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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-68816 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: fw_tracer, Validate format string parameters Add validation for format string parameters in the firmware tracer to prevent potential security vulnerabilities and crashes from malformed format strings received from firmware. The firmware tracer receives format strings from the device firmware and uses them to format trace messages. Without proper validation, bad firmware could provide format strings with invalid format specifiers (e.g., %s, %p, %n) that could lead to crashes, or other undefined behavior. Add mlx5_tracer_validate_params() to validate that all format specifiers in trace strings are limited to safe integer/hex formats (%x, %d, %i, %u, %llx, %lx, etc.). Reject strings containing other format types that could be used to access arbitrary memory or cause crashes. Invalid format strings are added to the trace output for visibility with "BAD_FORMAT: " prefix.


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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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d kernel.org
https://git.kernel.org/stable/c/45bd283b1d69e2c97cddcb9956f0e0261fc4efd7 kernel.org
https://git.kernel.org/stable/c/768d559f466cdd72849110a7ecd76a21d52dcfe3 kernel.org
https://git.kernel.org/stable/c/8ac688c0e430dab19f6a9b70df94b1f635612c1a kernel.org
https://git.kernel.org/stable/c/8c35c2448086870509ede43947845be0833251f0 kernel.org
https://git.kernel.org/stable/c/95624b731c490a4b849844269193a233d6d556a0 kernel.org
https://git.kernel.org/stable/c/b35966042d20b14e2d83330049f77deec5229749 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-68816
NVD Published Date:
01/13/2026
NVD Last Modified:
04/14/2026
Source:
kernel.org