Use-after-free in Linux kernel - CVE-2026-23010

Vulnerability identifier: #VU122016

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-23010

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the inet6_addr_del() function in net/ipv6/addrconf.c. A local user can escalate privileges on the system.

Linux kernel
Debian Linux
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Basesystem Module
SUSE Real Time Module
Development Tools Module
openSUSE Leap
Ubuntu
openEuler
kernel-livepatch-SLE15-SP6_Update_20-debugsource
kernel-livepatch-6_4_0-150600_23_87-default-debuginfo
kernel-livepatch-6_4_0-150600_23_87-default
kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo
kernel-livepatch-6_4_0-150700_7_34-rt
kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource
kernel-livepatch-SLE15-SP7_Update_10-debugsource
kernel-livepatch-6_4_0-150700_53_34-default
kernel-livepatch-6_4_0-150700_53_34-default-debuginfo
linux (Debian package)
dtb-hisilicon
kernel-zfcpdump-debuginfo
dtb-amazon
kernel-64kb-optional-debuginfo
dtb-freescale
dtb-qcom
gfs2-kmp-64kb
kselftests-kmp-64kb-debuginfo
cluster-md-kmp-64kb
gfs2-kmp-64kb-debuginfo
dtb-nvidia
dtb-broadcom
dtb-mediatek
dtb-marvell
kernel-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel-debuginfo
kernel-64kb-devel
dtb-amlogic
dtb-aarch64
kernel-zfcpdump-debugsource
kernel-64kb-extra-debuginfo
dtb-cavium
kernel-64kb
dtb-arm
dtb-rockchip
reiserfs-kmp-64kb
kselftests-kmp-64kb
dlm-kmp-64kb-debuginfo
dtb-xilinx
dtb-exynos
ocfs2-kmp-64kb
dtb-apple
kernel-64kb-optional
kernel-64kb-extra
dlm-kmp-64kb
ocfs2-kmp-64kb-debuginfo
dtb-socionext
dtb-allwinner
dtb-sprd
reiserfs-kmp-64kb-debuginfo
dtb-amd
dtb-altera
dtb-apm
cluster-md-kmp-64kb-debuginfo
dtb-renesas
dtb-lg
kernel-default-vdso-debuginfo
reiserfs-kmp-default
ocfs2-kmp-default
kernel-default-extra
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-debug-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso
kernel-kvmsmall
kernel-debug-debugsource
kernel-debug-devel
kernel-debug-devel-debuginfo
kernel-debug-debuginfo
kernel-debug
kernel-devel
kernel-docs-html
kernel-macros
kernel-source-vanilla
kernel-source
kernel-docs
kernel-default-debuginfo
kernel-default
kernel-default-livepatch-devel
kernel-zfcpdump
kernel-default-optional-debuginfo
kernel-obs-qa
kernel-default-devel
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
kselftests-kmp-default-debuginfo
kselftests-kmp-default
kernel-syms
cluster-md-kmp-default-debuginfo
kernel-default-optional
dlm-kmp-default-debuginfo
kernel-obs-build
dlm-kmp-default
kernel-default-devel-debuginfo
kernel-default-livepatch
reiserfs-kmp-default-debuginfo
kernel-default-debugsource
kernel-obs-build-debugsource
gfs2-kmp-default
kernel-default-extra-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-base-rebuild
kernel-default-base
kernel-source-rt
kernel-devel-rt
cluster-md-kmp-rt-debuginfo
kernel-rt-debuginfo
gfs2-kmp-rt
kernel-syms-rt
kernel-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt-devel
ocfs2-kmp-rt
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
dlm-kmp-rt-debuginfo
dlm-kmp-rt
kernel-azure
kernel-azure-debuginfo
kernel-azure-devel
kernel-syms-azure
kernel-azure-debugsource
kernel-azure-devel-debuginfo
kernel-source-azure
kernel-devel-azure
perf-debuginfo
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-headers
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
python3-perf
python3-perf-debuginfo
kernel-extra-modules
linux-fips (Ubuntu package)
linux (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-nvidia-6.8 (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-fde-6.17 (Ubuntu package)
linux-gcp-6.17 (Ubuntu package)
linux-oracle-6.17 (Ubuntu package)
linux-azure-6.17 (Ubuntu package)
linux-oem-6.17 (Ubuntu package)
linux-nvidia-6.17 (Ubuntu package)

Install update from vendor's repository.

kernel-livepatch-SLE15-SP6_Update_20-debugsource - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_87-default-debuginfo - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_87-default - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150700_7_34-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_34-rt - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7-RT_Update_10-debugsource - update to 1-150700.1.3.1
kernel-livepatch-SLE15-SP7_Update_10-debugsource - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_34-default - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_34-default-debuginfo - update to 1-150700.15.3.1
linux (Debian package) - addressed in versions 6.1.162-1, 6.12.69-1
dtb-hisilicon - update to 6.4.0-150600.23.87.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
dtb-amazon - update to 6.4.0-150600.23.87.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.87.1
dtb-freescale - update to 6.4.0-150600.23.87.1
dtb-qcom - update to 6.4.0-150600.23.87.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.87.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.87.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-nvidia - update to 6.4.0-150600.23.87.1
dtb-broadcom - update to 6.4.0-150600.23.87.1
dtb-mediatek - update to 6.4.0-150600.23.87.1
dtb-marvell - update to 6.4.0-150600.23.87.1
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
dtb-amlogic - update to 6.4.0-150600.23.87.1
dtb-aarch64 - update to 6.4.0-150600.23.87.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.87.1
dtb-cavium - update to 6.4.0-150600.23.87.1
kernel-64kb - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
dtb-arm - update to 6.4.0-150600.23.87.1
dtb-rockchip - update to 6.4.0-150600.23.87.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.87.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.87.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-xilinx - update to 6.4.0-150600.23.87.1
dtb-exynos - update to 6.4.0-150600.23.87.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.87.1
dtb-apple - update to 6.4.0-150600.23.87.1
kernel-64kb-optional - update to 6.4.0-150600.23.87.1
kernel-64kb-extra - update to 6.4.0-150600.23.87.1
dlm-kmp-64kb - update to 6.4.0-150600.23.87.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-socionext - update to 6.4.0-150600.23.87.1
dtb-allwinner - update to 6.4.0-150600.23.87.1
dtb-sprd - update to 6.4.0-150600.23.87.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-amd - update to 6.4.0-150600.23.87.1
dtb-altera - update to 6.4.0-150600.23.87.1
dtb-apm - update to 6.4.0-150600.23.87.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.87.1
dtb-renesas - update to 6.4.0-150600.23.87.1
dtb-lg - update to 6.4.0-150600.23.87.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.87.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
ocfs2-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.87.1
kernel-debug-vdso - update to 6.4.0-150600.23.87.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.87.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.87.1
kernel-default-vdso - update to 6.4.0-150600.23.87.1
kernel-kvmsmall - update to 6.4.0-150600.23.87.1
kernel-debug-debugsource - update to 6.4.0-150600.23.87.1
kernel-debug-devel - update to 6.4.0-150600.23.87.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.87.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.87.1
kernel-debug - update to 6.4.0-150600.23.87.1
kernel-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-docs-html - update to 6.4.0-150600.23.87.1
kernel-macros - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-source-vanilla - update to 6.4.0-150600.23.87.1
kernel-source - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-docs - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.87.1
kernel-obs-qa - update to 6.4.0-150600.23.87.1
kernel-default-devel - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
gfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
cluster-md-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.87.1
kselftests-kmp-default - update to 6.4.0-150600.23.87.1
kernel-syms - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
cluster-md-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-optional - update to 6.4.0-150600.23.87.1
dlm-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
dlm-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
gfs2-kmp-default - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
ocfs2-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.87.1, 6.4.0-150700.53.34.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.87.1.150600.12.40.1
kernel-default-base - addressed in versions 6.4.0-150600.23.87.1.150600.12.40.1, 6.4.0-150700.53.34.1.150700.17.23.1
kernel-source-rt - update to 6.4.0-150700.7.34.1
kernel-devel-rt - update to 6.4.0-150700.7.34.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.34.1
gfs2-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-syms-rt - update to 6.4.0-150700.7.34.1
kernel-rt - update to 6.4.0-150700.7.34.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.34.1
kernel-rt-devel - update to 6.4.0-150700.7.34.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.34.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-rt-debugsource - update to 6.4.0-150700.7.34.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.34.1
dlm-kmp-rt - update to 6.4.0-150700.7.34.1
kernel-azure - addressed in versions 6.4.0-150700.20.27.1, 6.4.0-150700.53.34.1
kernel-azure-debuginfo - addressed in versions 6.4.0-150700.20.27.1, 6.4.0-150700.53.34.1
kernel-azure-devel - addressed in versions 6.4.0-150700.20.27.1, 6.4.0-150700.53.34.1
kernel-syms-azure - update to 6.4.0-150700.20.27.1
kernel-azure-debugsource - addressed in versions 6.4.0-150700.20.27.1, 6.4.0-150700.53.34.1
kernel-azure-devel-debuginfo - addressed in versions 6.4.0-150700.20.27.1, 6.4.0-150700.53.34.1
kernel-source-azure - update to 6.4.0-150700.20.27.1
kernel-devel-azure - update to 6.4.0-150700.20.27.1
perf-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
bpftool - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
bpftool-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-debugsource - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-devel - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-headers - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-source - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-tools - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-tools-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-tools-devel - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
perf - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
python3-perf - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
python3-perf-debuginfo - addressed in versions 6.6.0-142.0.0.124, 6.6.0-142.0.0.136, 6.6.0-142.0.0.137
kernel-extra-modules - update to 6.6.0-142.0.0.137
linux-fips (Ubuntu package) - update to 6.8.0-116.116+fips1
linux (Ubuntu package) - addressed in versions 6.8.0-117.117, 6.8.0-117.117.1, 6.8.0-117.117.1~22.04.1, 6.8.0-1041.44, 6.8.0-1054.60, 6.8.0-1055.56, 6.8.0-1055.56~22.04.1, 6.8.0-1055.58+fips1, 6.8.0-1056.60, 6.8.0-1058.61, 6.8.0-1058.61+fips1, 6.8.0-2045.46, 6.8.1-1051.52, 6.8.1-1051.52~22.04.1
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1024.24
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1054.57, 6.8.0-1054.57.1
linux-nvidia-6.8 (Ubuntu package) - update to 6.8.0-1054.57~22.04.1
linux-azure (Ubuntu package) - update to 6.8.0-1056.62
linux-azure-fde-6.17 (Ubuntu package) - update to 6.17.0-1018.18~24.04.1
linux-gcp-6.17 (Ubuntu package) - addressed in versions 6.17.0-1018.20~24.04.1, 6.17.0-1021.24~24.04.1
linux-oracle-6.17 (Ubuntu package) - addressed in versions 6.17.0-1019.19~24.04.3, 6.17.0-1019.19~24.04.3+1
linux-azure-6.17 (Ubuntu package) - update to 6.17.0-1021.21~24.04.1
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1030.30
linux-nvidia-6.17 (Ubuntu package) - update to 6.17.0-1031.31

• https://git.kernel.org/stable/c/2684610a9c9c53f262fd864fa5c407e79f304804
• https://git.kernel.org/stable/c/8b6dcb565e419846bd521e31d5e1f98e4d0e1179
• https://git.kernel.org/stable/c/ddf96c393a33aef4887e2e406c76c2f8cda1419c

• Use-after-free in Linux kernel ipv6
• Debian update for linux
• Debian update for linux
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• openEuler 24.03 LTS update for kernel
• openEuler 24.03 LTS SP2 update for kernel
• openEuler 24.03 LTS SP1 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux
• Ubuntu update for linux-nvidia
• Ubuntu update for linux-fips
• Ubuntu update for linux-nvidia-tegra
• Ubuntu update for linux-nvidia-6.8
• Ubuntu update for linux-azure
• Ubuntu update for linux-gcp-6.17
• Ubuntu update for linux-oem-6.17
• Ubuntu update for linux-azure-fde-6.17
• Ubuntu update for linux-azure-6.17
• Ubuntu update for linux-oracle-6.17
• Ubuntu update for linux-nvidia-6.17