netdev - Re: [syzbot] [net?] KASAN: stack-out-of-bounds Read in skb_splice_from

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Message-ID: <920483.1686681922@warthog.procyon.org.uk>
Date: Tue, 13 Jun 2023 19:45:22 +0100
From: David Howells <dhowells@...hat.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: dhowells@...hat.com,
    syzbot <syzbot+d8486855ef44506fd675@...kaller.appspotmail.com>,
    bpf@...r.kernel.org, davem@...emloft.net, dsahern@...nel.org,
    edumazet@...gle.com, linux-kernel@...r.kernel.org,
    netdev@...r.kernel.org, pabeni@...hat.com,
    syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] KASAN: stack-out-of-bounds Read in skb_splice_from_iter

Jakub Kicinski <kuba@...nel.org> wrote:

> Hi David, are you fighting all these fires reported by syzbot?
> I see another one just rolled in from yesterdays KCM changes.

I'm trying to pin down a bug in the old DIO code whilst attending the AFS
Workshop.  I'll get to the sendpage reports in a bit.  I think a bunch of them
are probably the same issue in AF_ALG hashing.  They do at least have
reproducers.

David