Improper control of a resource through its lifetime in Linux kernel - CVE-2026-53266

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Main Vulnerability Database Vulnerabilities #VU135488

Improper control of a resource through its lifetime in Linux kernel - CVE-2026-53266

Published: June 26, 2026 / Updated: September 18, 2026


Vulnerability identifier: #VU135488
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-53266
CWE-ID: CWE-664
Exploitation vector: Local access
Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

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

The vulnerability exists due to improper memory handling in the ebtables SNAT target ARP sender hardware address rewrite in net/bridge/netfilter/ebt_snat.c when processing ARP packets in bridge netfilter hooks. A local user can trigger ARP sender hardware address rewriting on a crafted nonlinear skb to cause a denial of service.

Exploitation requires the ARP sender hardware address rewrite path to be reached with a nonlinear skb fragment backed by a splice-imported file page.


Affected software

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
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Development Tools Module
Basesystem Module
SUSE Real Time Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
openEuler
Ubuntu
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-livepatch-6_4_0-150700_7_62-rt
kernel-livepatch-SLE15-SP7-RT_Update_17-debugsource
kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo
kernel-livepatch-6_4_0-150700_53_66-default-debuginfo
kernel-livepatch-6_4_0-150700_53_66-default
kernel-livepatch-SLE15-SP7_Update_18-debugsource
kernel (Red Hat package)
kernel-rt (Red Hat package)
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-debug
kernel-debug-core
kernel-debug-devel
kernel-debug-modules
kernel-debug-modules-extra
kernel-headers
kernel-devel
kernel-abi-stablelists
kernel-doc
python3-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-modules-extra
kernel-modules
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-source
kernel-tools-debuginfo
kernel-tools-devel
perf-debuginfo
python3-perf-debuginfo
kernel-source-rt
kernel-obs-build
kernel-rt
kernel-rt-debugsource
kernel-rt-devel
kernel-rt-devel-debuginfo
kernel-default
kernel-kvmsmall
kernel-default-debugsource
kernel-default-debuginfo
kernel-default-livepatch
kernel-macros
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-default-devel-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-rt-livepatch
kernel-rt-debuginfo
kernel-default-devel
kernel-obs-build-debugsource
kernel-devel-rt
kernel-syms
kernel-64kb
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
dlm-kmp-rt
gfs2-kmp-rt
ocfs2-kmp-rt
cluster-md-kmp-rt-debuginfo
kernel-syms-rt
cluster-md-kmp-rt
ocfs2-kmp-rt-debuginfo
reiserfs-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-64kb-debuginfo
kernel-64kb-devel-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-extra-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
kernel-zfcpdump-debugsource
kernel-default-extra
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure-devel-debuginfo
kernel-azure
kernel-default-livepatch-devel
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-default-base
kernel-docs
linux-nvidia-tegra (Ubuntu package)
kernel-tools-debuginfo (Red Hat package)
kernel-zfcpdump-debuginfo (Red Hat package)
kernel-debuginfo-common-s390x (Red Hat package)
kernel-zfcpdump-devel (Red Hat package)
kernel-debug-debuginfo (Red Hat package)
rv (Red Hat package)
rtla (Red Hat package)
python3-perf (Red Hat package)
libperf-debuginfo (Red Hat package)
perf (Red Hat package)
kernel-zfcpdump-devel-matched (Red Hat package)
kernel-debuginfo-common-ppc64le (Red Hat package)
kernel-64k-debug-debuginfo (Red Hat package)
kernel-64k-debug-devel (Red Hat package)
kernel-64k-debug-devel-matched (Red Hat package)
kernel-64k-debuginfo (Red Hat package)
kernel-64k-devel (Red Hat package)
kernel-64k-devel-matched (Red Hat package)
kernel-debuginfo-common-aarch64 (Red Hat package)
kernel-rt-64k-debug-debuginfo (Red Hat package)
kernel-rt-64k-debuginfo (Red Hat package)
kernel-rt-debuginfo (Red Hat package)
kernel-headers (Red Hat package)
kernel-devel-matched (Red Hat package)
kernel-devel (Red Hat package)
kernel-debuginfo-common-x86_64 (Red Hat package)
kernel-debuginfo (Red Hat package)
kernel-debug-devel-matched (Red Hat package)
kernel-debug-devel (Red Hat package)
kernel-rt-debug-debuginfo (Red Hat package)
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-oracle-7.0 (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-nvidia-7.0 (Ubuntu package)
linux-raspi (Ubuntu package)
linux-nvidia-bos (Ubuntu package)
IBM DataPower Gateway

How to mitigate CVE-2026-53266

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
IBM DataPower Gateway - update to 11.0.0.3
kernel-livepatch-6_4_0-150700_7_62-rt - update to 1-150700.1.3.1
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_53_66-default-debuginfo - update to 1-150700.15.3.1
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 (Red Hat package) - addressed in versions 3.10.0-1160.164.1.el7, 4.18.0-305.209.1.el8_4, 4.18.0-372.217.1.el8_6, 4.18.0-477.169.1.el8_8, 5.14.0-284.194.1.el9_2, 5.14.0-570.143.1.el9_6, 6.12.0-231.20.el10nv
kernel-rt (Red Hat package) - addressed in versions 3.10.0-1160.164.1.rt56.1316.el7, 5.14.0-284.194.1.rt14.479.el9_2
bpftool - update to 4.18.0-553.144.1.0.1
kernel - update to 4.18.0-553.144.1.0.1
kernel-core - update to 4.18.0-553.144.1.0.1
kernel-cross-headers - update to 4.18.0-553.144.1.0.1
kernel-debug - update to 4.18.0-553.144.1.0.1
kernel-debug-core - update to 4.18.0-553.144.1.0.1
kernel-debug-devel - update to 4.18.0-553.144.1.0.1
kernel-debug-modules - update to 4.18.0-553.144.1.0.1
kernel-debug-modules-extra - update to 4.18.0-553.144.1.0.1
kernel-headers - update to 4.18.0-553.144.1.0.1
kernel-devel - update to 4.18.0-553.144.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.144.1.0.1
kernel-doc - update to 4.18.0-553.144.1.0.1
python3-perf - update to 4.18.0-553.144.1.0.1
perf - update to 4.18.0-553.144.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.144.1.0.1
kernel-tools-libs - update to 4.18.0-553.144.1.0.1
kernel-tools - update to 4.18.0-553.144.1.0.1
kernel-modules-extra - update to 4.18.0-553.144.1.0.1
kernel-modules - update to 4.18.0-553.144.1.0.1
kernel - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
bpftool - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
bpftool-debuginfo - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-debuginfo - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-tools - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-debugsource - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-devel - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-headers - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-source - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-tools-debuginfo - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-tools-devel - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
perf - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
perf-debuginfo - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
python3-perf - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
python3-perf-debuginfo - addressed in versions 5.10.0-323.0.0.224, 6.6.0-145.1.20.157
kernel-source-rt - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-obs-build - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-rt - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-rt-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-rt-devel - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-rt-devel-debuginfo - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-default - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-kvmsmall - update to 6.4.0-49.1
kernel-default-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-default-debuginfo - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-default-livepatch - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-devel - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-macros - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-source - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-kvmsmall-debuginfo - update to 6.4.0-49.1
kernel-kvmsmall-debugsource - update to 6.4.0-49.1
kernel-default-devel-debuginfo - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-64kb-devel - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-64kb-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-rt-livepatch - update to 6.4.0-49.1
kernel-rt-debuginfo - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-default-devel - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-devel-rt - addressed in versions 6.4.0-49.1, 6.4.0-150700.7.62.1
kernel-syms - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
kernel-64kb - addressed in versions 6.4.0-49.1, 6.4.0-150700.53.66.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.62.1
dlm-kmp-rt - 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-syms-rt - 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
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
dlm-kmp-default-debuginfo - 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
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.66.1
kernel-default-extra-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
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.66.1
kernel-default-extra - 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-default-livepatch-devel - update to 6.4.0-150700.53.66.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.66.1
kernel-zfcpdump - update to 6.4.0-150700.53.66.1
kernel-default-base - update to 6.4.0-150700.53.66.1.150700.17.39.1
kernel-docs - update to 6.4.0-150700.53.66.2
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1035.38
kernel-tools-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-zfcpdump-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-debuginfo-common-s390x (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-zfcpdump-devel (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-debug-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
rv (Red Hat package) - update to 6.12.0-55.106.1.el10_0
rtla (Red Hat package) - update to 6.12.0-55.106.1.el10_0
python3-perf (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
libperf-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
perf (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-zfcpdump-devel-matched (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-debuginfo-common-ppc64le (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-64k-debug-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-64k-debug-devel (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-64k-debug-devel-matched (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-64k-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-64k-devel (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-64k-devel-matched (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-debuginfo-common-aarch64 (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-rt-64k-debug-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-rt-64k-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-rt-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-headers (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-devel-matched (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-devel (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-debuginfo-common-x86_64 (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
kernel-debug-devel-matched (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-debug-devel (Red Hat package) - addressed in versions 6.12.0-55.106.1.el10_0, 6.12.0-211.59.1.el10_2
kernel-rt-debug-debuginfo (Red Hat package) - update to 6.12.0-55.106.1.el10_0
linux (Ubuntu package) - addressed in versions 7.0.0-31.31, 7.0.0-31.31.1, 7.0.0-31.31~24.04.1, 7.0.0-1006.7, 7.0.0-1011.11~24.04.1, 7.0.0-1012.12, 7.0.0-1012.12~24.04.1
linux-azure (Ubuntu package) - addressed in versions 7.0.0-1011.11, 7.0.0-1014.14
linux-oracle-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-ibm (Ubuntu package) - update to 7.0.0-1013.13
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1013.13
linux-azure-7.0 (Ubuntu package) - update to 7.0.0-1014.14~24.04.1
linux-nvidia (Ubuntu package) - update to 7.0.0-1018.18
linux-nvidia-7.0 (Ubuntu package) - update to 7.0.0-1018.18~24.04.1
linux-raspi (Ubuntu package) - update to 7.0.0-1019.19
linux-nvidia-bos (Ubuntu package) - update to 7.0.0-2018.18

External References

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