CVEvulnerability
CVE-2023-54139
7.8 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-12-24
- Last modified
- 2026-08-04
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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.
References
- 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/cd98c93286a30cc4588dfd02453bec63c2f4acf4 git.kernel.org
- https://git.kernel.org/stable/c/fa7f2f5d1739452280c22727c4384a52b72ab5de git.kernel.org