Commit aa8b6dd4 authored Mar 23, 2016 by Tudor Ambarus Committed by Herbert Xu Apr 05, 2016

crypto: qat - avoid memory corruption or undefined behaviour



memcopying to a (null pointer + offset) will result
in memory corruption or undefined behaviour.

Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent 0c4935b3

drivers/crypto/qat/qat_common/qat_asym_algs.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -593,7 +593,7 @@ int qat_rsa_get_d(void *context, size_t hdrlen, unsigned char tag,

		ret = -ENOMEM;
		ctx->d = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_d, GFP_KERNEL);
		if (!ctx->n)
		if (!ctx->d)
		goto err;

		memcpy(ctx->d + (ctx->key_sz - vlen), ptr, vlen);

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