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CVE-2025-37938 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Verify event formats that have "%*p.." The trace event verifier checks the formats of trace events to make sure that they do not point at memory that is not in the trace event itself or in data that will never be freed. If an event references data that was allocated when the event triggered and that same data is freed before the event is read, then the kernel can crash by reading freed memory. The verifier runs at boot up (or module load) and scans the print formats of the events and checks their arguments to make sure that dereferenced pointers are safe. If the format uses "%*p.." the verifier will ignore it, and that could be dangerous. Cover this case as well. Also add to the sample code a use case of "%*pbl".


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
https://git.kernel.org/stable/c/03127354027508d076073b020d3070990fd6a958
https://git.kernel.org/stable/c/04b80d45ecfaf780981d6582899e3ab205e4aa08
https://git.kernel.org/stable/c/4d11fac941d83509be4e6a21038281d6d96da50c
https://git.kernel.org/stable/c/6854c87ac823181c810f8c07489ba543260c0023
https://git.kernel.org/stable/c/c7204fd1758c0caf1938e8a59809a1fdf28a8114
https://git.kernel.org/stable/c/ea8d7647f9ddf1f81e2027ed305299797299aa03

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-37938
NVD Published Date:
05/20/2025
NVD Last Modified:
05/21/2025
Source:
kernel.org