Re: [syzbot] [crypto?] KASAN: slab-out-of-bounds Read in extract_iter_to_sg

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Subject: Re: [syzbot] [crypto?] KASAN: slab-out-of-bounds Read in extract_iter_to_sg
From: David Howells <dhowells@xxxxxxxxxx>
Date: Thu, 15 Jun 2023 15:21:32 +0100
Cc: dhowells@xxxxxxxxxx, syzbot <syzbot+6efc50cc1f8d718d6cb7@xxxxxxxxxxxxxxxxxxxxxxxxx>, davem@xxxxxxxxxxxxx, kuba@xxxxxxxxxx, linux-crypto@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, syzkaller-bugs@xxxxxxxxxxxxxxxx
In-reply-to: <1657853.1686757902@warthog.procyon.org.uk>
Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903
References: <1657853.1686757902@warthog.procyon.org.uk> <000000000000b2585a05fdeb8379@google.com>

David Howells <dhowells@xxxxxxxxxx> wrote:

> @@ -83,26 +83,14 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,

Actually, this patch definitely won't fix this bug since the test is using an
skcipher not a hash.

David

References:
- Re: [syzbot] [crypto?] KASAN: slab-out-of-bounds Read in extract_iter_to_sg
  - From: David Howells
- [syzbot] [crypto?] KASAN: slab-out-of-bounds Read in extract_iter_to_sg
  - From: syzbot

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