CVE-2025-68254 Details
Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing The Extended Supported Rates (ESR) IE handling in OnBeacon accessed *(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these offsets lie within the received frame buffer. A malformed beacon with an ESR IE positioned at the end of the buffer could cause an out-of-bounds read, potentially triggering a kernel panic. Add a boundary check to ensure that the ESR IE body and the subsequent bytes are within the limits of the frame before attempting to access them. This prevents OOB reads caused by malformed beacon frames.
A vulnerability in the Linux kernel's RTL8723BS Wi-Fi driver has been addressed. The issue involved an out-of-bounds read in the OnBeacon function, where the Extended Supported Rates (ESR) Information Element (IE) was accessed without proper boundary checks. This flaw could be exploited by a malformed beacon frame, potentially leading to a kernel panic. The vulnerability affects the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched version can be found in the Linux kernel documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 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
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/38292407c2bb5b2b3131aaace4ecc7a829b40b76 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/502ddcc405b69fa92e0add6c1714d654504f6fd7 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/bb5940193d813449540d8d3a82abc045be41f48a | kernel.org | |
| https://git.kernel.org/stable/c/bf323db1d883c209880bd92f3b12503e3531c3fc | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/c03cb111628924827351e19baa5b073e9b0d723d | kernel.org | |
| https://git.kernel.org/stable/c/c173ce97d3f0f0c0fefa39139d6d04ba60b5db22 | kernel.org | |
| https://git.kernel.org/stable/c/d1ab7f9cee22e7b8a528da9ac953e4193b96cda5 | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
| Realtek RTL8723BS | 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 |
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