CVE-2026-46305
Received Received - Intake
NULL Pointer Dereference in Linux Kernel rtl8723bs Driver

Publication date: 2026-06-08

Last updated on: 2026-06-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc The return value of kzalloc_flex() is used without ensuring that the allocation succeeded, and the pointer is dereferenced unconditionally. Guard the access to the allocated structure to avoid a potential NULL pointer dereference if the allocation fails.
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Meta Information
Published
2026-06-08
Last Modified
2026-06-08
Generated
2026-06-09
AI Q&A
2026-06-08
EPSS Evaluated
N/A
NVD
CVE-2026-46305
EUVD
EUVD-2026-35170
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability exists in the Linux kernel's rtl8723bs staging driver, specifically in the os_dep component. The issue arises because the function kzalloc_flex() is called to allocate memory, but its return value is not checked to confirm if the allocation was successful. As a result, the code may dereference a NULL pointer if the allocation fails, leading to a potential NULL pointer dereference.

Impact Analysis

The impact of this vulnerability is that if the memory allocation fails and the NULL pointer is dereferenced, it can cause the affected system or kernel module to crash or behave unpredictably. This can lead to denial of service or system instability.

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