From fa3d5483f0f4d4583b69ea7211c721418fca6704 Mon Sep 17 00:00:00 2001
From: David Hildenbrand <david@redhat.com>
Date: Mon, 17 Jan 2022 04:12:33 +0000
Subject: [PATCH] libvhost-user: fix VHOST_USER_REM_MEM_REG not closing the fd
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We end up not closing the file descriptor, resulting in leaking one
file descriptor for each VHOST_USER_REM_MEM_REG message.

Fixes: 875b9fd97b34 ("Support individual region unmap in libvhost-user")
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Raphael Norwitz <raphael.norwitz@nutanix.com>
Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Coiby Xu <coiby.xu@gmail.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20220117041050.19718-5-raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 subprojects/libvhost-user/libvhost-user.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvhost-user/libvhost-user.c
index 7dd8e918b4..3f4d7221ca 100644
--- a/subprojects/libvhost-user/libvhost-user.c
+++ b/subprojects/libvhost-user/libvhost-user.c
@@ -868,6 +868,8 @@ vu_rem_mem_reg(VuDev *dev, VhostUserMsg *vmsg) {
         vu_panic(dev, "Specified region not found\n");
     }
 
+    close(vmsg->fds[0]);
+
     return true;
 }