linux-kernel - Re: [PATCH] net:tipc: Fix a double free in tipc_sk_mcast

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:   Mon, 29 Mar 2021 23:30:08 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Lv Yunlong <lyl2019@...l.ustc.edu.cn>
Cc:     jmaloy@...hat.com, ying.xue@...driver.com, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org,
        tipc-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net:tipc: Fix a double free in tipc_sk_mcast_rcv

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Sun, 28 Mar 2021 00:30:29 -0700 you wrote:
> In the if(skb_peek(arrvq) == skb) branch, it calls __skb_dequeue(arrvq) to get
> the skb by skb = skb_peek(arrvq). Then __skb_dequeue() unlinks the skb from arrvq
> and returns the skb which equals to skb_peek(arrvq). After __skb_dequeue(arrvq)
> finished, the skb is freed by kfree_skb(__skb_dequeue(arrvq)) in the first time.
> 
> Unfortunately, the same skb is freed in the second time by kfree_skb(skb) after
> the branch completed.
> 
> [...]

Here is the summary with links:
  - net:tipc: Fix a double free in tipc_sk_mcast_rcv
    https://git.kernel.org/netdev/net/c/6bf24dc0cc0c

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