shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 02:50:49 +09:00
Code Issues Packages Projects Releases Wiki Activity

HID: multitouch: Add NULL check in mt_input_configured

Browse Source 
[ Upstream commit 9b8e2220d3a052a690b1d1b23019673e612494c5 ]

devm_kasprintf() can return a NULL pointer on failure,but this
returned value in mt_input_configured() is not checked.
Add NULL check in mt_input_configured(), to handle kernel NULL
pointer dereference error.

Fixes: 4794394635 ("HID: multitouch: Correct devm device reference for hidinput input_dev name")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Charles Han
2024-11-15 14:26:21 +08:00
committed by Greg Kroah-Hartman
parent 457bdeffca
commit 4e7113f591
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/hid/hid-multitouch.c
View File

@@ -1668,9 +1668,12 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
break; break;
} }
if (suffix) if (suffix) {
hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", hdev->name, suffix); "%s %s", hdev->name, suffix);
if (!hi->input->name)
return -ENOMEM;
}
return 0; return 0;
} }