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mirror of https://git.kernel.org/pub/scm/network/wireless/iwd.git synced 2025-03-11 13:40:38 +01:00
Denis Kenzior 1ef97e5cbc eapol: Silently discard invalid EAPoL frames
Do not fail an ongoing handshake when an invalid EAPoL frame is
received.  Instead, follow the intent of 802.11-2020 section 12.7.2:
"EAPOL-Key frames containing invalid field values shall be silently
discarded."

This prevents a denial-of-service attack where receipt of an invalid,
unencrypted EAPoL 1/4 frame generated by an adversary results in iwd
terminating an ongoing connection.

Reported-by: Domien Schepers <schepers.d@northeastern.edu>
2022-05-10 10:01:08 -05:00
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