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HID: hid-thrustmaster: Fix warning in thrustmaster_probe by adding endpoint check

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syzbot has found a type mismatch between a USB pipe and the transfer
endpoint, which is triggered by the hid-thrustmaster driver[1].
There is a number of similar, already fixed issues [2].
In this case as in others, implementing check for endpoint type fixes the issue.

[1] https://syzkaller.appspot.com/bug?extid=040e8b3db6a96908d470
[2] https://syzkaller.appspot.com/bug?extid=348331f63b034f89b622

Fixes: c49c336378 ("HID: support for initialization of some Thrustmaster wheels")
Reported-by: syzbot+040e8b3db6a96908d470@syzkaller.appspotmail.com
Tested-by: syzbot+040e8b3db6a96908d470@syzkaller.appspotmail.com
Signed-off-by: Karol Przybylski <karprzy7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Karol Przybylski 2024-12-05 23:22:21 +01:00 committed by Jiri Kosina
parent 86b05bb2d4
commit 50420d7c79
1 changed files with 8 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/hid/hid-thrustmaster.c
View file

@ -170,6 +170,14 @@ static void thrustmaster_interrupts(struct hid_device *hdev)
ep = &usbif->cur_altsetting->endpoint[1];
b_ep = ep->desc.bEndpointAddress;
/* Are the expected endpoints present? */
u8 ep_addr[1] = {b_ep};
if (!usb_check_int_endpoints(usbif, ep_addr)) {
hid_err(hdev, "Unexpected non-int endpoint\n");
return;
}
for (i = 0; i < ARRAY_SIZE(setup_arr); ++i) {
memcpy(send_buf, setup_arr[i], setup_arr_sizes[i]);