Commit 7fdd4395 authored by Pietro Borrello's avatar Pietro Borrello Committed by Jialin Zhang
Browse files

HID: check empty report_list in hid_validate_values()

stable inclusion
from stable-v5.10.166
commit 5dc3469a1170dd1344d262a332b26994214eeb58
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I6KCIO
CVE: CVE-2023-1073

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5dc3469a1170dd1344d262a332b26994214eeb58



--------------------------------

Add a check for empty report_list in hid_validate_values().
The missing check causes a type confusion when issuing a list_entry()
on an empty report_list.
The problem is caused by the assumption that the device must
have valid report_list. While this will be true for all normal HID
devices, a suitably malicious device can violate the assumption.

Fixes: 1b15d2e5 ("HID: core: fix validation of report id 0")
Signed-off-by: default avatarPietro Borrello <borrello@diag.uniroma1.it>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarLin Yujun <linyujun809@huawei.com>
Reviewed-by: default avatarZhang Jianhua <chris.zjh@huawei.com>
Reviewed-by: default avatarLiao Chang <liaochang1@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parent 3ebad3fa
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