Memory leak in Linux kernel - CVE-2026-22994

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU121972

Memory leak in Linux kernel - CVE-2026-22994

Published: January 23, 2026


Vulnerability identifier: #VU121972
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-2026-22994
CWE-ID: CWE-401
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 memory leak within the bpf_prog_test_run_xdp() function in net/bpf/test_run.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
Debian Linux
Ubuntu
openEuler
linux (Debian package)
kernel-debugsource
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-devel
kernel-headers
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo
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)

How to mitigate CVE-2026-22994

Install update from vendor's repository.

linux (Debian package) - addressed in versions 6.1.162-1, 6.12.69-1
kernel-debugsource - addressed in versions 6.6.0-145.0.12.138, 6.6.0-145.1.12.150
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-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-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

External References

Related Security Bulletins