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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-14 22:49:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-14 22:49:50 -0700
commitdcf903d0c9adf003f664446bfc392034272b3071 (patch)
treef9133a14d4dceadc734d556eb7953f8748448d4f
parentMerge tag 'devprop-fix-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff)
parentcrypto: cavium - make several functions static (diff)
downloadlinux-dev-dcf903d0c9adf003f664446bfc392034272b3071.tar.xz
linux-dev-dcf903d0c9adf003f664446bfc392034272b3071.zip
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: - fix new compiler warnings in cavium - set post-op IV properly in caam (this fixes chaining) - fix potential use-after-free in atmel in case of EBUSY - fix sleeping in softirq path in chcr - disable buggy sha1-avx2 driver (may overread and page fault) - fix use-after-free on signals in caam * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: cavium - make several functions static crypto: chcr - Avoid algo allocation in softirq. crypto: caam - properly set IV after {en,de}crypt crypto: atmel - only treat EBUSY as transient if backlog crypto: af_alg - Avoid sock_graft call warning crypto: caam - fix signals handling crypto: sha1-ssse3 - Disable avx2
-rw-r--r--arch/x86/crypto/sha1_ssse3_glue.c2
-rw-r--r--crypto/af_alg.c2
-rw-r--r--drivers/crypto/atmel-sha.c4
-rw-r--r--drivers/crypto/caam/caamalg.c20
-rw-r--r--drivers/crypto/caam/caamhash.c2
-rw-r--r--drivers/crypto/caam/key_gen.c2
-rw-r--r--drivers/crypto/cavium/cpt/cptvf_algs.c8
-rw-r--r--drivers/crypto/chelsio/chcr_algo.c23
-rw-r--r--drivers/crypto/chelsio/chcr_crypto.h1
9 files changed, 45 insertions, 19 deletions
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
index fc61739150e7..f960a043cdeb 100644
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -201,7 +201,7 @@ asmlinkage void sha1_transform_avx2(u32 *digest, const char *data,
static bool avx2_usable(void)
{
- if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2)
+ if (false && avx_usable() && boot_cpu_has(X86_FEATURE_AVX2)
&& boot_cpu_has(X86_FEATURE_BMI1)
&& boot_cpu_has(X86_FEATURE_BMI2))
return true;
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 3556d8eb54a7..92a3d540d920 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -287,7 +287,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
goto unlock;
sock_init_data(newsock, sk2);
- sock_graft(sk2, newsock);
+ security_sock_graft(sk2, newsock);
security_sk_clone(sk, sk2);
err = type->accept(ask->private, sk2);
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index a9482023d7d3..dad4e5bad827 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -1204,7 +1204,9 @@ static int atmel_sha_finup(struct ahash_request *req)
ctx->flags |= SHA_FLAGS_FINUP;
err1 = atmel_sha_update(req);
- if (err1 == -EINPROGRESS || err1 == -EBUSY)
+ if (err1 == -EINPROGRESS ||
+ (err1 == -EBUSY && (ahash_request_flags(req) &
+ CRYPTO_TFM_REQ_MAY_BACKLOG)))
return err1;
/*
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index fde399c88779..0488b7f81dcf 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -882,10 +882,10 @@ static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
{
struct ablkcipher_request *req = context;
struct ablkcipher_edesc *edesc;
-#ifdef DEBUG
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+#ifdef DEBUG
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
@@ -904,6 +904,14 @@ static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
#endif
ablkcipher_unmap(jrdev, edesc, req);
+
+ /*
+ * The crypto API expects us to set the IV (req->info) to the last
+ * ciphertext block. This is used e.g. by the CTS mode.
+ */
+ scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize,
+ ivsize, 0);
+
kfree(edesc);
ablkcipher_request_complete(req, err);
@@ -914,10 +922,10 @@ static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
{
struct ablkcipher_request *req = context;
struct ablkcipher_edesc *edesc;
-#ifdef DEBUG
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+#ifdef DEBUG
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
@@ -935,6 +943,14 @@ static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
#endif
ablkcipher_unmap(jrdev, edesc, req);
+
+ /*
+ * The crypto API expects us to set the IV (req->info) to the last
+ * ciphertext block.
+ */
+ scatterwalk_map_and_copy(req->info, req->src, req->nbytes - ivsize,
+ ivsize, 0);
+
kfree(edesc);
ablkcipher_request_complete(req, err);
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 7c44c90ad593..910ec61cae09 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -396,7 +396,7 @@ static int hash_digest_key(struct caam_hash_ctx *ctx, const u8 *key_in,
ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
if (!ret) {
/* in progress */
- wait_for_completion_interruptible(&result.completion);
+ wait_for_completion(&result.completion);
ret = result.err;
#ifdef DEBUG
print_hex_dump(KERN_ERR,
diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c
index 1bb2816a9b4d..c425d4adaf2a 100644
--- a/drivers/crypto/caam/key_gen.c
+++ b/drivers/crypto/caam/key_gen.c
@@ -149,7 +149,7 @@ int gen_split_key(struct device *jrdev, u8 *key_out,
ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
if (!ret) {
/* in progress */
- wait_for_completion_interruptible(&result.completion);
+ wait_for_completion(&result.completion);
ret = result.err;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
diff --git a/drivers/crypto/cavium/cpt/cptvf_algs.c b/drivers/crypto/cavium/cpt/cptvf_algs.c
index 1b220f3ed017..df21d996db7e 100644
--- a/drivers/crypto/cavium/cpt/cptvf_algs.c
+++ b/drivers/crypto/cavium/cpt/cptvf_algs.c
@@ -222,17 +222,17 @@ static inline int cvm_enc_dec(struct ablkcipher_request *req, u32 enc)
return -EINPROGRESS;
}
-int cvm_encrypt(struct ablkcipher_request *req)
+static int cvm_encrypt(struct ablkcipher_request *req)
{
return cvm_enc_dec(req, true);
}
-int cvm_decrypt(struct ablkcipher_request *req)
+static int cvm_decrypt(struct ablkcipher_request *req)
{
return cvm_enc_dec(req, false);
}
-int cvm_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int cvm_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
u32 keylen)
{
struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
@@ -336,7 +336,7 @@ static int cvm_ecb_des3_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
return cvm_setkey(cipher, key, keylen, DES3_ECB);
}
-int cvm_enc_dec_init(struct crypto_tfm *tfm)
+static int cvm_enc_dec_init(struct crypto_tfm *tfm)
{
struct cvm_enc_ctx *ctx = crypto_tfm_ctx(tfm);
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index cfc723a10610..0e8160701833 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -898,26 +898,20 @@ static int chcr_update_tweak(struct ablkcipher_request *req, u8 *iv)
u8 *key;
unsigned int keylen;
- cipher = crypto_alloc_cipher("aes-generic", 0, 0);
+ cipher = ablkctx->aes_generic;
memcpy(iv, req->info, AES_BLOCK_SIZE);
- if (IS_ERR(cipher)) {
- ret = -ENOMEM;
- goto out;
- }
keylen = ablkctx->enckey_len / 2;
key = ablkctx->key + keylen;
ret = crypto_cipher_setkey(cipher, key, keylen);
if (ret)
- goto out1;
+ goto out;
crypto_cipher_encrypt_one(cipher, iv, iv);
for (i = 0; i < (reqctx->processed / AES_BLOCK_SIZE); i++)
gf128mul_x_ble((le128 *)iv, (le128 *)iv);
crypto_cipher_decrypt_one(cipher, iv, iv);
-out1:
- crypto_free_cipher(cipher);
out:
return ret;
}
@@ -1261,6 +1255,17 @@ static int chcr_cra_init(struct crypto_tfm *tfm)
pr_err("failed to allocate fallback for %s\n", alg->cra_name);
return PTR_ERR(ablkctx->sw_cipher);
}
+
+ if (get_cryptoalg_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_XTS) {
+ /* To update tweak*/
+ ablkctx->aes_generic = crypto_alloc_cipher("aes-generic", 0, 0);
+ if (IS_ERR(ablkctx->aes_generic)) {
+ pr_err("failed to allocate aes cipher for tweak\n");
+ return PTR_ERR(ablkctx->aes_generic);
+ }
+ } else
+ ablkctx->aes_generic = NULL;
+
tfm->crt_ablkcipher.reqsize = sizeof(struct chcr_blkcipher_req_ctx);
return chcr_device_init(crypto_tfm_ctx(tfm));
}
@@ -1291,6 +1296,8 @@ static void chcr_cra_exit(struct crypto_tfm *tfm)
struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
crypto_free_skcipher(ablkctx->sw_cipher);
+ if (ablkctx->aes_generic)
+ crypto_free_cipher(ablkctx->aes_generic);
}
static int get_alg_config(struct algo_param *params,
diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h
index a4f95b014b46..30af1ee17b87 100644
--- a/drivers/crypto/chelsio/chcr_crypto.h
+++ b/drivers/crypto/chelsio/chcr_crypto.h
@@ -155,6 +155,7 @@
struct ablk_ctx {
struct crypto_skcipher *sw_cipher;
+ struct crypto_cipher *aes_generic;
__be32 key_ctx_hdr;
unsigned int enckey_len;
unsigned char ciph_mode;