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Commit 9d20b571 authored by Herbert Xu's avatar Herbert Xu
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crypto: sha-s390 - Reset index after processing partial block 



The partial block handling in sha-s390 is broken when we get a
partial block that is followed by an update which fills it with
bytes left-over.  Instead of storing the newly left-over bytes
at the start of the buffer, it will be stored immediately after
the previous partial block.

This patch fixes this by resetting the index pointer.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1bae4ce2

arch/s390/crypto/sha_common.c

+1 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) 
		BUG_ON(ret != bsize);

		data += bsize - index;

		len -= bsize - index;

		index = 0;

	}



	/* process as many blocks as possible */