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HID: roccat: koneplus: reject short button reports

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The raw event callback runs before HID core validates and zero-pads the
report.  It passes the buffer to helpers which inspect data[0] and, for a
button report, read the complete struct koneplus_mouse_report_button.  A
truncated report can therefore cause an out-of-bounds read.

Require enough data for the button report before calling either helper.
Commit 47669bec44 ("HID: asus: refactor the two workqueues and init
sequence") added the same kind of raw-event length validation to hid-asus.

Fixes: 47dbdbffe1 ("HID: roccat: Add support for Roccat Kone[+] v2")
Cc: stable@vger.kernel.org
Signed-off-by: Jiale Yao <yaojiale02@163.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
This commit is contained in:
Jiale Yao 2026-09-24 22:29:12 +08:00 committed by Benjamin Tissoires
parent 93e5f7f618
commit d879e17a8b
1 changed files with 3 additions and 0 deletions
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3
drivers/hid/hid-roccat-koneplus.c
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@ -523,6 +523,9 @@ static int koneplus_raw_event(struct hid_device *hdev,
if (koneplus == NULL)
return 0;
if (size < sizeof(struct koneplus_mouse_report_button))
return 0;
koneplus_keep_values_up_to_date(koneplus, data);
if (koneplus->roccat_claimed)