CVE-2025-68255 Details
Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing The Supported Rates IE length from an incoming Association Request frame was used directly as the memcpy() length when copying into a fixed-size 16-byte stack buffer (supportRate). A malicious station can advertise an IE length larger than 16 bytes, causing a stack buffer overflow. Clamp ie_len to the buffer size before copying the Supported Rates IE, and correct the bounds check when merging Extended Supported Rates to prevent a second potential overflow. This prevents kernel stack corruption triggered by malformed association requests.
A stack buffer overflow vulnerability has been identified in the Linux kernel's RTL8723BS Wi-Fi driver, specifically in the parsing of the Supported Rates Information Element (IE) within Association Request frames. This issue arises because the length of the Supported Rates IE is used directly to determine the length of data to be copied into a fixed-size 16-byte stack buffer. Maliciously crafted Association Requests can exploit this by advertising an IE length greater than 16 bytes, leading to a buffer overflow and potential corruption of the kernel stack. The vulnerability affects the Linux kernel staging area driver for RTL8723BS, in versions prior to the patching commit.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been patched. The specific commit that addresses this issue is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 16, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/25411f5fcf5743131158f337c99c2bbf3f8477f5 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/34620eb602aa432f090b2b784ee5c5070fb16cf9 | kernel.org | |
| https://git.kernel.org/stable/c/4445adedae770037078803d1ce41f9e88a1944b6 | kernel.org | |
| https://git.kernel.org/stable/c/49b7806851f93fd342838c93f4f765e0cc5029b0 | kernel.org | |
| https://git.kernel.org/stable/c/61871c83259a511980ec2664964cecc69005398b | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/6ef0e1c10455927867cac8f0ed6b49f328f8cf95 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0 | kernel.org | |
| https://git.kernel.org/stable/c/e841d8ea722315b781c4fc5bf4f7670fbca88875 | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 30, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jan 19, 2026 | CVE Modified | kernel.org |
| Jan 11, 2026 | CVE Modified | kernel.org |
| Dec 16, 2025 | New CVE Received | kernel.org |