CVE-2025-38657
- Source
- https://cve.org/CVERecord?id=CVE-2025-38657
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38657.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-38657
- Downstream
- Published
- 2025-08-22T16:01:00Z
- Modified
- 2026-08-12T03:51:23Z
- Severity
-
- 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H CVSS Calculator
- Summary
- wifi: rtw89: mcc: prevent shift wrapping in rtw89_core_mlsr_switch()
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38657.json" }- References
-
- https://git.kernel.org/stable/c/417cfa9cc44fbe6bceab786f9a4ee5a210f1288e
- https://git.kernel.org/stable/c/53cf488927a0f79968f9c03c4d1e00d2a79731c3
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38657.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-38657
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git