netdev - Re: [PATCH v2 net-next] af_unix: Call scm_recv() only after scm_set

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

Date: Sat, 24 Jun 2023 22:20:20 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, brauner@...nel.org, alexander@...alicyn.com,
 kuni1840@...il.com, netdev@...r.kernel.org, syzkaller@...glegroups.com
Subject: Re: [PATCH v2 net-next] af_unix: Call scm_recv() only after
 scm_set_cred().

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 22 Jun 2023 11:43:51 -0700 you wrote:
> syzkaller hit a WARN_ON_ONCE(!scm->pid) in scm_pidfd_recv().
> 
> In unix_stream_read_generic(), if there is no skb in the queue, we could
> bail out the do-while loop without calling scm_set_cred():
> 
>   1. No skb in the queue
>   2. sk is non-blocking
>        or
>      shutdown(sk, RCV_SHUTDOWN) is called concurrently
>        or
>      peer calls close()
> 
> [...]

Here is the summary with links:
  - [v2,net-next] af_unix: Call scm_recv() only after scm_set_cred().
    https://git.kernel.org/netdev/net-next/c/3f5f118bb657

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html