netdev - Re: [PATCH v2] net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet

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 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:   Tue, 15 Dec 2020 03:10:48 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vasily Averin <vvs@...tuozzo.com>
Cc:     willemdebruijn.kernel@...il.com, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2] net: drop bogus skb with CHECKSUM_PARTIAL and offset
 beyond end of trimmed packet

Hello:

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

On Mon, 14 Dec 2020 22:07:39 +0300 you wrote:
> syzbot reproduces BUG_ON in skb_checksum_help():
> tun creates (bogus) skb with huge partial-checksummed area and
> small ip packet inside. Then ip_rcv trims the skb based on size
> of internal ip packet, after that csum offset points beyond of
> trimmed skb. Then checksum_tg() called via netfilter hook
> triggers BUG_ON:
> 
> [...]

Here is the summary with links:
  - [v2] net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet
    https://git.kernel.org/netdev/net-next/c/54970a2fbb67

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