Project

General

Profile

Actions

Bug #1284

closed

UST consumer daemon should handle SIGBUS

Added by Mathieu Desnoyers over 3 years ago. Updated almost 3 years ago.

Status:
Resolved
Priority:
Normal
Target version:
-
Start date:
10/09/2020
Due date:
% Done:

100%

Estimated time:

Description

There is an issue with the security model of lib ring buffer (lttng-ust) vs SIGBUS handling by consumer daemon. We do not trap SIGBUS in the consumer daemon. An application using ftruncate on a ring buffer shm could cause the consumer to be killed with SIGBUS.

Actions

Also available in: Atom PDF