netdev - Re: [PATCH net] rxrpc: bad unlock balance in rxrpc

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Message-Id: <20190204.191917.526156939380773170.davem@davemloft.net>
Date:   Mon, 04 Feb 2019 19:19:17 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        dhowells@...hat.com, syzkaller@...glegroups.com
Subject: Re: [PATCH net] rxrpc: bad unlock balance in rxrpc_recvmsg

From: Eric Dumazet <edumazet@...gle.com>
Date: Mon,  4 Feb 2019 08:36:06 -0800

> When either "goto wait_interrupted;" or "goto wait_error;"
> paths are taken, socket lock has already been released.
> 
> This patch fixes following syzbot splat :
 ...
> Fixes: 248f219cb8bc ("rxrpc: Rewrite the data and ack handling code")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: David Howells <dhowells@...hat.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

David H., please take a look at this.

I can apply it directly and queue it up for -stable, just let me
know.

Thanks.