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: Thu, 02 Nov 2023 05:51:27 +0000
To: Willem de Bruijn <>
Subject: Re: [PATCH net v2] llc: verify mac len before reading mac header


This patch was applied to netdev/net.git (main)
by Jakub Kicinski <>:

On Wed, 25 Oct 2023 19:42:38 -0400 you wrote:
> From: Willem de Bruijn <>
> LLC reads the mac header with eth_hdr without verifying that the skb
> has an Ethernet header.
> Syzbot was able to enter llc_rcv on a tun device. Tun can insert
> packets without mac len and with user configurable skb->protocol
> (passing a tun_pi header when not configuring IFF_NO_PI).
> [...]

Here is the summary with links:
  - [net,v2] llc: verify mac len before reading mac header

You are awesome, thank you!
Deet-doot-dot, I am a bot.

Powered by blists - more mailing lists