From 6f3e9bac4d46d789af3e563f47681d0a020582ed Mon Sep 17 00:00:00 2001
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Fri, 15 Dec 2023 16:33:29 -0800
Subject: [PATCH] vm: Plug umtx shm object leak.

Reviewed by:	kib
Approved by:	oshogbo
MFC after:	1 week
Sponsored by:	Fudo Security
Differential Revision:	https://reviews.freebsd.org/D43073
---
 sys/vm/vm_object.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
index b559c9d2cbab..c141b410edf2 100644
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -1995,6 +1995,7 @@ vm_object_collapse(vm_object_t object)
 			    backing_object));
 			vm_object_pip_wakeup(backing_object);
 			(void)refcount_release(&backing_object->ref_count);
+			umtx_shm_object_terminated(backing_object);
 			vm_object_terminate(backing_object);
 			counter_u64_add(object_collapses, 1);
 			VM_OBJECT_WLOCK(object);