wifi: rtw89: add bounds check on firmware mac_id in link lookup
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.40, 7.1.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 144c6cd24b3556e6e7a14271cee57a42ebf97450 · fixed in ad445de67359f24088d4305c05fbd7e34c4e35e3; From 144c6cd24b3556e6e7a14271cee57a42ebf97450 · fixed in 920101305e7601a33b9e01019f4ca526af2526ae; From 144c6cd24b3556e6e7a14271cee57a42ebf97450 · fixed in 6d88244bb129755acca696f9227200f4a2d106a6
- Linux Linux
6.14
- KernelLinux
From 6.14.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5