netdev - Re: [PATCH] net, hsr: reject HSR frame if skb can't hold tag

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Message-Id: 
 <175574401150.482952.15665339291483545385.git-patchwork-notify@kernel.org>
Date: Thu, 21 Aug 2025 02:40:11 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jakub Acs <acsjakub@...zon.de>
Cc: netdev@...r.kernel.org, aws-security@...zon.com, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, security@...nel.org, stable@...nel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net, hsr: reject HSR frame if skb can't hold tag

Hello:

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

On Tue, 19 Aug 2025 08:28:42 +0000 you wrote:
> Receiving HSR frame with insufficient space to hold HSR tag in the skb
> can result in a crash (kernel BUG):
> 
> [   45.390915] skbuff: skb_under_panic: text:ffffffff86f32cac len:26 put:14 head:ffff888042418000 data:ffff888042417ff4 tail:0xe end:0x180 dev:bridge_slave_1
> [   45.392559] ------------[ cut here ]------------
> [   45.392912] kernel BUG at net/core/skbuff.c:211!
> [   45.393276] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI
> [   45.393809] CPU: 1 UID: 0 PID: 2496 Comm: reproducer Not tainted 6.15.0 #12 PREEMPT(undef)
> [   45.394433] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
> [   45.395273] RIP: 0010:skb_panic+0x15b/0x1d0
> 
> [...]

Here is the summary with links:
  - net, hsr: reject HSR frame if skb can't hold tag
    https://git.kernel.org/netdev/net/c/7af76e9d18a9

You are awesome, thank you!
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