linux: In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: add bounds check on firmware mac_id...
CVE-2026-74409 is fixed in linux on 1 platform by DEBIAN-CVE-2026-74409 (version 7.1.5-1), released August 15, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 14 | 7.1.5-1 | DEBIAN-CVE-2026-74409 | Aug 15, 2026 |
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