OpenSSH sshd on musl-based systems is not vulnerable to RCE via CVE-2024-6387 (regreSSHion).

This is because we do not use localtime in log timestamps and do not use dynamic allocation (because it could fail under memory pressure) for printf formatting.

While the sshd bug is UB (AS-unsafe syslog call from signal context), very deliberate decisions we made for other good reasons reduced the potential impact to deadlock taking a lock.

musl libc is now on the 'don!