linux-kernel - Re: [PATCH] net: wireless: nl80211: fix out-of-bounds access in nl80211_del

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Message-Id: <160218720521.8125.768342314968863398.git-patchwork-notify@kernel.org>
Date:   Thu, 08 Oct 2020 20:00:05 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Anant Thazhemadam <anant.thazhemadam@...il.com>
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org,
        syzbot+b1bb342d1d097516cbda@...kaller.appspotmail.com,
        johannes@...solutions.net, davem@...emloft.net, kuba@...nel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: wireless: nl80211: fix out-of-bounds access in
 nl80211_del_key()

Hello:

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

On Wed,  7 Oct 2020 09:24:01 +0530 you wrote:
> In nl80211_parse_key(), key.idx is first initialized as -1.
> If this value of key.idx remains unmodified and gets returned, and
> nl80211_key_allowed() also returns 0, then rdev_del_key() gets called
> with key.idx = -1.
> This causes an out-of-bounds array access.
> 
> Handle this issue by checking if the value of key.idx after
> nl80211_parse_key() is called and return -EINVAL if key.idx < 0.
> 
> [...]

Here is the summary with links:
  - net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()
    https://git.kernel.org/netdev/net/c/3dc289f8f139

You are awesome, thank you!
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