On 01/15, Sumera Priyadarsini wrote:
> On Fri, Jan 15, 2021 at 6:39 PM Colin King <colin.king@xxxxxxxxxxxxx> wrote:
> >
> > From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> >
> > Currently the kmalloc allocation for config is not being null
> > checked and could potentially lead to a null pointer dereference.
> > Fix this by adding the missing null check.
> >
> > Addresses-Coverity: ("Dereference null return value")
> > Fixes: 2df7af93fdad ("drm/vkms: Add vkms_config type")
> > Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Good catch, thank you!
>
> Reviewed-by: Sumera Priyadarsini <sylphrenadin@xxxxxxxxx>
Applied to drm-misc-next.
Thanks,
Melissa Wen
> > ---
> > drivers/gpu/drm/vkms/vkms_drv.c | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
> > index 708f7f54001d..2173b82606f6 100644
> > --- a/drivers/gpu/drm/vkms/vkms_drv.c
> > +++ b/drivers/gpu/drm/vkms/vkms_drv.c
> > @@ -188,7 +188,11 @@ static int vkms_create(struct vkms_config *config)
> >
> > static int __init vkms_init(void)
> > {
> > - struct vkms_config *config = kmalloc(sizeof(*config), GFP_KERNEL);
> > + struct vkms_config *config;
> > +
> > + config = kmalloc(sizeof(*config), GFP_KERNEL);
> > + if (!config)
> > + return -ENOMEM;
> >
> > default_config = config;
> >
> > --
> > 2.29.2
> >
> regards,
> Sumera
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