CVE-2026-23251
Analyzed Analyzed - Analysis Complete
Use-After-Free in Linux Kernel XFS Due to Improper Pointer Handling

Publication date: 2026-03-18

Last updated on: 2026-05-21

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: xfs: only call xf{array,blob}_destroy if we have a valid pointer Only call the xfarray and xfblob destructor if we have a valid pointer, and be sure to null out that pointer afterwards. Note that this patch fixes a large number of commits, most of which were merged between 6.9 and 6.10.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-03-18
Last Modified
2026-05-21
Generated
2026-06-16
AI Q&A
2026-03-18
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23251
EUVD
EUVD-2026-12856
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.13 (inc) to 6.18.16 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.6 (exc)
linux linux_kernel From 6.10 (inc) to 6.12.75 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability in the Linux kernel relates to the xfs filesystem code where destructor functions xfarray_destroy and xfblob_destroy were being called without verifying if the pointer was valid.

The fix ensures that these destructors are only called if the pointer is valid and that the pointer is nullified afterwards to prevent potential misuse.

This patch addresses multiple commits merged between kernel versions 6.9 and 6.10.

Impact Analysis

I don't know

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

I don't know

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-23251. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart