Re: [PATCH net v7] net: use skb_header_pointer() for TCPv4 GSO frag_off check

[patchwork-bot+netdevbpf]

Hello:

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

On Fri, 27 Mar 2026 23:35:07 +0800 you wrote:
> Syzbot reported a KMSAN uninit-value warning in gso_features_check()
> called from netif_skb_features() [1].
> 
> gso_features_check() reads iph->frag_off to decide whether to clear
> mangleid_features. Accessing the IPv4 header via ip_hdr()/inner_ip_hdr()
> can rely on skb header offsets that are not always safe for direct
> dereference on packets injected from PF_PACKET paths.
> 
> [...]

Here is the summary with links:
  - [net,v7] net: use skb_header_pointer() for TCPv4 GSO frag_off check
    https://git.kernel.org/netdev/net/c/ddc748a391dd

You are awesome, thank you!
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