From b1381828c6c1f8eb8d80886a129b129e38e9b4ec Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 15 Jul 2021 02:40:04 +0300
Subject: [PATCH] procctl(PROC_ASLR_STATUS): fix vmspace leak

(cherry picked from commit 0bdb2cbf9d7c4366a0668b4563c8630538a50086)
---
 sys/kern/kern_procctl.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/kern/kern_procctl.c b/sys/kern/kern_procctl.c
index b6f6f1b772b..b2694fd0c32 100644
--- a/sys/kern/kern_procctl.c
+++ b/sys/kern/kern_procctl.c
@@ -509,8 +509,9 @@ aslr_status(struct thread *td, struct proc *p, int *data)
 		_PHOLD(p);
 		PROC_UNLOCK(p);
 		vm = vmspace_acquire_ref(p);
-		if (vm != NULL && (vm->vm_map.flags & MAP_ASLR) != 0) {
-			d |= PROC_ASLR_ACTIVE;
+		if (vm != NULL) {
+			if ((vm->vm_map.flags & MAP_ASLR) != 0)
+				d |= PROC_ASLR_ACTIVE;
 			vmspace_free(vm);
 		}
 		PROC_LOCK(p);