From: Chaitanya Kulkarni kch@nvidia.com
[ Upstream commit 99c2dcc8ffc24e210a3aa05c204d92f3ef460b05 ]
Free dhchap_secret in nvme_ctrl_dhchap_ctrl_secret_store() before we return when nvme_auth_generate_key() returns error.
Fixes: f50fff73d620 ("nvme: implement In-Band authentication") Signed-off-by: Chaitanya Kulkarni kch@nvidia.com Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Sagi Grimberg sagi@grimberg.me Signed-off-by: Keith Busch kbusch@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/host/core.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index c2096f0d50537..a275e7e2969e9 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3929,8 +3929,10 @@ static ssize_t nvme_ctrl_dhchap_ctrl_secret_store(struct device *dev, int ret;
ret = nvme_auth_generate_key(dhchap_secret, &key); - if (ret) + if (ret) { + kfree(dhchap_secret); return ret; + } kfree(opts->dhchap_ctrl_secret); opts->dhchap_ctrl_secret = dhchap_secret; ctrl_key = ctrl->ctrl_key; @@ -3938,7 +3940,8 @@ static ssize_t nvme_ctrl_dhchap_ctrl_secret_store(struct device *dev, ctrl->ctrl_key = key; mutex_unlock(&ctrl->dhchap_auth_mutex); nvme_auth_free_key(ctrl_key); - } + } else + kfree(dhchap_secret); /* Start re-authentication */ dev_info(ctrl->device, "re-authenticating controller\n"); queue_work(nvme_wq, &ctrl->dhchap_auth_work);