CVE-2025-38657
Severity CVSS v4.0:
Pending analysis
Type:
CWE-125
Out-of-bounds Read
Publication date:
22/08/2025
Last modified:
26/11/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
wifi: rtw89: mcc: prevent shift wrapping in rtw89_core_mlsr_switch()<br />
<br />
The "link_id" value comes from the user via debugfs. If it&#39;s larger<br />
than BITS_PER_LONG then that would result in shift wrapping and<br />
potentially an out of bounds access later. In fact, we can limit it<br />
to IEEE80211_MLD_MAX_NUM_LINKS (15).<br />
<br />
Fortunately, only root can write to debugfs files so the security<br />
impact is minimal.
Impact
Base Score 3.x
7.10
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:6.16:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page