linux-kernel - [PATCH] staging: android: Replace strcpy with strlcpy

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Date:   Sun, 12 Mar 2017 02:10:01 +0530
From:   simran singhal <singhalsimran0@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     arve@...roid.com, riandrews@...roid.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        outreachy-kernel@...glegroups.com
Subject: [PATCH] staging: android: Replace strcpy with strlcpy

Replace strcpy with strlcpy as strcpy does not check for buffer
overflow.
This is found using Flawfinder.

Signed-off-by: simran singhal <singhalsimran0@...il.com>
---
 drivers/staging/android/ashmem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 7cbad0d..eb2f4ef 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -548,7 +548,8 @@ static int set_name(struct ashmem_area *asma, void __user *name)
 	if (unlikely(asma->file))
 		ret = -EINVAL;
 	else
-		strcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name);
+		strlcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name,
+			sizeof(asma->name + ASHMEM_NAME_PREFIX_LEN));
 
 	mutex_unlock(&ashmem_mutex);
 	return ret;
-- 
2.7.4