linux-kernel - [PATCH] accel/qaic: Fix slicing memory leak

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Message-ID: <20230721183201.11001-1-quic_jhugo@quicinc.com>
Date:   Fri, 21 Jul 2023 12:32:01 -0600
From:   Jeffrey Hugo <quic_jhugo@...cinc.com>
To:     <dri-devel@...ts.freedesktop.org>
CC:     <ogabbay@...nel.org>, <jacek.lawrynowicz@...ux.intel.com>,
        <stanislaw.gruszka@...ux.intel.com>, <quic_carlv@...cinc.com>,
        <quic_ajitpals@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@...cinc.com>,
        Jeffrey Hugo <quic_jhugo@...cinc.com>
Subject: [PATCH] accel/qaic: Fix slicing memory leak

From: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@...cinc.com>

Slicing configuration data from user is stored in a temporary buffer
which should be freed unconditionally.

Fixes: ff13be830333 ("accel/qaic: Add datapath")
Signed-off-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@...cinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@...cinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@...cinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@...cinc.com>
---
 drivers/accel/qaic/qaic_data.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c
index e9a1cb779b30..6b6d981a71be 100644
--- a/drivers/accel/qaic/qaic_data.c
+++ b/drivers/accel/qaic/qaic_data.c
@@ -1021,6 +1021,7 @@ int qaic_attach_slice_bo_ioctl(struct drm_device *dev, void *data, struct drm_fi
 	bo->dbc = dbc;
 	srcu_read_unlock(&dbc->ch_lock, rcu_id);
 	drm_gem_object_put(obj);
+	kfree(slice_ent);
 	srcu_read_unlock(&qdev->dev_lock, qdev_rcu_id);
 	srcu_read_unlock(&usr->qddev_lock, usr_rcu_id);
 
-- 
2.40.1