diff options
| author | Colin Ian King <colin.king@canonical.com> | 2021-04-09 17:53:14 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-06-26 07:12:24 +0200 |
| commit | 1cb027f2f803d0a7abe9c291f0625e6bccd25999 (patch) | |
| tree | 6c8250719218df4cb3596fe1d9c35bc7c7a7d8c1 /drivers/bluetooth | |
| parent | 1c6ed31b1696d9b5462ba5ce15b83f5ea955600c (diff) | |
Bluetooth: virtio_bt: add missing null pointer check on alloc_skb call return
The call to alloc_skb with the GFP_KERNEL flag can return a null sk_buff
pointer, so add a null check to avoid any null pointer deference issues.
Addresses-Coverity: ("Dereference null return value")
Fixes: afd2daa26c7a ("Bluetooth: Add support for virtio transport driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/virtio_bt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bluetooth/virtio_bt.c b/drivers/bluetooth/virtio_bt.c index c804db7e90f8..57908ce4fae8 100644 --- a/drivers/bluetooth/virtio_bt.c +++ b/drivers/bluetooth/virtio_bt.c @@ -34,6 +34,9 @@ static int virtbt_add_inbuf(struct virtio_bluetooth *vbt) int err; skb = alloc_skb(1000, GFP_KERNEL); + if (!skb) + return -ENOMEM; + sg_init_one(sg, skb->data, 1000); err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_KERNEL); |