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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-12-05 10:46:44 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-12-05 10:46:44 -0800 |
| commit | 9cfe5212745a41fbe7cba1a74289f5c66fc45c1f (patch) | |
| tree | 5e2cf7b4b8ea1f0a9b318aa411602d4e48483489 | |
| parent | 849ee3d46a7334e950fb17d1ac2cbe2c6b088f65 (diff) | |
| parent | 79960943fdc114fd4583c9ab164b5c89da7aa601 (diff) | |
| download | lwn-9cfe5212745a41fbe7cba1a74289f5c66fc45c1f.tar.gz lwn-9cfe5212745a41fbe7cba1a74289f5c66fc45c1f.zip | |
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 a couple of crypto drivers that were using memcmp to verify
authentication tags. They now use crypto_memneq instead"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: talitos - Fix timing leak in ESP ICV verification
crypto: nx - Fix timing leak in GCM and CCM decryption
| -rw-r--r-- | drivers/crypto/nx/nx-aes-ccm.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/nx/nx-aes-gcm.c | 3 | ||||
| -rw-r--r-- | drivers/crypto/talitos.c | 2 |
3 files changed, 4 insertions, 3 deletions
diff --git a/drivers/crypto/nx/nx-aes-ccm.c b/drivers/crypto/nx/nx-aes-ccm.c index 73ef49922788..7038f364acb5 100644 --- a/drivers/crypto/nx/nx-aes-ccm.c +++ b/drivers/crypto/nx/nx-aes-ccm.c @@ -409,7 +409,7 @@ static int ccm_nx_decrypt(struct aead_request *req, processed += to_process; } while (processed < nbytes); - rc = memcmp(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag, + rc = crypto_memneq(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag, authsize) ? -EBADMSG : 0; out: spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c index eee624f589b6..abd465f479c4 100644 --- a/drivers/crypto/nx/nx-aes-gcm.c +++ b/drivers/crypto/nx/nx-aes-gcm.c @@ -21,6 +21,7 @@ #include <crypto/internal/aead.h> #include <crypto/aes.h> +#include <crypto/algapi.h> #include <crypto/scatterwalk.h> #include <linux/module.h> #include <linux/types.h> @@ -418,7 +419,7 @@ mac: itag, req->src, req->assoclen + nbytes, crypto_aead_authsize(crypto_aead_reqtfm(req)), SCATTERWALK_FROM_SG); - rc = memcmp(itag, otag, + rc = crypto_memneq(itag, otag, crypto_aead_authsize(crypto_aead_reqtfm(req))) ? -EBADMSG : 0; } diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 46f531e19ccf..b6f9f42e2985 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -977,7 +977,7 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev, } else oicv = (char *)&edesc->link_tbl[0]; - err = memcmp(oicv, icv, authsize) ? -EBADMSG : 0; + err = crypto_memneq(oicv, icv, authsize) ? -EBADMSG : 0; } kfree(edesc); |