CVEvulnerability
CVE-2025-68255
8.8 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-12-16
- Last modified
- 2026-10-14
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/25411f5fcf5743131158f337c99c2bbf3f8477f5 git.kernel.org
- https://git.kernel.org/stable/c/34620eb602aa432f090b2b784ee5c5070fb16cf9 git.kernel.org
- https://git.kernel.org/stable/c/4445adedae770037078803d1ce41f9e88a1944b6 git.kernel.org
- https://git.kernel.org/stable/c/49b7806851f93fd342838c93f4f765e0cc5029b0 git.kernel.org
- https://git.kernel.org/stable/c/61871c83259a511980ec2664964cecc69005398b git.kernel.org
- https://git.kernel.org/stable/c/6ef0e1c10455927867cac8f0ed6b49f328f8cf95 git.kernel.org
- https://git.kernel.org/stable/c/d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0 git.kernel.org
- https://git.kernel.org/stable/c/e841d8ea722315b781c4fc5bf4f7670fbca88875 git.kernel.org