diff options
| author |   YueHaibing <yuehaibing@huawei.com> | 2018-12-28 14:41:00 +0800 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2019-01-11 14:16:56 +0800 |
| commit | 66af86d93ce32ff5b262ace9a6696873cc1bdb3e (patch) | |
| tree | b7221d16b13ca3d996d71149fbd90dd35b062791 /drivers/crypto/chelsio/chcr_algo.c | |
| parent | crypto: ux500 - catch dma submission error (diff) | |
| download | wireguard-linux-66af86d93ce32ff5b262ace9a6696873cc1bdb3e.tar.xz wireguard-linux-66af86d93ce32ff5b262ace9a6696873cc1bdb3e.zip | |
crypto: chelsio - check set_msg_len overflow in generate_b0
set_msg_len may fails with -EOVERFLOW, It should be propagate
to upstream.
Fixes: 2debd3325e55 ("crypto: chcr - Add AEAD algos.")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/chelsio/chcr_algo.c')
| -rw-r--r-- | drivers/crypto/chelsio/chcr_algo.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index bcef76508dfa..bdbdce9fdf25 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -2762,7 +2762,7 @@ static int set_msg_len(u8 *block, unsigned int msglen, int csize) return 0; } -static void generate_b0(struct aead_request *req, u8 *ivptr, +static int generate_b0(struct aead_request *req, u8 *ivptr, unsigned short op_type) { unsigned int l, lp, m; @@ -2787,6 +2787,8 @@ static void generate_b0(struct aead_request *req, u8 *ivptr, rc = set_msg_len(b0 + 16 - l, (op_type == CHCR_DECRYPT_OP) ? req->cryptlen - m : req->cryptlen, l); + + return rc; } static inline int crypto_ccm_check_iv(const u8 *iv) @@ -2821,7 +2823,7 @@ static int ccm_format_packet(struct aead_request *req, *((unsigned short *)(reqctx->scratch_pad + 16)) = htons(assoclen); - generate_b0(req, ivptr, op_type); + rc = generate_b0(req, ivptr, op_type); /* zero the ctr value */ memset(ivptr + 15 - ivptr[0], 0, ivptr[0] + 1); return rc; |