtb-xilinx
cluster-md-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
dtb-allwinner
dtb-marvell
kernel-64kb-devel-debuginfo
kernel-64kb-devel
dlm-kmp-64kb
dtb-rockchip
kernel-64kb
ocfs2-kmp-64kb-debuginfo
dtb-amazon
dtb-nvidia
dtb-mediatek
dtb-amlogic
dtb-renesas
kselftests-kmp-64kb-debuginfo
dtb-altera
kernel-64kb-extra
gfs2-kmp-64kb
dtb-exynos
kernel-64kb-debugsource
dtb-arm
dtb-apm
dtb-lg
dtb-freescale
kernel-default-optional-debuginfo
kernel-obs-build-debugsource
kernel-docs
kernel-source
kernel-docs-html
kernel-source-vanilla
kernel-macros
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
ocfs2-kmp-default
kernel-default-extra
gfs2-kmp-default-debuginfo
reiserfs-kmp-default
kernel-default-debugsource
kernel-default-debuginfo
kselftests-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-devel
kselftests-kmp-default
kernel-default-base
kernel-default-base-rebuild
kernel-rt_debug-debuginfo
kernel-rt-optional
gfs2-kmp-rt
kernel-rt-livepatch-devel
kernel-rt-devel
kernel-rt_debug-debugsource
cluster-md-kmp-rt
kernel-rt-vdso-debuginfo
dlm-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-optional-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-vdso
kernel-rt_debug
kselftests-kmp-rt-debuginfo
kernel-devel-rt
kernel-rt-extra-debuginfo
kselftests-kmp-rt
reiserfs-kmp-rt
kernel-rt_debug-vdso-debuginfo
dlm-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
kernel-rt-livepatch
ocfs2-kmp-rt
kernel-rt_debug-devel
kernel-rt-vdso
kernel-rt-extra
gfs2-kmp-rt-debuginfo
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-default-vdso

How to mitigate CVE-2023-53297

Install update from vendor's repository.

Linux kernel - update to 6.1.30
IBM Qradar SIEM - update to 7.5.0 Update Pack 14 IF02
kernel-livepatch-5_14_21-150400_24_179-default - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_179-default-debuginfo - update to 1-150400.9.3.1
kernel-livepatch-SLE15-SP4_Update_45-debugsource - update to 1-150400.9.3.1
kernel-livepatch-SLE15-SP5_Update_31-debugsource - 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-5_14_21-150500_55_124-default - update to 1-150500.11.3.1
kernel-debug-devel - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
bpftool - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-debug - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-doc - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-devel - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-headers - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-tools - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-tools-libs - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
kernel-tools-libs-devel - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
perf - addressed in versions 3.10.0-1160.144.1, 4.18.0-553.81.1.0.1
python-perf - update to 3.10.0-1160.144.1
kernel-abi-whitelists - update to 3.10.0-1160.144.1
kernel (Red Hat package) - addressed in versions 3.10.0-1160.144.1.el7, 4.18.0-193.178.1.el8_2, 4.18.0-372.170.1.el8_6, 4.18.0-477.120.1.el8_8, 4.18.0-553.81.1.el8_10, 5.14.0-70.155.1.el9_0, 5.14.0-284.148.1.el9_2
kernel-rt (Red Hat package) - addressed in versions 3.10.0-1160.144.1.rt56.1296.el7, 4.18.0-553.81.1.rt7.422.el8_10, 5.14.0-70.155.1.rt21.227.el9_0, 5.14.0-284.148.1.rt14.433.el9_2
kernel-abi-stablelists - update to 4.18.0-553.81.1.0.1
python3-perf - update to 4.18.0-553.81.1.0.1
kernel-modules-extra - update to 4.18.0-553.81.1.0.1
kernel-modules - update to 4.18.0-553.81.1.0.1
kernel-debug-modules - update to 4.18.0-553.81.1.0.1
kernel-debug-core - update to 4.18.0-553.81.1.0.1
kernel-cross-headers - update to 4.18.0-553.81.1.0.1
kernel-core - update to 4.18.0-553.81.1.0.1
kernel-debug-modules-extra - update to 4.18.0-553.81.1.0.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-rt - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.133.1, 5.14.21-150500.13.109.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-aarch64 - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-sprd - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-socionext - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-optional-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-extra-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-hisilicon - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-cavium - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-broadcom - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-syms - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-obs-qa - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-devel-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-optional - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-devel-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-extra-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-amd - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-apple - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-qcom - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-optional - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-xilinx - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-allwinner - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-marvell - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dlm-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-rockchip - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-amazon - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-nvidia - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-mediatek - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-amlogic - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-renesas - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-altera - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-extra - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-exynos - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-arm - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-apm - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-lg - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
dtb-freescale - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-optional-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-docs - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-source - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-docs-html - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-source-vanilla - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-macros - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-kvmsmall-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
ocfs2-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-extra - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
gfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-debugsource - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
cluster-md-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-devel - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kselftests-kmp-default - addressed in versions 5.14.21-150400.24.179.1, 5.14.21-150500.55.124.1
kernel-default-base - addressed in versions 5.14.21-150400.24.179.1.150400.24.92.1, 5.14.21-150500.55.124.1.150500.6.59.1
kernel-default-base-rebuild - addressed in versions 5.14.21-150400.24.179.1.150400.24.92.1, 5.14.21-150500.55.124.1.150500.6.59.1
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
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.109.1
kernel-rt-devel - update to 5.14.21-150500.13.109.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.109.1
dlm-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
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.109.1
kernel-rt-devel-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_debug - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-devel-rt - update to 5.14.21-150500.13.109.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.109.1
kselftests-kmp-rt - update to 5.14.21-150500.13.109.1
reiserfs-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
dlm-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.109.1
kernel-syms-rt - update to 5.14.21-150500.13.109.1
kernel-rt-livepatch - update to 5.14.21-150500.13.109.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.109.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.109.1
kernel-rt-vdso - update to 5.14.21-150500.13.109.1
kernel-rt-extra - update to 5.14.21-150500.13.109.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.109.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.124.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.124.1
kernel-default-vdso - update to 5.14.21-150500.55.124.1

External References

Related Security Bulletins