commit
4f0414e54e4d1893c6f08260693f8ef84c929293 upstream.
We need to load the TX SG list in sendmsg(2) after waiting for
incoming data, not before.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
[bwh: Backported to 3.2: adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
char __user *from = iov->iov_base;
while (seglen) {
- sgl = list_first_entry(&ctx->tsgl,
- struct skcipher_sg_list, list);
- sg = sgl->sg;
-
- while (!sg->length)
- sg++;
-
used = ctx->used;
if (!used) {
err = skcipher_wait_for_data(sk, flags);
if (!used)
goto free;
+ sgl = list_first_entry(&ctx->tsgl,
+ struct skcipher_sg_list, list);
+ sg = sgl->sg;
+
+ while (!sg->length)
+ sg++;
+
ablkcipher_request_set_crypt(&ctx->req, sg,
ctx->rsgl.sg, used,
ctx->iv);