CVE-2023-54139

In the Linux kernel, the following vulnerability has been resolved: tracing/user_events: Ensure write index cannot be negative The write index indicates which event the data is for and accesses a per-file array. The index is passed by user processes during write() calls as the first 4 bytes. Ensure that it cannot be negative by returning -EINVAL to prevent out of bounds accesses. Update ftrace self-test to ensure this occurs properly.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0489c2b2c3104b89f078dbcec8c744dfc157d3e9
https://git.kernel.org/stable/c/4fe46b5adf18e3dc606e62c9e6a0413398a17572
https://git.kernel.org/stable/c/cd98c93286a30cc4588dfd02453bec63c2f4acf4
https://git.kernel.org/stable/c/fa7f2f5d1739452280c22727c4384a52b72ab5de

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-24 13:16

Updated : 2026-08-04 10:19

NVD link : CVE-2023-54139

Mitre link : CVE-2023-54139

CVE.ORG link : CVE-2023-54139

JSON object : View

Products Affected

No product.

CWE

No CWE.

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