BaseFortify

Publication date: 2025-12-16

Last updated on: 2025-12-18

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: PCI/AER: Fix NULL pointer access by aer_info The kzalloc(GFP_KERNEL) may return NULL, so all accesses to aer_info->xxx will result in kernel panic. Fix it.

CVSS Scores

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Meta Information

Published

2025-12-16

Last Modified

2025-12-18

Generated

2026-07-06

AI Q&A

2025-12-16

EPSS Evaluated

2026-07-05

NVD

CVE-2025-68309

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability occurs in the Linux kernel's PCI/AER component where a function called kzalloc with GFP_KERNEL flag may return NULL. If this happens, subsequent accesses to the aer_info structure will dereference a NULL pointer, causing a kernel panic (system crash). The fix ensures that the code properly handles the case when kzalloc returns NULL to prevent the kernel panic.

Impact Analysis

This vulnerability can cause a kernel panic, which leads to a system crash and potential denial of service. This can disrupt normal operations, cause data loss, or require system reboots, impacting system availability and reliability.

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