qemu-kvm/SOURCES/kvm-Virtiofsd-fix-memory-leak-on-fuse-queueinfo.patch

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From ceb6d97674b8bc9a072db1be4167411bc0ee48d7 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:02:02 +0100
Subject: [PATCH 091/116] Virtiofsd: fix memory leak on fuse queueinfo
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200127190227.40942-88-dgilbert@redhat.com>
Patchwork-id: 93542
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 087/112] Virtiofsd: fix memory leak on fuse queueinfo
Bugzilla: 1694164
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
From: Liu Bo <bo.liu@linux.alibaba.com>
For fuse's queueinfo, both queueinfo array and queueinfos are allocated in
fv_queue_set_started() but not cleaned up when the daemon process quits.
This fixes the leak in proper places.
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Eric Ren <renzhen@linux.alibaba.com>
Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit 740b0b700a6338a1cf60c26229651ac5f6724944)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
tools/virtiofsd/fuse_virtio.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c
index b7948de..fb8d6d1 100644
--- a/tools/virtiofsd/fuse_virtio.c
+++ b/tools/virtiofsd/fuse_virtio.c
@@ -625,6 +625,8 @@ static void fv_queue_cleanup_thread(struct fv_VuDev *vud, int qidx)
}
close(ourqi->kill_fd);
ourqi->kick_fd = -1;
+ free(vud->qi[qidx]);
+ vud->qi[qidx] = NULL;
}
/* Callback from libvhost-user on start or stop of a queue */
@@ -884,6 +886,12 @@ int virtio_session_mount(struct fuse_session *se)
void virtio_session_close(struct fuse_session *se)
{
close(se->vu_socketfd);
+
+ if (!se->virtio_dev) {
+ return;
+ }
+
+ free(se->virtio_dev->qi);
free(se->virtio_dev);
se->virtio_dev = NULL;
}
--
1.8.3.1