netdev - Re: [PATCH] bpf: Fix mismatched RCU unlock flavour in bpf_out_neigh

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]

Message-Id: 
 <173109903053.2761247.7607713213065389742.git-patchwork-notify@kernel.org>
Date: Fri, 08 Nov 2024 20:50:30 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jiawei Ye <jiawei.ye@...mail.com>
Cc: martin.lau@...ux.dev, daniel@...earbox.net, edumazet@...gle.com,
 kuba@...nel.org, bpf@...r.kernel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bpf: Fix mismatched RCU unlock flavour in bpf_out_neigh_v6

Hello:

This patch was applied to bpf/bpf.git (master)
by Martin KaFai Lau <martin.lau@...nel.org>:

On Fri,  8 Nov 2024 08:18:52 +0000 you wrote:
> In the bpf_out_neigh_v6 function, rcu_read_lock() is used to begin an RCU
> read-side critical section. However, when unlocking, one branch
> incorrectly uses a different RCU unlock flavour rcu_read_unlock_bh()
> instead of rcu_read_unlock(). This mismatch in RCU locking flavours can
> lead to unexpected behavior and potential concurrency issues.
> 
> This possible bug was identified using a static analysis tool developed
> by myself, specifically designed to detect RCU-related issues.
> 
> [...]

Here is the summary with links:
  - bpf: Fix mismatched RCU unlock flavour in bpf_out_neigh_v6
    https://git.kernel.org/bpf/bpf/c/fb86c42a2a5d

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