Umbra Wiki weakness weakness/CWE-572
Back to wiki

CWE-572 — Call to Thread run() instead of start()

provenance: imported · CWE: CWE-572

CWE-572: Call to Thread run() instead of start()

MITRE CWE weakness

Kind Weakness
Abstraction Variant
Status Draft
Likelihood of exploit

Description

The product calls a thread's run() method instead of calling start(), which causes the code to run in the thread of the caller instead of the callee.

In most cases a direct call to a Thread object's run() method is a bug. The programmer intended to begin a new thread of control, but accidentally called run() instead of start(), so the run() method will execute in the caller's thread of control.

Common consequences

  • Other: Quality Degradation, Varies by Context

Mitigations

Implementation — Use the start() method instead of the run() method.

References

  • CWE page: https://cwe.mitre.org/data/definitions/572.html
  • CWE list: https://cwe.mitre.org/data/index.html