Commit 3b0daecf authored by Dave Airlie's avatar Dave Airlie
Browse files

amdkfd: use calloc instead of kzalloc to avoid integer overflow 



This uses calloc instead of doing the multiplication which might
overflow.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 6d837271

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

+2 −2
Original line number Diff line number Diff line
@@ -779,8 +779,8 @@ static int kfd_ioctl_get_process_apertures_new(struct file *filp, 
	 * nodes, but not more than args->num_of_nodes as that is

	 * the amount of memory allocated by user

	 */

	pa = kzalloc((sizeof(struct kfd_process_device_apertures) *

				args->num_of_nodes), GFP_KERNEL);

	pa = kcalloc(args->num_of_nodes, sizeof(struct kfd_process_device_apertures),

		     GFP_KERNEL);

	if (!pa)

		return -ENOMEM;