* [PATCH] fbdev: omap2: remove potential format string leak
@ 2015-06-08 22:30 Kees Cook
2015-06-12 9:38 ` Tomi Valkeinen
0 siblings, 1 reply; 2+ messages in thread
From: Kees Cook @ 2015-06-08 22:30 UTC (permalink / raw)
To: linux-kernel
Cc: Tomi Valkeinen, Jean-Christophe Plagniol-Villard, Kees Cook,
linux-omap, linux-fbdev
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);
--
1.9.1
--
Kees Cook
Chrome OS Security
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] fbdev: omap2: remove potential format string leak
2015-06-08 22:30 [PATCH] fbdev: omap2: remove potential format string leak Kees Cook
@ 2015-06-12 9:38 ` Tomi Valkeinen
0 siblings, 0 replies; 2+ messages in thread
From: Tomi Valkeinen @ 2015-06-12 9:38 UTC (permalink / raw)
To: Kees Cook, linux-kernel
Cc: Jean-Christophe Plagniol-Villard, linux-omap, linux-fbdev
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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
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