CVE-2023-53476
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-01

Last updated on: 2025-10-02

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() This condition needs to match the previous "if (epcp->state == LISTEN) {" exactly to avoid a NULL dereference of either "listen_ep" or "ep". The problem is that "epcp" has been re-assigned so just testing "if (epcp->state == LISTEN) {" a second time is not sufficient.
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Meta Information
Published
2025-10-01
Last Modified
2025-10-02
Generated
2026-06-16
AI Q&A
2025-10-01
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53476
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a potential NULL pointer dereference in the Linux kernel's iw_cxgb4 driver, specifically in the function c4iw_fill_res_cm_id_entry(). The issue arises because a condition checking the state of 'epcp' is not properly matched after 'epcp' has been reassigned, which can lead to dereferencing a NULL pointer for 'listen_ep' or 'ep'.

Impact Analysis

The impact of this vulnerability could be a kernel crash or system instability due to a NULL pointer dereference, potentially leading to denial of service or other unintended behavior in systems using the affected Linux kernel driver.

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