HID: thrustmaster: fix memory leak in thrustmaster_interrupts()

JIRA: https://issues.redhat.com/browse/RHEL-81416
CVE: CVE-2024-57993

commit 09d5463
Author: Qasim Ijaz <qasdev00@gmail.com>
Date:   Thu Mar 27 23:11:46 2025 +0000

    HID: thrustmaster: fix memory leak in thrustmaster_interrupts()

    In thrustmaster_interrupts(), the allocated send_buf is not
    freed if the usb_check_int_endpoints() check fails, leading
    to a memory leak.

    Fix this by ensuring send_buf is freed before returning in
    the error path.

    Fixes: 50420d7 ("HID: hid-thrustmaster: Fix warning in thrustmaster_probe by adding endpoint check")
    Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
    Signed-off-by: Jiri Kosina <jkosina@suse.com>

Signed-off-by: CKI Backport Bot <cki-ci-bot+cki-gitlab-backport-bot@redhat.com>

Author: CKI Backport Bot

drivers/hid/hid-thrustmaster.c

@@ -174,6 +174,7 @@ static void thrustmaster_interrupts(struct hid_device *hdev)
 	u8 ep_addr[2] = {b_ep, 0};
 
 	if (!usb_check_int_endpoints(usbif, ep_addr)) {
+		kfree(send_buf);
 		hid_err(hdev, "Unexpected non-int endpoint\n");
 		return;
 	}