From 2ffee5c1b2cf33f28df2c8341fa521fc4239daf1 Mon Sep 17 00:00:00 2001 From: Mark Johnston Date: Wed, 10 Jul 2019 19:57:48 +0000 Subject: Inherit P2_PROTMAX_{ENABLE,DISABLE} across fork(). Thus, when using proccontrol(1) to disable implicit application of PROT_MAX within a process, child processes will inherit this setting. Discussed with: kib MFC with: r349609 Sponsored by: The FreeBSD Foundation --- sys/kern/kern_fork.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sys/kern/kern_fork.c') diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index 78becdba74f9..c292be55e97c 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -465,7 +465,8 @@ do_fork(struct thread *td, struct fork_req *fr, struct proc *p2, struct thread * */ p2->p_flag = P_INMEM; p2->p_flag2 = p1->p_flag2 & (P2_ASLR_DISABLE | P2_ASLR_ENABLE | - P2_ASLR_IGNSTART | P2_NOTRACE | P2_NOTRACE_EXEC | P2_TRAPCAP); + P2_ASLR_IGNSTART | P2_NOTRACE | P2_NOTRACE_EXEC | + P2_PROTMAX_ENABLE | P2_PROTMAX_DISABLE | P2_TRAPCAP); p2->p_swtick = ticks; if (p1->p_flag & P_PROFIL) startprofclock(p2); -- cgit v1.2.3