CVE-2023-54139 — tracing/user_events: Ensure write index cannot be negative
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 i…
Published: 2025-12-24 · CVSS: 7.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7