CVE-2023-53861
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ext4: correct grp validation in ext4_mb_good_group Group corruption check will access memory of grp and will trigger kernel crash if grp is NULL. So do NULL check before corruption check.

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Meta Information

Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-07-06
AI Q&A
2025-12-09
EPSS Evaluated
2026-07-05
NVD
CVE-2023-53861
EUVD
EUVD-2023-60135

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel's ext4 filesystem involves improper validation of a group (grp) in the function ext4_mb_good_group. Specifically, the group corruption check accesses memory of grp without verifying if grp is NULL, which can lead to a kernel crash. The fix involves adding a NULL check before performing the corruption check to prevent this crash.

Impact Analysis

If exploited or triggered, this vulnerability can cause the Linux kernel to crash, leading to system instability or denial of service. This could disrupt normal operations on systems using the ext4 filesystem.

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