CVE-2023-54139
tracing/user_events: Ensure write index cannot be negative
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
7f5a08c79df35e68f1a43033450c5050f12bc155 < 0489c2b2c3104b89f078dbcec8c744dfc157d3e9 7f5a08c79df35e68f1a43033450c5050f12bc155 < 4fe46b5adf18e3dc606e62c9e6a0413398a17572 7f5a08c79df35e68f1a43033450c5050f12bc155 < fa7f2f5d1739452280c22727c4384a52b72ab5de 7f5a08c79df35e68f1a43033450c5050f12bc155 < cd98c93286a30cc4588dfd02453bec63c2f4acf4
Linux / Linux
5.18
References
git.kernel.org: https://git.kernel.org/stable/c/0489c2b2c3104b89f078dbcec8c744dfc157d3e9 git.kernel.org: https://git.kernel.org/stable/c/4fe46b5adf18e3dc606e62c9e6a0413398a17572 git.kernel.org: https://git.kernel.org/stable/c/fa7f2f5d1739452280c22727c4384a52b72ab5de git.kernel.org: https://git.kernel.org/stable/c/cd98c93286a30cc4588dfd02453bec63c2f4acf4