On Wed, Aug 26, 2020 at 12:40:14PM +0200, Ard Biesheuvel wrote: > > It would be helpful if someone could explain for the non-mac80211 > enlightened readers how iwd's EAP-PEAPv0 + MSCHAPv2 support relies on > the algif_aead socket interface, and which AEAD algorithms it uses. I > assume this is part of libell? I see the problem. libell/ell/checksum.c doesn't clear the MSG_MORE flag before doing the recv(2). I was hoping nobody out there was doing this but obviously I've been proven wrong. So what I'm going to do is to specifically allow this case of a string of sendmsg(2)'s with MSG_MORE folloed by a recvmsg(2) in the same thread. I'll add a WARN_ON_ONCE so user-space can eventually be fixed. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
