net/mlx5: fw_tracer, Validate format string parameters (Linux Linux)

CVE-2025-68816
Not available

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 14 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

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.

Weaknesses (CWE)

  • CWE-134 — Use of Externally-Controlled Format String

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 70dd6fdb8987b14f7b6105f6be0617299e459398 < 95624b731c490a4b849844269193a233d6d556a0 ; affected 70dd6fdb8987b14f7b6105f6be0617299e459398 < 768d559f466cdd72849110a7ecd76a21d52dcfe3 ; affected 70dd6fdb8987b14f7b6105f6be0617299e459398 < 38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d ; affected 70dd6fdb8987b14f7b6105f6be0617299e459398 < 8ac688c0e430dab19f6a9b70df94b1f635612c1a ; affected 70dd6fdb8987b14f7b6105f6be0617299e459398 < 45bd283b1d69e2c97cddcb9956f0e0261fc4efd7 ; affected 70dd6fdb8987b14f7b6105f6be0617299e459398 < 8c35c2448086870509ede43947845be0833251f0
Linux · Linuxaffected 4.19 ; unaffected 0 < 4.19 ; unaffected 5.10.248 ≤ 5.10.* ; unaffected 5.15.198 ≤ 5.15.* ; unaffected 6.1.160 ≤ 6.1.* ; unaffected 6.6.120 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD