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virtqueue_add_consumed_buffer input parameter fix

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head_idx must be restricted to 0 ... vq_nentries - 1
Signed-off-by: Tammy Leino <tammy_leino@mentor.com>
This commit is contained in:
Tammy Leino
2022-07-28 12:08:54 -07:00
committed by Arnaud Pouliquen
parent 6d9df8fbac
commit 8590171dc1
1 changed files with 1 additions and 1 deletions
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lib/virtio/virtqueue.c
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@@ -302,7 +302,7 @@ int virtqueue_add_consumed_buffer(struct virtqueue *vq, uint16_t head_idx,
struct vring_used_elem *used_desc = NULL;
uint16_t used_idx;
if (head_idx > vq->vq_nentries) {
if (head_idx >= vq->vq_nentries) {
return ERROR_VRING_NO_BUFF;
}