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[PULL,084/108] Virtiofsd: fix memory leak on fuse queueinfo

Message ID 20200123164630.91498-85-dgilbert@redhat.com
State New
Headers show
Series virtiofs queue | expand

Commit Message

Dr. David Alan Gilbert Jan. 23, 2020, 4:46 p.m. UTC 
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>
---
 tools/virtiofsd/fuse_virtio.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c
index b7948def27..fb8d6d1379 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;
 }