PT-2025-49752 · Ext4+3 · Ext4+3
CVE-2023-53861
·
Published
2023-08-01
·
Updated
2026-07-01
CVSS v3.1
7.0
High
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel related to group validation within the ext4 filesystem. Specifically, the
ext4 mb good group function lacks a NULL check before performing a group corruption check, potentially leading to a kernel crash if the group (grp) is NULL. This issue involves accessing memory of a NULL group, triggering the crash.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Red Hat
Red Os
Ext4