xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto: nx - Fixing SHA update bug

Browse Source 
Bug happens when a data size less than SHA block size is passed.
Since first attempt will be saved in buffer, second round attempt
get into two step to calculate op.inlen and op.outlen. The issue
resides in this step. A  wrong value of op.inlen and outlen was being
calculated.

This patch fix this eliminate the nx_sha_build_sg_list, that is
useless in SHA's algorithm context. Instead we call nx_build_sg_list
directly and pass a previous calculated max_sg_len to it.

Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Leonidas Da Silva Barbosa
2015-04-23 17:41:43 -03:00
committed by Herbert Xu
parent c3365ce130
commit 10d87b730e
4 changed files with 101 additions and 121 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/crypto/nx/nx.h
View File

@@ -153,8 +153,6 @@ void nx_crypto_ctx_exit(struct crypto_tfm *tfm);
void nx_ctx_init(struct nx_crypto_ctx *nx_ctx, unsigned int function);
int nx_hcall_sync(struct nx_crypto_ctx *ctx, struct vio_pfo_op *op,
u32 may_sleep);
int nx_sha_build_sg_list(struct nx_crypto_ctx *, struct nx_sg *,
s64 *, unsigned int *, u8 *, u32);
struct nx_sg *nx_build_sg_list(struct nx_sg *, u8 *, unsigned int *, u32);
int nx_build_sg_lists(struct nx_crypto_ctx *, struct blkcipher_desc *,
struct scatterlist *, struct scatterlist *, unsigned int *,