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crypto: virtio - Erase some sensitive memory when it is freed

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virtcrypto_clear_request() does the same as the code here, but uses
kfree_sensitive() for one of the free operation.

So, better safe than sorry, use virtcrypto_clear_request() directly to
save a few lines of code and cleanly free the memory.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Tested-by: Lei Yang <leiyang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christophe JAILLET
2025-03-03 20:08:04 +01:00
committed by Herbert Xu
parent 20238d4944
commit fb14ef46e2
1 changed files with 2 additions and 4 deletions
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6
drivers/crypto/virtio/virtio_crypto_core.c
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@@ -480,10 +480,8 @@ static void virtcrypto_free_unused_reqs(struct virtio_crypto *vcrypto)
for (i = 0; i < vcrypto->max_data_queues; i++) {
vq = vcrypto->data_vq[i].vq;
while ((vc_req = virtqueue_detach_unused_buf(vq)) != NULL) {
kfree(vc_req->req_data);
kfree(vc_req->sgs);
}
while ((vc_req = virtqueue_detach_unused_buf(vq)) != NULL)
virtcrypto_clear_request(vc_req);
cond_resched();
}
}