In the Linux kernel, the following vulnerability has been resolved:
bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log
It's trivial for user to trigger "verifier log line truncated" warning,
as verifier has a fixed-sized buffer of 1024 bytes (as of now), and there are at
least two pieces of user-provided information that can be output through
this buffer, and both can be arbitrarily sized by user:
- BTF names;
- BTF.ext source code lines strings.
Verifier log buffer should be properly sized for typical verifier state
output. But it's sort-of expected that this buffer won't be long enough
in some circumstances. So let's drop the check. In any case code will
work correctly, at worst truncating a part of a single line output.
CVSS
No CVSS.
References
Configurations
No configuration.
History
No history.
Information
Published : 2025-12-24 13:16
Updated : 2026-06-17 06:46
NVD link : CVE-2023-54145
Mitre link : CVE-2023-54145
CVE.ORG link : CVE-2023-54145
JSON object : View
Products Affected
No product.
CWE
No CWE.