CVE Database›Document archive›CVE-2023-54145

CVE-2023-54145

kernel: Linux kernel: BPF verifier log truncation via crafted user input

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · December 24, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) verifier log. A local user can exploit this by providing excessively long BPF Type Format (BTF) names or BTF.ext source code line strings. This can lead to the truncation of a single verifier log line, potentially obscuring important debugging information. While the kernel code continues to function correctly, this issue represents a minor denial of service affecting the logging mechanism.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-410 · Insufficient Resource Pool