Improper Initialization in Linux kernel - CVE-2026-43053

Vulnerability identifier: #VU128864

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-2026-43053

CWE-ID: CWE-665

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the XFS extended attribute dabtree inactivation logic when processing inode inactivation and log recovery. A local user can trigger a log shutdown during attribute fork inactivation to cause a denial of service.

The issue affects inodes with node-format extended attributes and can lead to metadata verification failures on the next mount during recovery processing.

Linux kernel
SUSE Linux Enterprise Workstation 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 Availability Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Micro
SUSE Linux Micro Extras
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
Basesystem Module
Development Tools Module
Legacy Module
Public Cloud Module
openEuler
Anolis OS
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo
kernel-livepatch-6_4_0-150700_7_62-rt
kernel-livepatch-6_4_0-150700_53_66-default
kernel-livepatch-SLE15-SP7_Update_18-debugsource
kernel-livepatch-6_4_0-150700_53_66-default-debuginfo
python3-perf-debuginfo
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
kernel-devel
kernel-headers
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
kernel-macros
kernel-default
kernel-64kb
kernel-syms
kernel-default-devel
kernel-default-debugsource
kernel-obs-build-debugsource
kernel-obs-build
kernel-64kb-debugsource
kernel-64kb-devel
kernel-default-devel-debuginfo
kernel-default-debuginfo
kernel-kvmsmall
kernel-default-livepatch
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-default-base
kernel-rt-devel-debuginfo
kernel-source-rt
kernel-devel-rt
kernel-rt
dlm-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
ocfs2-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-rt-devel
kernel-syms-rt
kernel-rt-debugsource
cluster-md-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-zfcpdump-debugsource
kernel-default-livepatch-devel
dlm-kmp-default-debuginfo
kernel-zfcpdump
kernel-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-zfcpdump-debuginfo
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
dlm-kmp-default
gfs2-kmp-default
ocfs2-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
ocfs2-kmp-default
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-default-extra
kernel-default-extra-debuginfo
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure-devel-debuginfo
kernel-azure
kernel-docs
kernel-tools-libs-devel
kernel-tools-libs
kernel-debug-devel
kernel-debug

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_62-rt - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_66-default - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_18-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_66-default-debuginfo - update to 1-150700.15.3.1
python3-perf-debuginfo - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-debugsource - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-debuginfo - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
bpftool-debuginfo - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
bpftool - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-devel - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-headers - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-source - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-tools - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-tools-debuginfo - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-tools-devel - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
perf - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
perf-debuginfo - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
python3-perf - addressed in versions 5.10.0-316.0.0.219, 6.6.0-145.0.13.139, 6.6.0-145.1.12.150
kernel-macros - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-default - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-64kb - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-syms - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-default-devel - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-default-debugsource - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-obs-build - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-64kb-debugsource - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-64kb-devel - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-default-debuginfo - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-source - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-kvmsmall - update to 6.4.0-48.1
kernel-default-livepatch - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-kvmsmall-debuginfo - update to 6.4.0-48.1
kernel-kvmsmall-debugsource - update to 6.4.0-48.1
kernel-devel - addressed in versions 6.4.0-48.1, 6.4.0-150700.53.66.1
kernel-default-base - addressed in versions 6.4.0-48.1.21.25, 6.4.0-150700.53.66.1.150700.17.39.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.62.1
kernel-source-rt - update to 6.4.0-150700.7.62.1
kernel-devel-rt - update to 6.4.0-150700.7.62.1
kernel-rt - update to 6.4.0-150700.7.62.1
dlm-kmp-rt - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.62.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-rt-devel - update to 6.4.0-150700.7.62.1
kernel-syms-rt - update to 6.4.0-150700.7.62.1
kernel-rt-debugsource - update to 6.4.0-150700.7.62.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.62.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.66.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.66.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
kernel-zfcpdump - update to 6.4.0-150700.53.66.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.66.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.66.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.66.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
cluster-md-kmp-default - update to 6.4.0-150700.53.66.1
dlm-kmp-default - update to 6.4.0-150700.53.66.1
gfs2-kmp-default - update to 6.4.0-150700.53.66.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
ocfs2-kmp-default - update to 6.4.0-150700.53.66.1
reiserfs-kmp-default - update to 6.4.0-150700.53.66.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
kernel-default-extra - update to 6.4.0-150700.53.66.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.66.1
kernel-azure-devel - update to 6.4.0-150700.53.66.1
kernel-azure-debuginfo - update to 6.4.0-150700.53.66.1
kernel-azure-debugsource - update to 6.4.0-150700.53.66.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.66.1
kernel-azure - update to 6.4.0-150700.53.66.1
kernel-docs - update to 6.4.0-150700.53.66.2
python3-perf - update to 6.6.102-6
perf - update to 6.6.102-6
kernel-tools-libs-devel - update to 6.6.102-6
kernel-tools-libs - update to 6.6.102-6
kernel-tools - update to 6.6.102-6
kernel-headers - update to 6.6.102-6
kernel-devel - update to 6.6.102-6
kernel-debug-devel - update to 6.6.102-6
kernel-debug - update to 6.6.102-6
kernel - update to 6.6.102-6
bpftool - update to 6.6.102-6

• https://git.kernel.org/stable/c/b854e1c4eff3473b6d3a9ae74129ac5c48bc0b61
• https://git.kernel.org/stable/c/e5a3e3cdd9b3015ae79456c81beebfdbb5246c0f

• Improper Initialization in Linux kernel xfs
• openEuler 24.03 LTS SP1 update for kernel
• openEuler 24.03 LTS update for kernel
• openEuler 22.03 LTS SP4 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Anolis OS update for kernel:6.6