Double free in Linux kernel - CVE-2026-53009

Vulnerability identifier: #VU135349

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-2026-53009

CWE-ID: CWE-415

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 a double free in ice_xmit_frame_ring() and tx ring buffer cleanup when handling transmit error paths and interface shutdown. A local user can trigger transmit checksum or tso failure conditions and then bring the interface down to cause a denial of service.

The issue occurs because a tx_buf entry can remain marked as valid and continue to reference an skb that was already freed in the error path.

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
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Anolis OS
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
openEuler
Ubuntu
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource
kernel-livepatch-6_4_0-150700_7_67-rt
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo
kernel-livepatch-6_4_0-150700_53_73-default
kernel-livepatch-SLE15-SP7_Update_19-debugsource
kernel (Red Hat package)
kernel-debug-modules-extra
kernel-doc
kernel-tools-libs
kernel-tools
kernel-modules-extra
kernel-modules
kernel-headers
kernel-devel
kernel-debug-modules
kernel-debug-devel
kernel-debug-core
kernel-debug
kernel-cross-headers
kernel-core
kernel
bpftool
perf
kernel-tools-libs-devel
kernel-abi-stablelists
python3-perf
kernel-source
python3-perf-debuginfo
perf-debuginfo
kernel-tools-devel
kernel-tools-debuginfo
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
kernel-source-rt
ocfs2-kmp-rt
kernel-rt
kernel-devel-rt
kernel-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
kernel-syms-rt
cluster-md-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-rt-devel-debuginfo
kernel-syms
kernel-docs
kernel-macros
reiserfs-kmp-default-debuginfo
kernel-azure-debugsource
kernel-azure-devel
kernel-zfcpdump-debugsource
dlm-kmp-default
cluster-md-kmp-default-debuginfo
kernel-default-debuginfo
kernel-default-devel
dlm-kmp-default-debuginfo
ocfs2-kmp-default
kernel-zfcpdump
kernel-zfcpdump-debuginfo
cluster-md-kmp-default
kernel-default
kernel-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-64kb
kernel-default-devel-debuginfo
kernel-default-extra-debuginfo
kernel-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-azure
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-default-extra
gfs2-kmp-default
kernel-default-debugsource
reiserfs-kmp-default
kernel-obs-build-debugsource
kernel-obs-build
ocfs2-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-default-base
linux (Ubuntu package)
linux-ibm (Ubuntu package)
linux-aws (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux-azure (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource - update to 1-150700.1.5.1
kernel-livepatch-6_4_0-150700_7_67-rt - update to 1-150700.1.5.1
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_73-default - update to 1-150700.15.3.4
kernel-livepatch-SLE15-SP7_Update_19-debugsource - update to 1-150700.15.3.4
kernel (Red Hat package) - addressed in versions 4.18.0-553.155.1.el8_10, 6.12.0-211.37.1.el10_2
kernel-debug-modules-extra - update to 4.18.0-553.155.1.0.1
kernel-doc - update to 4.18.0-553.155.1.0.1
kernel-tools-libs - update to 4.18.0-553.155.1.0.1
kernel-tools - update to 4.18.0-553.155.1.0.1
kernel-modules-extra - update to 4.18.0-553.155.1.0.1
kernel-modules - update to 4.18.0-553.155.1.0.1
kernel-headers - update to 4.18.0-553.155.1.0.1
kernel-devel - update to 4.18.0-553.155.1.0.1
kernel-debug-modules - update to 4.18.0-553.155.1.0.1
kernel-debug-devel - update to 4.18.0-553.155.1.0.1
kernel-debug-core - update to 4.18.0-553.155.1.0.1
kernel-debug - update to 4.18.0-553.155.1.0.1
kernel-cross-headers - update to 4.18.0-553.155.1.0.1
kernel-core - update to 4.18.0-553.155.1.0.1
kernel - update to 4.18.0-553.155.1.0.1
bpftool - update to 4.18.0-553.155.1.0.1
perf - update to 4.18.0-553.155.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.155.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.155.1.0.1
python3-perf - update to 4.18.0-553.155.1.0.1
kernel-source - update to 5.10.0-325.0.0.226
python3-perf-debuginfo - update to 5.10.0-325.0.0.226
python3-perf - update to 5.10.0-325.0.0.226
perf-debuginfo - update to 5.10.0-325.0.0.226
perf - update to 5.10.0-325.0.0.226
kernel-tools-devel - update to 5.10.0-325.0.0.226
kernel-tools-debuginfo - update to 5.10.0-325.0.0.226
kernel-tools - update to 5.10.0-325.0.0.226
kernel-headers - update to 5.10.0-325.0.0.226
kernel-devel - update to 5.10.0-325.0.0.226
kernel-debugsource - update to 5.10.0-325.0.0.226
kernel-debuginfo - update to 5.10.0-325.0.0.226
bpftool-debuginfo - update to 5.10.0-325.0.0.226
bpftool - update to 5.10.0-325.0.0.226
kernel - update to 5.10.0-325.0.0.226
kernel-source-rt - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-rt - update to 6.4.0-150700.7.67.1
kernel-devel-rt - update to 6.4.0-150700.7.67.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.67.1
dlm-kmp-rt - update to 6.4.0-150700.7.67.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-rt-debugsource - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
kernel-syms-rt - update to 6.4.0-150700.7.67.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
kernel-rt-devel - update to 6.4.0-150700.7.67.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.67.1
kernel-syms - update to 6.4.0-150700.53.73.1
kernel-docs - update to 6.4.0-150700.53.73.1
kernel-source - update to 6.4.0-150700.53.73.1
kernel-devel - update to 6.4.0-150700.53.73.1
kernel-macros - update to 6.4.0-150700.53.73.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-debugsource - update to 6.4.0-150700.53.73.2
kernel-azure-devel - update to 6.4.0-150700.53.73.2
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.73.2
dlm-kmp-default - update to 6.4.0-150700.53.73.2
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-devel - update to 6.4.0-150700.53.73.2
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
ocfs2-kmp-default - update to 6.4.0-150700.53.73.2
kernel-zfcpdump - update to 6.4.0-150700.53.73.2
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.73.2
cluster-md-kmp-default - update to 6.4.0-150700.53.73.2
kernel-default - update to 6.4.0-150700.53.73.2
kernel-64kb-debuginfo - update to 6.4.0-150700.53.73.2
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-64kb-devel - update to 6.4.0-150700.53.73.2
kernel-64kb-debugsource - update to 6.4.0-150700.53.73.2
kernel-64kb - update to 6.4.0-150700.53.73.2
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-azure - update to 6.4.0-150700.53.73.2
kernel-default-livepatch - update to 6.4.0-150700.53.73.2
kernel-default-livepatch-devel - update to 6.4.0-150700.53.73.2
kernel-default-extra - update to 6.4.0-150700.53.73.2
gfs2-kmp-default - update to 6.4.0-150700.53.73.2
kernel-default-debugsource - update to 6.4.0-150700.53.73.2
reiserfs-kmp-default - update to 6.4.0-150700.53.73.2
kernel-obs-build-debugsource - update to 6.4.0-150700.53.73.2
kernel-obs-build - update to 6.4.0-150700.53.73.2
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-base - update to 6.4.0-150700.53.73.2.150700.17.41.4
linux (Ubuntu package) - addressed in versions 7.0.0-28.28, 7.0.0-28.28.1, 7.0.0-1003.4, 7.0.0-1008.8
linux-ibm (Ubuntu package) - addressed in versions 7.0.0-1008.8, 7.0.0-1010.10
linux-aws (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1015.15
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1009.9
linux-azure (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1010.10

• https://git.kernel.org/stable/c/1a303baa715e6b78d6a406aaf335f87ff35acfcd
• https://git.kernel.org/stable/c/4c08fc2119ef0281cfa2cee007acf0a251be55f2

• Double free in Linux kernel intel ice driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux
• Red Hat Enterprise Linux 10 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux-ibm
• Ubuntu update for linux-azure
• openEuler 22.03 LTS SP4 update for kernel
• Ubuntu update for linux-aws
• Red Hat Enterprise Linux 8 update for kernel
• Anolis OS update for kernel:4.18