CVE-2026-74409
CVE CVE-2026-74409EUVD EUVD-2026-59556Published 2026-08-15T05:59:17.000ZLast changed 2026-08-17T05:46:52.000ZCVSS 8.8
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 144c6cd24b3556e6e7a14271cee57a42ebf97450 <ad445de67359f24088d4305c05fbd7e34c4e35e3; 144c6cd24b3556e6e7a14271cee57a42ebf97450 <6d88244bb129755acca696f9227200f4a2d106a6; 6.14; patch: 0; 144c6cd24b3556e6e7a14271cee57a42ebf97450 <920101305e7601a33b9e01019f4ca526af2526ae; patch: 6.18.40; patch: 7.1.5; patch: 7.2
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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