CVE-2025-68254
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/12/2025
Last modified:
19/01/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing<br />
<br />
The Extended Supported Rates (ESR) IE handling in OnBeacon accessed<br />
*(p + 1 + ielen) and *(p + 2 + ielen) without verifying that these<br />
offsets lie within the received frame buffer. A malformed beacon with<br />
an ESR IE positioned at the end of the buffer could cause an<br />
out-of-bounds read, potentially triggering a kernel panic.<br />
<br />
Add a boundary check to ensure that the ESR IE body and the subsequent<br />
bytes are within the limits of the frame before attempting to access<br />
them.<br />
<br />
This prevents OOB reads caused by malformed beacon frames.
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/38292407c2bb5b2b3131aaace4ecc7a829b40b76
- https://git.kernel.org/stable/c/502ddcc405b69fa92e0add6c1714d654504f6fd7
- https://git.kernel.org/stable/c/bb5940193d813449540d8d3a82abc045be41f48a
- https://git.kernel.org/stable/c/bf323db1d883c209880bd92f3b12503e3531c3fc
- https://git.kernel.org/stable/c/c03cb111628924827351e19baa5b073e9b0d723d
- https://git.kernel.org/stable/c/c173ce97d3f0f0c0fefa39139d6d04ba60b5db22
- https://git.kernel.org/stable/c/d1ab7f9cee22e7b8a528da9ac953e4193b96cda5



