In the Linux kernel, the following vulnerability has been resolved: platform/x86: wmi: Fix opening of char device Since commit fa1f68db6ca7 ("drivers: misc: pass miscdevice pointer via file private data"), the miscdevice stores a pointer to itself inside filp->private_data, which means that private_data will not be NULL when wmi_char_open() is called. This might cause memory corruption should wmi_char_open() be unable to find its driver, something which can happen when the associated WMI device is deleted in wmi_free_devices(). Fix the problem by using the miscdevice pointer to retrieve the WMI device data associated with a char device using container_of(). This also avoids wmi_char_open() picking a wrong WMI device bound to a driver with the same name as the original driver.
History

Tue, 24 Sep 2024 11:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:rhel_eus:8.8

Wed, 21 Aug 2024 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Tus
CPEs cpe:/o:redhat:rhel_aus:8.6
cpe:/o:redhat:rhel_e4s:8.6
cpe:/o:redhat:rhel_tus:8.6
Vendors & Products Redhat rhel Aus
Redhat rhel E4s
Redhat rhel Tus

Fri, 16 Aug 2024 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:rhel_eus:9.2
cpe:/a:redhat:rhel_eus:9.2::nfv
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat rhel Eus

Thu, 08 Aug 2024 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8::nfv
cpe:/o:redhat:enterprise_linux:8
Vendors & Products Redhat
Redhat enterprise Linux

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-21T15:31:55.875Z

Updated: 2024-11-04T14:54:08.126Z

Reserved: 2024-05-21T15:19:24.261Z

Link: CVE-2023-52864

cve-icon Vulnrichment

Updated: 2024-08-02T23:11:36.054Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-21T16:15:23.317

Modified: 2024-11-21T08:40:45.090

Link: CVE-2023-52864

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2023-52864 - Bugzilla