From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Lee Jones <lee@kernel.org>, Jiri Kosina <jkosina@suse.cz>,
Sasha Levin <sashal@kernel.org>,
david.rheinsberg@gmail.com, jikos@kernel.org,
benjamin.tissoires@redhat.com, linux-input@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 1/9] HID: uhid: Over-ride the default maximum data buffer value with our own
Date: Sun, 19 Mar 2023 20:57:24 -0400 [thread overview]
Message-ID: <20230320005732.1429533-1-sashal@kernel.org> (raw)
From: Lee Jones <lee@kernel.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@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/uhid.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 333b6a769189c..b7efc5c055be1 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -399,6 +399,7 @@ 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
next reply other threads:[~2023-03-20 1:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 0:57 Sasha Levin [this message]
2023-03-20 0:57 ` [PATCH AUTOSEL 4.14 3/9] HID: intel-ish-hid: ipc: Fix potential use-after-free in work function Sasha Levin
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