Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers rsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and data[24] whenever key data is present. Those offsets are only part of the 32-byte TKIP key layout. Shorter keys used by other ciphers, such as CCMP, do not provide those bytes, so the unconditional copies can read past the supplied key buffer. Only copy the MIC keys for TKIP, and reject malformed TKIP keys that are shorter than the expected 32-byte layout. [drop useless length check]
References
- https://git.kernel.org/stable/c/5207727e53fba1e3a6fce9b2c15b6b8b06c6438b
- https://git.kernel.org/stable/c/55b86ef6c2e68879ffd95203b011ef42a013ab88
- https://git.kernel.org/stable/c/5902e3c08c63d65724772f74d65b9fb032625dca
- https://git.kernel.org/stable/c/6937b06d55b528e961feff8cc083b97ede622e02
- https://git.kernel.org/stable/c/6b6690ac5c35e803df14afdc44312d11e8a60893
- https://git.kernel.org/stable/c/843fe9bc583b7686ca68312ac9319c9240a73c03
- https://git.kernel.org/stable/c/ebd7172f8c4edc232738ef50338fb773c6f6c208
FAQ
What is CVE-2026-93807?
CVE-2026-93807 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers rsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and ...
How severe is CVE-2026-93807?
CVSS scoring is not yet available for CVE-2026-93807. Check NVD for updates.
Is there a patch for CVE-2026-93807?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.