From: Guenter Roeck Date: Wed, 8 Jul 2026 00:52:54 +0000 (-0700) Subject: hwmon: (corsair-cpro) Stop device IO before calling hid_hw_stop X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=94c87871b051d7ad758828a805215a2ec194512a;p=thirdparty%2Fkernel%2Flinux.git hwmon: (corsair-cpro) Stop device IO before calling hid_hw_stop 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 Fixes: 40c3a44542257 ("hwmon: add Corsair Commander Pro driver") Signed-off-by: Guenter Roeck --- diff --git a/drivers/hwmon/corsair-cpro.c b/drivers/hwmon/corsair-cpro.c index b6e508e43fa1..8354a002f4c5 100644 --- a/drivers/hwmon/corsair-cpro.c +++ b/drivers/hwmon/corsair-cpro.c @@ -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;