Answer in brief
CVE-2023-54139 records a High severity (CVSS 7.8) vulnerability in tracing/user_events: Ensure write index cannot be negative. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7f5a08c79df35e68f1a43033450c5050f12bc155 <0489c2b2c3104b89f078dbcec8c744dfc157d3e9 || >=7f5a08c79df35e68f1a43033450c5050f12bc155 <4fe46b5adf18e3dc606e62c9e6a0413398a17572 || >=7f5a08c79df35e68f1a43033450c5050f12bc155 <fa7f2f5d1739452280c22727c4384a52b72ab5de || >=7f5a08c79df35e68f1a43033450c5050f12bc155 <cd98c93286a30cc4588dfd02453bec63c2f4acf4 | 0489c2b2c3104b89f078dbcec8c744dfc157d3e9, 4fe46b5adf18e3dc606e62c9e6a0413398a17572, fa7f2f5d1739452280c22727c4384a52b72ab5de, cd98c93286a30cc4588dfd02453bec63c2f4acf4 |
| Linux/Linuxgeneric | 5.18 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-54139 records a High severity (CVSS 7.8) vulnerability in tracing/user_events: Ensure write index cannot be negative. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7f5a08c79df35e68f1a43033450c5050f12bc155 <0489c2b2c3104b89f078dbcec8c744dfc157d3e9 || >=7f5a08c79df35e68f1a43033450c5050f12bc155 <4fe46b5adf18e3dc606e62c9e6a0413398a17572 || >=7f5a08c79df35e68f1a43033450c5050f12bc155 <fa7f2f5d1739452280c22727c4384a52b72ab5de || >=7f5a08c79df35e68f1a43033450c5050f12bc155 <cd98c93286a30cc4588dfd02453bec63c2f4acf4 | 0489c2b2c3104b89f078dbcec8c744dfc157d3e9, 4fe46b5adf18e3dc606e62c9e6a0413398a17572, fa7f2f5d1739452280c22727c4384a52b72ab5de, cd98c93286a30cc4588dfd02453bec63c2f4acf4 |
| Linux/Linuxgeneric | 5.18 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.