https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253208
Bug ID: 253208
Summary: ntpd: fails to start with ASLR
Product: Base System
Version: 13.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: [email protected]
Reporter: [email protected]
If one builds FreeBSD with:
WITH_BIND_NOW=yes
WITH_PIE=yes
and sets sysctls:
kern.elf64.aslr.enable=1
kern.elf64.aslr.honor_sbrk=0
kern.elf64.aslr.pie_enable=1
kern.elf64.allow_wx=0
security.bsd.stack_guard_page=1
ntpd will not start:
pid 63899 (ntpd), jid 0, uid 123: exited on signal 11
A workaround is to disable ASLR stack gap:
elfctl -e +noaslrstkgap /usr/sbin/ntpd
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