netdev - Re: null pointer dereference in interrupt after receiving an ip packet on veth from xsk from user space

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Message-ID: <95f50c03-ee78-4ac1-b1b8-d87b85149441@nop.hu>
Date: Mon, 20 Oct 2025 11:48:58 +0200
From: mc36 <csmate@....hu>
To: Jason Xing <kerneljasonxing@...il.com>
Cc: Jonathan Lemon <jonathan.lemon@...il.com>,
 Stanislav Fomichev <sdf@...ichev.me>,
 Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
 Magnus Karlsson <magnus.karlsson@...el.com>, Björn Töpel
 <bjorn@...nel.org>, 1118437@...s.debian.org, netdev@...r.kernel.org,
 bpf@...r.kernel.org
Subject: Re: null pointer dereference in interrupt after receiving an ip
 packet on veth from xsk from user space

hi,

On 10/20/25 11:18, mc36 wrote:
> so i managed to have the crash on 6.16.8, 6.16.9 and 6.17.2....
> 
> but 6.17.7 and below seems to be working just fine here....
> 

my fat fingers... 6.16.7 and below... :)

an other attachment with the versions that work and ones that crash....

br,

cs

Download attachment "zzz2.tar.gz" of type "application/gzip" (6685 bytes)