CVE-2024-50015
Description
An inode corruption flaw was found in the Linux kernel's Ext4 file system functionality related to how a user can interrupt a write using the dax_iomap_rw()function. This flaw allows a local user to make non-fatal mistakes with Ext4, leading to a file system denial of service.
Statement
The issue is within the logic of Ext4 when dax_iomap_rw() fails or similar, such as when the process is terminated by a user that is handled by dax_iomap_iter(). This is not a fatal error and doesn't lead to kernel panic or the file system being broken. However, it can lead to some issues in Ext4 that can be fixed later with fsck. This is considered a Low impact security issue, due to the bug in the logic of Ext4, but is rated Moderate because it falls between Low and Moderate levels. This issues does not affect Red Hat Enterprise Linux 8 as it uses an older version of Ext4. Red Hat Enterprise Linux 9 will be fixed in the latest versions.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.4 | 5.5 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | High | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
