[PATCH] cpia.c: buffer overflow

From: Alexey Dobriyan
Date: Tue Jan 09 2007 - 14:32:14 EST


If assigned minor is 10 or greater, terminator will be put beyound the end.

Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
---

drivers/media/video/cpia.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/media/video/cpia.c
+++ b/drivers/media/video/cpia.c
@@ -1350,13 +1350,13 @@ out:

static void create_proc_cpia_cam(struct cam_data *cam)
{
- char name[7];
+ char name[5 + 1 + 10 + 1];
struct proc_dir_entry *ent;

if (!cpia_proc_root || !cam)
return;

- sprintf(name, "video%d", cam->vdev.minor);
+ snprintf(name, sizeof(name), "video%d", cam->vdev.minor);

ent = create_proc_entry(name, S_IFREG|S_IRUGO|S_IWUSR, cpia_proc_root);
if (!ent)
@@ -1376,12 +1376,12 @@ static void create_proc_cpia_cam(struct

static void destroy_proc_cpia_cam(struct cam_data *cam)
{
- char name[7];
+ char name[5 + 1 + 10 + 1];

if (!cam || !cam->proc_entry)
return;

- sprintf(name, "video%d", cam->vdev.minor);
+ snprintf(name, sizeof(name), "video%d", cam->vdev.minor);
remove_proc_entry(name, cpia_proc_root);
cam->proc_entry = NULL;
}

-
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