* [PATCH] firmware: arm_scmi: Use after free in scmi_create_protocol_device()
@ 2018-04-27 14:06 Dan Carpenter
2018-04-27 14:47 ` Sudeep Holla
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2018-04-27 14:06 UTC (permalink / raw)
To: linux-arm-kernel
We need to return here instead of setting up the freed sdev device as a
transport.
Fixes: 907b6d14911d ("firmware: arm_scmi: add per-protocol channels support using idr objects")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 14b147135a0c..2455be8cbc4f 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -778,6 +778,7 @@ scmi_create_protocol_device(struct device_node *np, struct scmi_info *info,
if (scmi_mbox_chan_setup(info, &sdev->dev, prot_id)) {
dev_err(&sdev->dev, "failed to setup transport\n");
scmi_device_destroy(sdev);
+ return;
}
/* setup handle now as the transport is ready */
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2018-04-27 14:06 [PATCH] firmware: arm_scmi: Use after free in scmi_create_protocol_device() Dan Carpenter
2018-04-27 14:47 ` Sudeep Holla
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