diff options
| author | Dan Carpenter | 2023-10-27 15:12:54 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin | 2023-11-01 09:31:16 -0400 |
| commit | e07754e0a1ea2d63fb29574253d1fd7405607343 (patch) | |
| tree | 13eebdfea0eaf734901829b35598818af45a3f31 | |
| parent | b2c8b644fac1087dfe69a1762c04df090178a5ae (diff) | |
vhost-vdpa: fix use after free in vhost_vdpa_probe()
The put_device() calls vhost_vdpa_release_dev() which calls
ida_simple_remove() and frees "v". So this call to
ida_simple_remove() is a use after free and a double free.
Fixes: ebe6a354fa7e ("vhost-vdpa: Call ida_simple_remove() when failed")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Message-Id: <cf53cb61-0699-4e36-a980-94fd4268ff00@moroto.mountain>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
| -rw-r--r-- | drivers/vhost/vdpa.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 30df5c58db73..da7ec77cdaff 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -1582,7 +1582,6 @@ static int vhost_vdpa_probe(struct vdpa_device *vdpa) err: put_device(&v->dev); - ida_simple_remove(&vhost_vdpa_ida, v->minor); return r; } |