#### Pre-Submission Checklist - [ ] Commit message has the format required by CONTRIBUTING guide - [ ] Commits are split per component (core, individual modules, libs, utils, ...) - [ ] Each component has a single commit (if not, squash them into one commit) - [ ] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated)
#### Type Of Change - [ ] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality)
#### Checklist: - [ ] PR should be backported to stable branches - [ ] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number)
#### Description
The sig_usr() signal handler contains debug code to print memory usage and statistics that is not async-signal-safe, which can cause crashes or misbehavior. This code which only affects explicit SIGUSR1 signals on children processes, and is not guarded with the SIG_DEBUG macro. You can view, comment on, or merge this pull request online at:
https://github.com/kamailio/kamailio/pull/2127
-- Commit Summary --
* core: main - Protect async-signal-unsafe code in sig_usr() with SIG_DEBUG
-- File Changes --
M src/main.c (2)
-- Patch Links --
https://github.com/kamailio/kamailio/pull/2127.patch https://github.com/kamailio/kamailio/pull/2127.diff