CVE-2026-46305 Details
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.
A vulnerability in the Linux kernel's staging driver for the RTL8723BS wireless chipset can lead to a NULL pointer dereference. This issue arises because the return value of the memory allocation function 'kzalloc_flex()' is used without checking if the allocation was successful, allowing for an unguarded dereference of the pointer. The vulnerability affects the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0a5f411becfb7c57aa89827213d31ef23a03d75a | kernel.org | Patch |
| https://git.kernel.org/stable/c/7d4024037ee309a8f0cb86b4093d59da0e135db8 | kernel.org | |
| https://git.kernel.org/stable/c/bc851db06045a40c18233dd76ef0562d7f8bb6db | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 7.0, < 7.0.7 7.1 rc1 7.1 rc2 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | kernel.org |
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 8, 2026 | New CVE Received | kernel.org |