CVE-2023-53384
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-18

Last updated on: 2025-12-11

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiex_handle_uap_rx_forward()', always check the value returned by 'skb_copy()' to avoid potential NULL pointer dereference in 'mwifiex_uap_queue_bridged_pkt()', and drop original skb in case of copying failure. Found by Linux Verification Center (linuxtesting.org) with SVACE.
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Meta Information
Published
2025-09-18
Last Modified
2025-12-11
Generated
2026-06-16
AI Q&A
2025-09-18
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53384
Affected Vendors & Products
Showing 8 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 3.7 (inc) to 4.14.326 (exc)
linux linux_kernel From 4.15 (inc) to 4.19.295 (exc)
linux linux_kernel From 4.20 (inc) to 5.4.257 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.195 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.132 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.53 (exc)
linux linux_kernel From 6.2 (inc) to 6.4.16 (exc)
linux linux_kernel From 6.5 (inc) to 6.5.3 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a potential NULL pointer dereference in the Linux kernel's mwifiex wifi driver. Specifically, in the function mwifiex_handle_uap_rx_forward(), the code did not properly check the return value of skb_copy(), which could result in a NULL pointer dereference in mwifiex_uap_queue_bridged_pkt(). The fix involves always checking the return value of skb_copy() and dropping the original skb if copying fails to avoid this issue.

Impact Analysis

If exploited, this vulnerability could cause the Linux kernel to dereference a NULL pointer, potentially leading to a kernel crash or denial of service in the wifi driver. This could disrupt network connectivity or system stability on affected devices.

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