BaseFortify

Publication date: 2025-10-20

Last updated on: 2025-10-21

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix potential null pointer dereference in afs_put_server afs_put_server() accessed server->debug_id before the NULL check, which could lead to a null pointer dereference. Move the debug_id assignment, ensuring we never dereference a NULL server pointer.

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Meta Information

Published

2025-10-20

Last Modified

2025-10-21

Generated

2026-07-06

AI Q&A

2025-10-20

EPSS Evaluated

2026-07-04

NVD

CVE-2025-40010

EUVD

EUVD-2025-35070

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 5.15.160 (inc) to 5.16 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a potential null pointer dereference in the Linux kernel's AFS (Andrew File System) component. Specifically, the function afs_put_server() accessed the server->debug_id field before checking if the server pointer was NULL, which could cause the system to dereference a NULL pointer and potentially crash or behave unexpectedly. The fix involved moving the debug_id assignment to ensure the server pointer is never dereferenced when NULL.

Impact Analysis

If exploited or triggered, this vulnerability could cause the Linux kernel to crash or behave unpredictably due to a null pointer dereference. This could lead to denial of service or system instability on systems using the affected AFS component.

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