DTrace: Arbitrary file creation via dtprobed — GLSA 202604-04

A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.

Affected packages

Background

DTrace is a dynamic tracing tool for analysing or debugging the whole system. Specifically, dtprobed is a component of the DTrace system that keeps track of USDT probes within running processes, parsing and storing the DOF they provide for later consumption by dtrace proper.

Description

A vulnerability has been found in dtprobed that allows for arbitrary file creation through specially crafted USDT provider names.

Impact

The worst possible outcome is the ability for an attacker to run arbitrary code via the maliciously created file.

Workaround

There is no known workaround at this time.

Resolution

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-debug/dtrace-2.0.6"
 

References

• CVE-2026-21991

Release date
April 17, 2026

Latest revision
April 17, 2026: 1

Severity
normal

Exploitable
local

Bugzilla entries

• 971491