drm/nouveau: prevent userspace from deleting client object (c966b627) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/gpu/drm/nouveau/nouveau_usif.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -313,7 +313,8 @@ usif_ioctl(struct drm_file filp, void __user user, u32 argc)
		if (!(ret = nvif_unpack(-ENOSYS, &data, &size, argv->v0, 0, 0, true))) {
		/* block access to objects not created via this interface */
		owner = argv->v0.owner;
		if (argv->v0.object == 0ULL)
		if (argv->v0.object == 0ULL &&
		argv->v0.type != NVIF_IOCTL_V0_DEL)
		argv->v0.owner = NVDRM_OBJECT_ANY; /* except client */
		else
		argv->v0.owner = NVDRM_OBJECT_USIF;