Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: mcc: prevent shift wrapping in rtw89_core_mlsr_switch() The "link_id" value comes from the user via debugfs. If it's larger than BITS_PER_LONG then that would result in shift wrapping and potentially an out of bounds access later. In fact, we can limit it to IEEE80211_MLD_MAX_NUM_LINKS (15). Fortunately, only root can write to debugfs files so the security impact is minimal.
References (2)
Core 2
Scores
CVSS v3
7.1
EPSS
0.0002
EPSS Percentile
5.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (2)
linux/Kernel
6.16.0 - 6.16.1linux
linux/linux_kernel
6.16
Published
Aug 22, 2025
Tracked Since
Feb 18, 2026