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hwmon: (corsair-cpro) Stop device IO before calling hid_hw_stop

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Calling hid_hw_stop() does not stop the device IO.
This results in a race condition between hid_input_report() and the point
immediately following the execution of hid_device_io_start() within
the driver probe function. If the probe operation fails after "io start"
has been initiated, this race condition will result in a UAF vulnerability.

Fix the problem by calling hid_device_io_stop() before calling
hid_hw_stop().

Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: 40c3a44542 ("hwmon: add Corsair Commander Pro driver")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2026-07-07 17:52:54 -07:00
parent 9ab8656548
commit 94c87871b0
1 changed files with 1 additions and 0 deletions
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drivers/hwmon/corsair-cpro.c
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@ -645,6 +645,7 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id)
out_hw_close:
hid_hw_close(hdev);
hid_device_io_stop(hdev);
out_hw_stop:
hid_hw_stop(hdev);
return ret;