[PATCH AUTOSEL 4.19 20/57] drm/nouveau/secboot/acr: fix memory leak

Sasha Levin
2018-11-04T14:07:49Z

From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>

[ Upstream commit 74a07c0a59fa372b069d879971ba4d9e341979cf ]

In case memory resources for *bl_desc* were allocated, release
them before return.

Addresses-Coverity-ID: 1472021 ("Resource leak")
Fixes: 0d466901552a ("drm/nouveau/secboot/acr: Remove VLA usage")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
index d02e183717dc..5c14d6ac855d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
@@ -801,6 +801,7 @@ acr_r352_load(struct nvkm_acr *_acr, struct nvkm_falcon *falcon,
bl = acr->hsbl_unload_blob;
} else {
nvkm_error(_acr->subdev, "invalid secure boot blob!\n");
+ kfree(bl_desc);
return -EINVAL;
}

--
2.17.1