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authorNaveen Krishna Chatradhi <ch.naveen@samsung.com>2014-05-08 21:58:15 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2014-05-08 21:58:15 +0800
commit8f9702aad13892cc50560f29adfa313da584636b (patch)
tree8bfbf7002d6d08497c0f785d2a2943139898d967
parente922e96f2f1a4b5e722d582db9b0d129060a061a (diff)
crypto: s5p-sss - validate iv before memcpy
This patch adds code to validate "iv" buffer before trying to memcpy the contents Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/s5p-sss.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 37e0598a8cba..0ffc0429d16d 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -380,7 +380,8 @@ static void s5p_set_aes(struct s5p_aes_dev *dev,
{
void __iomem *keystart;
- memcpy(dev->aes_ioaddr + SSS_REG_AES_IV_DATA(0), iv, 0x10);
+ if (iv)
+ memcpy(dev->aes_ioaddr + SSS_REG_AES_IV_DATA(0), iv, 0x10);
if (keylen == AES_KEYSIZE_256)
keystart = dev->aes_ioaddr + SSS_REG_AES_KEY_DATA(0);