diff options
| author | Dan Carpenter <dan.carpenter@linaro.org> | 2023-10-27 15:12:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-28 17:19:49 +0000 |
| commit | bf04132cd64ccde4e9e9765d489c83fe83c09b7f (patch) | |
| tree | 4a5dc05c71010f9bfe8824a536def7da34598e09 /drivers/vhost | |
| parent | 941fcbb0f06c2df81f65e1c79c44a2667247ae09 (diff) | |
vhost-vdpa: fix use after free in vhost_vdpa_probe()
[ Upstream commit e07754e0a1ea2d63fb29574253d1fd7405607343 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/vhost')
| -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 78379ffd2336..fb590e346e43 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -1511,7 +1511,6 @@ static int vhost_vdpa_probe(struct vdpa_device *vdpa) err: put_device(&v->dev); - ida_simple_remove(&vhost_vdpa_ida, v->minor); return r; } |