Resource management error in Linux kernel - CVE-2025-39894

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Main Vulnerability Database Vulnerabilities #VU116259

Resource management error in Linux kernel - CVE-2025-39894

Published: October 1, 2025


Vulnerability identifier: #VU116259
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-2025-39894
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the br_nf_local_in() function in net/bridge/br_netfilter_hooks.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Ubuntu
openEuler
linux-aws-fips (Ubuntu package)
linux (Ubuntu package)
linux-gcp (Ubuntu package)
linux-kvm (Ubuntu package)
linux-intel-iot-realtime (Ubuntu package)
linux-raspi (Ubuntu package)
linux-azure-fips (Ubuntu package)
linux-azure (Ubuntu package)
linux-azure-5.15 (Ubuntu package)
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo
linux-xilinx (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-aws-6.8 (Ubuntu package)
linux-azure-6.8 (Ubuntu package)
linux-realtime (Ubuntu package)

How to mitigate CVE-2025-39894

Install update from vendor's repository.

linux-aws-fips (Ubuntu package) - addressed in versions 5.15.0.163.94, 5.15.0-163.173+fips1, 5.15.0.1097.87, 5.15.0.1097.93, 5.15.0-1097.104+fips1, 5.15.0-1097.106+fips1, 6.8.0-106.106+fips1, 6.8.0-1050.53+fips1, 6.8.0-1052.55+fips1
linux (Ubuntu package) - addressed in versions 5.15.0.163.140, 5.15.0.163.158, 5.15.0-163.173, 5.15.0-163.173~20.04.1, 5.15.0.163.173~20.04.1, 5.15.0-1038.38, 5.15.0.1038.40, 5.15.0-1049.49, 5.15.0.1049.49, 5.15.0.1049.49~20.04.1, 5.15.0-1049.49~20.04.1, 5.15.0.1061.64, 5.15.0-1061.65, 5.15.0.1091.87, 5.15.0-1091.94, 5.15.0-1091.94~20.04.1, 5.15.0.1091.94~20.04.1, 5.15.0.1092.92, 5.15.0-1092.93, 5.15.0.1092.98~20.04.1, 5.15.0-1092.98~20.04.1, 5.15.0.1094.90, 5.15.0-1094.100, 5.15.0-1094.100~20.04.1, 5.15.0.1094.100~20.04.1, 5.15.0.1097.100, 5.15.0-1097.104, 5.15.0.1097.104~20.04.1, 5.15.0-1097.104~20.04.1, 5.15.0.1097.106~20.04.1, 5.15.0-1097.106~20.04.1, 6.8.0-106.106, 6.8.0-106.106.1, 6.8.0-106.106.1~22.04.1, 6.8.0-106.106~22.04.1, 6.8.0-1035.38, 6.8.0-1047.48, 6.8.0-1047.48~22.04.1, 6.8.0-1048.53, 6.8.0-1049.49, 6.8.0-1049.49~22.04.1, 6.8.0-1050.53, 6.8.0-1052.55, 6.8.0-1052.55~22.04.1
linux-gcp (Ubuntu package) - addressed in versions 5.15.0.1080.79, 5.15.0-1080.88, 5.15.0.1093.92, 5.15.0-1093.99, 5.15.0.1097.93, 5.15.0-1097.106
linux-kvm (Ubuntu package) - addressed in versions 5.15.0.1089.85, 5.15.0-1089.94
linux-intel-iot-realtime (Ubuntu package) - addressed in versions 5.15.0-1089.91, 5.15.0.1089.93, 5.15.0.1096.100, 5.15.0-1096.105
linux-raspi (Ubuntu package) - addressed in versions 5.15.0.1091.89, 5.15.0-1091.94, 6.8.0-1050.54, 6.8.0-2040.41
linux-azure-fips (Ubuntu package) - addressed in versions 5.15.0.1101.86, 5.15.0-1101.110+fips1, 6.8.0-1052.58+fips1
linux-azure (Ubuntu package) - addressed in versions 5.15.0.1101.99, 5.15.0-1101.110, 6.8.0-1051.57
linux-azure-5.15 (Ubuntu package) - addressed in versions 5.15.0-1102.111~20.04.1, 5.15.0.1102.111~20.04.1
kernel - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
bpftool - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
bpftool-debuginfo - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-debuginfo - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-debugsource - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-devel - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-headers - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-source - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-tools - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-tools-debuginfo - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
kernel-tools-devel - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
perf - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
perf-debuginfo - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
python3-perf - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
python3-perf-debuginfo - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
linux-xilinx (Ubuntu package) - update to 6.8.0-1029.30
linux-nvidia (Ubuntu package) - addressed in versions 6.8.0-1049.52, 6.8.0-1049.52.1, 6.8.0-1049.52~22.04.1
linux-aws-6.8 (Ubuntu package) - update to 6.8.0-1050.53~22.04.1
linux-azure-6.8 (Ubuntu package) - update to 6.8.0-1051.57~22.04.1
linux-realtime (Ubuntu package) - addressed in versions 6.8.1-1045.46, 6.8.1-1045.46~22.04.1

External References

Related Security Bulletins