CVE-2025-38657
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 9dd85e739ce0765f022014c3e0713e1007d7ef60 < 417cfa9cc44fbe6bceab786f9a4ee5a210f1288e | affected |
| Linux | Linux | 9dd85e739ce0765f022014c3e0713e1007d7ef60 < 53cf488927a0f79968f9c03c4d1e00d2a79731c3 | affected |
| Linux | Linux | 6.16 | affected |
| Linux | Linux | 0 < 6.16 | unaffected |
| Linux | Linux | 6.16.1 <= 6.16.* | unaffected |
| Linux | Linux | 6.17 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/417cfa9cc44fbe6bceab786f9a4ee5a210f1288e
- https://git.kernel.org/stable/c/53cf488927a0f79968f9c03c4d1e00d2a79731c3
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