linux-kernel - [PATCH 7/9 v6] crypto:s5p-sss: validate iv before memcpy

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-id: <1391750727-27496-1-git-send-email-ch.naveen@samsung.com>
Date:	Fri, 07 Feb 2014 10:55:27 +0530
From:	Naveen Krishna Chatradhi <ch.naveen@...sung.com>
To:	linux-crypto@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, vzapolskiy@...il.com,
	herbert@...dor.apana.org.au, naveenkrishna.ch@...il.com,
	cpgs@...sung.com
Subject: [PATCH 7/9 v6] 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@...sung.com>
Reviewed-by: Tomasz Figa <t.figa@...sung.com>
---
changes since v5:
None

 drivers/crypto/s5p-sss.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index da1c8943..a890273 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);
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/