diff options
| author | Naveen Krishna Chatradhi <ch.naveen@samsung.com> | 2014-05-08 21:58:15 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-05-08 21:58:15 +0800 |
| commit | 8f9702aad13892cc50560f29adfa313da584636b (patch) | |
| tree | 8bfbf7002d6d08497c0f785d2a2943139898d967 /drivers/crypto/s5p-sss.c | |
| parent | e922e96f2f1a4b5e722d582db9b0d129060a061a (diff) | |
| download | linux-8f9702aad13892cc50560f29adfa313da584636b.tar.gz linux-8f9702aad13892cc50560f29adfa313da584636b.tar.bz2 linux-8f9702aad13892cc50560f29adfa313da584636b.zip | |
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>
Diffstat (limited to 'drivers/crypto/s5p-sss.c')
| -rw-r--r-- | drivers/crypto/s5p-sss.c | 3 |
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); |