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] [thread-next>] [day] [month] [year] [list]
Date:   Sat, 31 Oct 2020 17:07:05 +0800
From:   Weili Qian <qianweili@...wei.com>
To:     <herbert@...dor.apana.org.au>, <davem@...emloft.net>
CC:     <linux-kernel@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
        <xuzaibo@...wei.com>, <wangzhou1@...ilicon.com>
Subject: [PATCH 5/8] crypto: hisilicon/qm - replace 'sprintf' with 'scnprintf'

Replace 'sprintf' with 'scnprintf' to avoid overrun.

Signed-off-by: Weili Qian <qianweili@...wei.com>
Reviewed-by: Zhou Wang <wangzhou1@...ilicon.com>
---
 drivers/crypto/hisilicon/qm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 17f84db..25c5414 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -932,7 +932,8 @@ static ssize_t qm_debug_read(struct file *filp, char __user *buf,
 		return -EINVAL;
 	}
 	mutex_unlock(&file->lock);
-	ret = sprintf(tbuf, "%u\n", val);
+
+	ret = scnprintf(tbuf, QM_DBG_TMP_BUF_LEN, "%u\n", val);
 	return simple_read_from_buffer(buf, count, pos, tbuf, ret);
 }
 
-- 
2.8.1

Powered by blists - more mailing lists