mirror of https://gitee.com/openkylin/linux.git
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] xcbc: Fix crash when ipsec uses xcbc-mac with big data chunk
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commit
8774b7f63b
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@ -116,13 +116,11 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc,
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struct crypto_xcbc_ctx *ctx = crypto_hash_ctx_aligned(parent);
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struct crypto_cipher *tfm = ctx->child;
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int bs = crypto_hash_blocksize(parent);
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unsigned int i = 0;
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do {
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struct page *pg = sg_page(&sg[i]);
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unsigned int offset = sg[i].offset;
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unsigned int slen = sg[i].length;
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for (;;) {
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struct page *pg = sg_page(sg);
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unsigned int offset = sg->offset;
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unsigned int slen = sg->length;
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if (unlikely(slen > nbytes))
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slen = nbytes;
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@ -182,8 +180,11 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc,
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offset = 0;
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pg++;
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}
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i++;
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} while (nbytes>0);
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if (!nbytes)
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break;
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sg = scatterwalk_sg_next(sg);
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}
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return 0;
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}
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