crypto: algif_skcipher - Cap recv SG list at ctx->used (7cf81954) · Commits · 戴 / test

Somewhere along the line the cap on the SG list length for receive was lost. This patch restores it and removes the subsequent test which is now redundant. Fixes: ("crypto: af_alg - consolidation of...") Cc: <stable@vger.kernel.org> Signed-off-by:

Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by:

Stephan Mueller <smueller@chronox.de> Signed-off-by:

Herbert Xu <herbert@gondor.apana.org.au>

crypto/algif_skcipher.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -74,14 +74,10 @@ static int _skcipher_recvmsg(struct socket sock, struct msghdr msg,
		return PTR_ERR(areq);

		/* convert iovecs of output buffers into RX SGL */
		err = af_alg_get_rsgl(sk, msg, flags, areq, -1, &len);
		err = af_alg_get_rsgl(sk, msg, flags, areq, ctx->used, &len);
		if (err)
		goto free;

		/* Process only as much RX buffers for which we have TX data */
		if (len > ctx->used)
		len = ctx->used;

		/*
		* If more buffers are to be expected to be processed, process only
		* full block size buffers.

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