git: b1381828c6c1 - stable/13 - procctl(PROC_ASLR_STATUS): fix vmspace leak

[Konstantin Belousov]

The branch stable/13 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=b1381828c6c1f8eb8d80886a129b129e38e9b4ec

commit b1381828c6c1f8eb8d80886a129b129e38e9b4ec
Author:     Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-07-14 23:40:04 +0000
Commit:     Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-07-18 00:26:52 +0000

    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 b6f6f1b772b2..b2694fd0c32c 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);