diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-04-20 19:00:07 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-04-20 19:00:07 (GMT) |
commit | 55f058e7574c3615dea4615573a19bdb258696c6 (patch) | |
tree | d61a76190d448f42a60e20a541b4808459f1b333 | |
parent | 9a0e3eea25d3ab267aff9d4eaed83fbe46d989d0 (diff) | |
parent | f709b45ec461b548c41a00044dba1f1b572783bf (diff) | |
download | linux-55f058e7574c3615dea4615573a19bdb258696c6.tar.xz |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- Incorrect output buffer size calculation in rsa-pkcs1pad
- Uninitialised padding bytes on exported state in ccp driver
- Potentially freed pointer used on completion callback in sha1-mb"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: ccp - Prevent information leakage on export
crypto: sha1-mb - use corrcet pointer while completing jobs
crypto: rsa-pkcs1pad - fix dst len
-rw-r--r-- | arch/x86/crypto/sha-mb/sha1_mb.c | 4 | ||||
-rw-r--r-- | crypto/rsa-pkcs1pad.c | 12 | ||||
-rw-r--r-- | drivers/crypto/ccp/ccp-crypto-aes-cmac.c | 3 | ||||
-rw-r--r-- | drivers/crypto/ccp/ccp-crypto-sha.c | 3 |
4 files changed, 14 insertions, 8 deletions
diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c index a8a0224..081255c 100644 --- a/arch/x86/crypto/sha-mb/sha1_mb.c +++ b/arch/x86/crypto/sha-mb/sha1_mb.c @@ -453,10 +453,10 @@ static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx, req = cast_mcryptd_ctx_to_req(req_ctx); if (irqs_disabled()) - rctx->complete(&req->base, ret); + req_ctx->complete(&req->base, ret); else { local_bh_disable(); - rctx->complete(&req->base, ret); + req_ctx->complete(&req->base, ret); local_bh_enable(); } } diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 1cea67d..ead8dc0 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -387,16 +387,16 @@ static int pkcs1pad_decrypt(struct akcipher_request *req) req_ctx->child_req.src = req->src; req_ctx->child_req.src_len = req->src_len; req_ctx->child_req.dst = req_ctx->out_sg; - req_ctx->child_req.dst_len = ctx->key_size - 1; + req_ctx->child_req.dst_len = ctx->key_size ; - req_ctx->out_buf = kmalloc(ctx->key_size - 1, + req_ctx->out_buf = kmalloc(ctx->key_size, (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL : GFP_ATOMIC); if (!req_ctx->out_buf) return -ENOMEM; pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf, - ctx->key_size - 1, NULL); + ctx->key_size, NULL); akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, @@ -595,16 +595,16 @@ static int pkcs1pad_verify(struct akcipher_request *req) req_ctx->child_req.src = req->src; req_ctx->child_req.src_len = req->src_len; req_ctx->child_req.dst = req_ctx->out_sg; - req_ctx->child_req.dst_len = ctx->key_size - 1; + req_ctx->child_req.dst_len = ctx->key_size; - req_ctx->out_buf = kmalloc(ctx->key_size - 1, + req_ctx->out_buf = kmalloc(ctx->key_size, (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL : GFP_ATOMIC); if (!req_ctx->out_buf) return -ENOMEM; pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf, - ctx->key_size - 1, NULL); + ctx->key_size, NULL); akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, diff --git a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c index 3d9acc5..60fc0fa 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c @@ -225,6 +225,9 @@ static int ccp_aes_cmac_export(struct ahash_request *req, void *out) struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req); struct ccp_aes_cmac_exp_ctx state; + /* Don't let anything leak to 'out' */ + memset(&state, 0, sizeof(state)); + state.null_msg = rctx->null_msg; memcpy(state.iv, rctx->iv, sizeof(state.iv)); state.buf_count = rctx->buf_count; diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c index b5ad728..8f36af6 100644 --- a/drivers/crypto/ccp/ccp-crypto-sha.c +++ b/drivers/crypto/ccp/ccp-crypto-sha.c @@ -212,6 +212,9 @@ static int ccp_sha_export(struct ahash_request *req, void *out) struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req); struct ccp_sha_exp_ctx state; + /* Don't let anything leak to 'out' */ + memset(&state, 0, sizeof(state)); + state.type = rctx->type; state.msg_bits = rctx->msg_bits; state.first = rctx->first; |