CVE-2026-74409 (GCVE-0-2026-74409)
Vulnerability from cvelistv5
Published
2026-08-15 05:59
Modified
2026-10-16 19:05
Severity ?
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware mac_id in link lookup The mac_id field in RX descriptors is 8 bits wide (0-255), but assoc_link_on_macid[] has only RTW89_MAX_MAC_ID_NUM (128) entries. While the driver currently assigns mac_id values below 128, the descriptor value comes from firmware and is not validated before use as an array index. Add a defensive bounds check in rtw89_assoc_link_rcu_dereference() to guard against out-of-range firmware values.
References
Impacted products
Vendor Product Version
Linux Linux Version: 144c6cd24b3556e6e7a14271cee57a42ebf97450
Version: 144c6cd24b3556e6e7a14271cee57a42ebf97450
Version: 144c6cd24b3556e6e7a14271cee57a42ebf97450
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