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Message-Id: <20230320005636.1429242-1-sashal@kernel.org>
Date: Sun, 19 Mar 2023 20:56:24 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Lee Jones <lee@...nel.org>, Jiri Kosina <jkosina@...e.cz>,
Sasha Levin <sashal@...nel.org>, david.rheinsberg@...il.com,
jikos@...nel.org, benjamin.tissoires@...hat.com,
linux-input@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 01/12] HID: uhid: Over-ride the default maximum data buffer value with our own
From: Lee Jones <lee@...nel.org>
[ Upstream commit 1c5d4221240a233df2440fe75c881465cdf8da07 ]
The default maximum data buffer size for this interface is UHID_DATA_MAX
(4k). When data buffers are being processed, ensure this value is used
when ensuring the sanity, rather than a value between the user provided
value and HID_MAX_BUFFER_SIZE (16k).
Signed-off-by: Lee Jones <lee@...nel.org>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/hid/uhid.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index fc06d8bb42e0f..ba0ca652b9dab 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -395,6 +395,7 @@ struct hid_ll_driver uhid_hid_driver = {
.parse = uhid_hid_parse,
.raw_request = uhid_hid_raw_request,
.output_report = uhid_hid_output_report,
+ .max_buffer_size = UHID_DATA_MAX,
};
EXPORT_SYMBOL_GPL(uhid_hid_driver);
--
2.39.2
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