netdev - Re: [PATCH net-next] net: silence data-races on sk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Wed, 06 Nov 2019 21:35:56 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next] net: silence data-races on sk_backlog.tail

From: Eric Dumazet <edumazet@...gle.com>
Date: Wed,  6 Nov 2019 10:04:11 -0800

> sk->sk_backlog.tail might be read without holding the socket spinlock,
> we need to add proper READ_ONCE()/WRITE_ONCE() to silence the warnings.
> 
> KCSAN reported :
> 
> BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg
 ...
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks Eric.