Integer overflow in Linux kernel - CVE-2026-52914

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Main Vulnerability Database Vulnerabilities #VU135458

Integer overflow in Linux kernel - CVE-2026-52914

Published: June 25, 2026


Vulnerability identifier: #VU135458
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-2026-52914
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to an integer overflow in the batman-adv fragment reassembly logic when processing malformed fragment chains. A local user can send malformed fragments to cause a denial of service.


Affected software

Linux kernel
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 High Availability Extension 15
SUSE Linux Enterprise Desktop 15
Ubuntu
SUSE Linux Enterprise Live Patching
Legacy Module
Development Tools Module
Basesystem Module
SUSE Real Time Module
Public Cloud Module
openEuler
linux (Ubuntu package)
linux-lts-xenial (Ubuntu package)
linux-aws (Ubuntu package)
linux-kvm (Ubuntu package)
linux-fips (Ubuntu package)
linux-hwe (Ubuntu package)
linux-gcp (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws-hwe (Ubuntu package)
linux-azure-4.15 (Ubuntu package)
linux-gcp-4.15 (Ubuntu package)
linux-gcp-fips (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-aws-fips (Ubuntu package)
linux-lowlatency (Ubuntu package)
linux-raspi (Ubuntu package)
linux-ibm (Ubuntu package)
linux-oracle (Ubuntu package)
linux-azure-fde (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-realtime (Ubuntu package)
linux-hwe-6.8 (Ubuntu package)
linux-lowlatency-hwe-6.8 (Ubuntu package)
linux-azure-fde-6.8 (Ubuntu package)
linux-azure-6.8 (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-oracle-6.8 (Ubuntu package)
linux-nvidia-lowlatency (Ubuntu package)
linux-gkeop (Ubuntu package)
linux-nvidia-6.8 (Ubuntu package)
linux-gke (Ubuntu package)
linux-ibm-6.8 (Ubuntu package)
linux-xilinx (Ubuntu package)
linux-gcp-6.8 (Ubuntu package)
linux-raspi-realtime (Ubuntu package)
linux-realtime-6.8 (Ubuntu package)
linux-nvidia-6.17 (Ubuntu package)
linux-oem-6.17 (Ubuntu package)
linux-nvidia-bos (Ubuntu package)
linux-gcp-7.0 (Ubuntu package)
linux-azure-7.0 (Ubuntu package)
linux-oracle-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux-nvidia-7.0 (Ubuntu package)
kernel-livepatch-6_4_0-150700_7_67-rt
kernel-livepatch-SLE15-SP7-RT_Update_18-debugsource
kernel-livepatch-6_4_0-150700_7_67-rt-debuginfo
kernel-livepatch-SLE15-SP7_Update_19-debugsource
kernel-livepatch-6_4_0-150700_53_73-default
kernel-livepatch-6_4_0-150700_53_73-default-debuginfo
kernel-devel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-rt-devel-debuginfo
kernel-rt
kernel-source-rt
kernel-devel-rt
kernel-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
kernel-syms-rt
gfs2-kmp-rt-debuginfo
kernel-rt-devel
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
gfs2-kmp-rt
ocfs2-kmp-rt
kernel-macros
kernel-syms
kernel-docs
kernel-default-extra-debuginfo
kernel-default-extra
kernel-default-debuginfo
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-azure
kernel-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-azure-devel
kernel-azure-debugsource
reiserfs-kmp-default
kernel-default-debugsource
kernel-default-devel
kernel-default-devel-debuginfo
kernel-64kb
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-64kb-debuginfo
kernel-default
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
ocfs2-kmp-default
dlm-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default
gfs2-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-obs-build
kernel-obs-build-debugsource
reiserfs-kmp-default-debuginfo
kernel-default-base
linux-oracle-5.4 (Ubuntu package)
linux-azure-5.4 (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-intel-iotg (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
linux-gcp-5.15 (Ubuntu package)

How to mitigate CVE-2026-52914

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux (Ubuntu package) - addressed in versions 3.13.0-217.268, 4.4.0-287.321, 4.15.0-257.269, 5.4.0-234.254~18.04.1, 5.4.0-234.254, 5.4.0-1066.69, 5.4.0-1080.84, 5.4.0-1108.113~18.04.1, 5.4.0-1108.113, 5.4.0-1121.128, 5.4.0-1136.146, 5.4.0-1145.158~18.04.1, 5.4.0-1145.158, 5.4.0-1160.170+fips1, 5.4.0-1162.173~18.04.1, 5.4.0-1162.173, 5.4.0-1165.174~18.04.1, 5.4.0-1165.174, 5.4.0-1167.173, 5.4.0.234.226, 5.4.0.1080.80, 5.4.0.1108.137, 5.4.0.1121.117, 5.4.0.1136.133, 5.4.0.1145.176, 5.4.0.1160.154, 5.4.0.1162.160, 5.4.0.1165.167, 5.4.0.1167.159, 5.15.0-184.194~20.04.1, 5.15.0-184.194, 5.15.0-186.196~20.04.1, 5.15.0-186.196, 5.15.0-1075.79, 5.15.0-1095.103, 5.15.0-1104.109, 5.15.0-1108.114, 5.15.0-1111.120+fips1, 5.15.0-1112.122, 5.15.0-1112.122+fips1, 5.15.0.184.155, 5.15.0.186.166, 5.15.0.1075.78, 5.15.0.1095.94, 5.15.0.1104.100, 5.15.0.1108.107, 5.15.0.1111.115, 5.15.0.1112.102, 5.15.0.1112.109, 6.8.0-137.137, 7.0.0-28.28
linux-lts-xenial (Ubuntu package) - update to 4.4.0-287.321~14.04.1
linux-aws (Ubuntu package) - addressed in versions 4.4.0-1158.164, 4.4.0-1196.211, 4.15.0-1196.209, 5.15.0-186.196+fips1, 5.15.0-1106.110, 5.15.0-1107.108, 5.15.0-1112.119~20.04.1, 5.15.0-1112.119, 5.15.0-1112.119+fips1, 5.15.0.186.109, 5.15.0.1106.103, 5.15.0.1107.107, 5.15.0.1112.108, 5.15.0.1112.115, 6.8.0-1062.65, 7.0.0-1009.9
linux-kvm (Ubuntu package) - addressed in versions 4.4.0-1159.170, 4.15.0-1178.183, 5.4.0-1149.158, 5.4.0.1149.145
linux-fips (Ubuntu package) - addressed in versions 4.4.0-1128.135, 4.15.0-1151.163, 6.8.0-137.137+fips1
linux-hwe (Ubuntu package) - update to 4.15.0-257.269~16.04.1
linux-gcp (Ubuntu package) - addressed in versions 4.15.0-1189.206~16.04.1, 6.8.0-1065.73, 7.0.0-1008.8
linux-azure (Ubuntu package) - addressed in versions 4.15.0-1206.221~14.04.1, 4.15.0-1206.221~16.04.1, 5.15.0-1109.115, 5.15.0-1117.126, 5.15.0.1109.105, 5.15.0.1117.115, 6.8.0-1064.72, 7.0.0-1010.10
linux-aws-hwe (Ubuntu package) - update to 4.15.0-1196.209~16.04.1
linux-azure-4.15 (Ubuntu package) - update to 4.15.0-1206.221
linux-gcp-4.15 (Ubuntu package) - update to 4.15.0-1189.206
linux-gcp-fips (Ubuntu package) - addressed in versions 4.15.0-2097.103, 5.4.0-1165.174+fips1, 5.4.0.1165.107, 6.8.0-1065.73+fips1
linux-azure-fips (Ubuntu package) - addressed in versions 4.15.0-2114.120, 5.15.0-1117.126+fips1, 5.15.0.1117.102, 6.8.0-1064.72+fips1
linux-aws-fips (Ubuntu package) - addressed in versions 4.15.0-2134.140, 5.4.0-1163.174+fips1, 5.4.0.1163.110, 6.8.0-1062.65+fips1
linux-lowlatency (Ubuntu package) - update to 6.8.0-137.137.1
linux-raspi (Ubuntu package) - addressed in versions 5.15.0-1106.109, 5.15.0.1106.104, 6.8.0-1062.66, 7.0.0-1015.15
linux-ibm (Ubuntu package) - addressed in versions 6.8.0-1062.63, 7.0.0-1010.10
linux-oracle (Ubuntu package) - addressed in versions 4.15.0-1158.169~16.04.1, 4.15.0-1158.169, 4.15.0.1158.163, 6.8.0-1059.62, 7.0.0-1008.8
linux-azure-fde (Ubuntu package) - addressed in versions 5.15.0-1117.126, 6.8.0-1063.70, 7.0.0-1009.9
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1060.63, 7.0.0-1016.16
linux-realtime (Ubuntu package) - addressed in versions 6.8.1-1057.58, 7.0.0-28.28.1
linux-hwe-6.8 (Ubuntu package) - update to 6.8.0-138.138~22.04.1
linux-lowlatency-hwe-6.8 (Ubuntu package) - update to 6.8.0-137.137.1~22.04.1
linux-azure-fde-6.8 (Ubuntu package) - update to 6.8.0-1063.70~22.04.1
linux-azure-6.8 (Ubuntu package) - update to 6.8.0-1064.72~22.04.1
linux-aws-6.8 (Ubuntu package) - update to 6.8.0-1062.65~22.04.2
linux-nvidia-tegra (Ubuntu package) - addressed in versions 5.15.0-1053.53, 5.15.0-1064.66, 5.15.0.1053.55, 5.15.0.1064.64, 6.8.0-1031.32
linux-oracle-6.8 (Ubuntu package) - update to 6.8.0-1059.62~22.04.1
linux-nvidia-lowlatency (Ubuntu package) - update to 6.8.0-1060.63.1
linux-gkeop (Ubuntu package) - update to 6.8.0-1047.51
linux-nvidia-6.8 (Ubuntu package) - update to 6.8.0-1060.63~22.04.1
linux-gke (Ubuntu package) - addressed in versions 6.8.0-1060.68, 7.0.0-1003.4
linux-ibm-6.8 (Ubuntu package) - update to 6.8.0-1062.63~22.04.1
linux-xilinx (Ubuntu package) - update to 6.8.0-1034.35
linux-gcp-6.8 (Ubuntu package) - update to 6.8.0-1065.73~22.04.1
linux-raspi-realtime (Ubuntu package) - update to 6.8.0-2051.53
linux-realtime-6.8 (Ubuntu package) - update to 6.8.1-1057.58~22.04.1
linux-nvidia-6.17 (Ubuntu package) - update to 6.17.0-1032.32
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1033.33
linux-nvidia-bos (Ubuntu package) - update to 7.0.0-2016.16
linux-gcp-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-azure-7.0 (Ubuntu package) - update to 7.0.0-1014.14~24.04.1
linux-oracle-7.0 (Ubuntu package) - update to 7.0.0-1011.11~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1009.9
linux-nvidia-7.0 (Ubuntu package) - update to 7.0.0-1016.16~24.04.1
kernel-livepatch-6_4_0-150700_7_67-rt - 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-debuginfo - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7_Update_19-debugsource - 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-6_4_0-150700_53_73-default-debuginfo - update to 1-150700.15.3.4
kernel-devel - update to 5.10.0-337.0.0.238
bpftool - update to 5.10.0-337.0.0.238
bpftool-debuginfo - update to 5.10.0-337.0.0.238
kernel-debuginfo - update to 5.10.0-337.0.0.238
kernel-debugsource - update to 5.10.0-337.0.0.238
kernel - update to 5.10.0-337.0.0.238
python3-perf-debuginfo - update to 5.10.0-337.0.0.238
python3-perf - update to 5.10.0-337.0.0.238
perf-debuginfo - update to 5.10.0-337.0.0.238
perf - update to 5.10.0-337.0.0.238
kernel-tools-devel - update to 5.10.0-337.0.0.238
kernel-tools-debuginfo - update to 5.10.0-337.0.0.238
kernel-tools - update to 5.10.0-337.0.0.238
kernel-source - update to 5.10.0-337.0.0.238
kernel-headers - update to 5.10.0-337.0.0.238
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.67.1
kernel-rt - update to 6.4.0-150700.7.67.1
kernel-source-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
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
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.67.1
gfs2-kmp-rt - update to 6.4.0-150700.7.67.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.67.1
kernel-devel - update to 6.4.0-150700.53.73.1
kernel-macros - update to 6.4.0-150700.53.73.1
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-default-extra-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-extra - update to 6.4.0-150700.53.73.2
kernel-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default-livepatch-devel - update to 6.4.0-150700.53.73.2
kernel-default-livepatch - update to 6.4.0-150700.53.73.2
kernel-azure - 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-devel - update to 6.4.0-150700.53.73.2
kernel-azure-debugsource - update to 6.4.0-150700.53.73.2
reiserfs-kmp-default - update to 6.4.0-150700.53.73.2
kernel-default-debugsource - update to 6.4.0-150700.53.73.2
kernel-default-devel - update to 6.4.0-150700.53.73.2
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-64kb - update to 6.4.0-150700.53.73.2
kernel-64kb-debugsource - update to 6.4.0-150700.53.73.2
kernel-64kb-devel - update to 6.4.0-150700.53.73.2
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.73.2
kernel-64kb-debuginfo - update to 6.4.0-150700.53.73.2
kernel-default - update to 6.4.0-150700.53.73.2
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.73.2
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.73.2
kernel-zfcpdump - update to 6.4.0-150700.53.73.2
ocfs2-kmp-default - update to 6.4.0-150700.53.73.2
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
cluster-md-kmp-default-debuginfo - 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 - update to 6.4.0-150700.53.73.2
gfs2-kmp-default - update to 6.4.0-150700.53.73.2
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.73.2
kernel-obs-build - update to 6.4.0-150700.53.73.2
kernel-obs-build-debugsource - update to 6.4.0-150700.53.73.2
reiserfs-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-oracle-5.4 (Ubuntu package) - update to 5.4.0-1161.171~18.04.1
linux-azure-5.4 (Ubuntu package) - addressed in versions 5.4.0-1167.173~18.04.1, 5.4.0-1167.173+fips1, 5.4.0.1167.103
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1064.66~20.04.1
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1104.106, 5.15.0-1107.113~20.04.1, 5.15.0.1104.108
linux-intel-iotg (Ubuntu package) - addressed in versions 5.15.0-1107.113, 5.15.0.1107.106
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0-1109.115~20.04.1, 5.15.0-1117.126~20.04.1, 5.15.0-1117.126~20.04.2
linux-gcp-5.15 (Ubuntu package) - update to 5.15.0-1112.122~20.04.1

External References

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