netdev - Re: [PATCH v1 net] arp: Prevent overflow in arp_req

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: Tue, 20 Feb 2024 10:00:26 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, kuni1840@...il.com, netdev@...r.kernel.org,
 syzkaller@...glegroups.com, doebel@...zon.de
Subject: Re: [PATCH v1 net] arp: Prevent overflow in arp_req_get().

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Thu, 15 Feb 2024 15:05:16 -0800 you wrote:
> syzkaller reported an overflown write in arp_req_get(). [0]
> 
> When ioctl(SIOCGARP) is issued, arp_req_get() looks up an neighbour
> entry and copies neigh->ha to struct arpreq.arp_ha.sa_data.
> 
> The arp_ha here is struct sockaddr, not struct sockaddr_storage, so
> the sa_data buffer is just 14 bytes.
> 
> [...]

Here is the summary with links:
  - [v1,net] arp: Prevent overflow in arp_req_get().
    https://git.kernel.org/netdev/net/c/a7d6027790ac

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