CVE-2023-54145
kernel: Linux kernel: BPF verifier log truncation via crafted user input
Severity
LowRed Hat Product Security
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 · 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE-410 · Insufficient Resource Pool