CVE-2025-38657
wifi: rtw89: mcc: prevent shift wrapping in rtw89_core_mlsr_switch()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
9dd85e739ce0765f022014c3e0713e1007d7ef60 < 417cfa9cc44fbe6bceab786f9a4ee5a210f1288e 9dd85e739ce0765f022014c3e0713e1007d7ef60 < 53cf488927a0f79968f9c03c4d1e00d2a79731c3
Linux / Linux
6.16