fbdev: omap2: remove potential format string leak
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Message ID 20150608223053.GA28939@www.outflux.net
State New
Headers show

Commit Message

Kees Cook June 8, 2015, 10:30 p.m. UTC
Since kobject_init_and_add takes a format string, make sure that the
passed in name cannot be accidentally parsed.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/video/fbdev/omap2/dss/display-sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Tomi Valkeinen June 12, 2015, 9:38 a.m. UTC | #1
On 09/06/15 01:30, Kees Cook wrote:
> Since kobject_init_and_add takes a format string, make sure that the
> passed in name cannot be accidentally parsed.
> 
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
>  drivers/video/fbdev/omap2/dss/display-sysfs.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/fbdev/omap2/dss/display-sysfs.c b/drivers/video/fbdev/omap2/dss/display-sysfs.c
> index 12186557a9d4..6ad0991f8259 100644
> --- a/drivers/video/fbdev/omap2/dss/display-sysfs.c
> +++ b/drivers/video/fbdev/omap2/dss/display-sysfs.c
> @@ -324,7 +324,7 @@ int display_init_sysfs(struct platform_device *pdev)
>  
>  	for_each_dss_dev(dssdev) {
>  		r = kobject_init_and_add(&dssdev->kobj, &display_ktype,
> -			&pdev->dev.kobj, dssdev->alias);
> +			&pdev->dev.kobj, "%s", dssdev->alias);
>  		if (r) {
>  			DSSERR("failed to create sysfs files\n");
>  			omap_dss_put_device(dssdev);
> 

Thanks, queued for 4.2.

 Tomi

Patch
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diff --git a/drivers/video/fbdev/omap2/dss/display-sysfs.c b/drivers/video/fbdev/omap2/dss/display-sysfs.c
index 12186557a9d4..6ad0991f8259 100644
--- a/drivers/video/fbdev/omap2/dss/display-sysfs.c
+++ b/drivers/video/fbdev/omap2/dss/display-sysfs.c
@@ -324,7 +324,7 @@  int display_init_sysfs(struct platform_device *pdev)
 
 	for_each_dss_dev(dssdev) {
 		r = kobject_init_and_add(&dssdev->kobj, &display_ktype,
-			&pdev->dev.kobj, dssdev->alias);
+			&pdev->dev.kobj, "%s", dssdev->alias);
 		if (r) {
 			DSSERR("failed to create sysfs files\n");
 			omap_dss_put_device(dssdev);