From 816c9311f1144a03da1fdc4feb2f6b0d3299fca0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 9 Jan 2017 11:20:16 +0300 Subject: [PATCH] misc: mic: double free on ioctl error path This function only has one caller. Freeing "vdev" here leads to a use after free bug. There are several other error paths in this function but this is the only one which frees "vdev". It looks like the kfree() can be safely removed. Fixes: 61e9c905df78 ("misc: mic: Enable VOP host side functionality") Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mic/vop/vop_vringh.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/misc/mic/vop/vop_vringh.c b/drivers/misc/mic/vop/vop_vringh.c index 88e45234d527..fed992e2c258 100644 --- a/drivers/misc/mic/vop/vop_vringh.c +++ b/drivers/misc/mic/vop/vop_vringh.c @@ -292,7 +292,6 @@ static int vop_virtio_add_device(struct vop_vdev *vdev, if (ret) { dev_err(vop_dev(vdev), "%s %d err %d\n", __func__, __LINE__, ret); - kfree(vdev); return ret; }