This is a note to let you know that I've just added the patch titled
HID: potential dereference of null pointer
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hid-potential-dereference-of-null-pointer.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 13251ce1dd9bb525da2becb9b26fdfb94ca58659 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Date: Wed, 15 Dec 2021 16:36:05 +0800
Subject: HID: potential dereference of null pointer
From: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
commit 13251ce1dd9bb525da2becb9b26fdfb94ca58659 upstream.
The return value of devm_kzalloc() needs to be checked.
To avoid hdev->dev->driver_data to be null in case of the failure of
alloc.
Fixes: 14c9c014babe ("HID: add vivaldi HID driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211215083605.117638-1-jiasheng@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-vivaldi.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/hid/hid-vivaldi.c
+++ b/drivers/hid/hid-vivaldi.c
@@ -57,6 +57,9 @@ static int vivaldi_probe(struct hid_devi
int ret;
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
hid_set_drvdata(hdev, drvdata);
ret = hid_parse(hdev);
Patches currently in stable-queue which might be from jiasheng@xxxxxxxxxxx are
queue-5.10/hid-potential-dereference-of-null-pointer.patch
