Re: [PATCH net-next] net: skbuff: replace ubuf_info ops ptr with type id

From
patchwork-bot+netdevbpf@kernel.org
Date
2026-11-06 22:50:20
Reply to
Willem de Bruijn, 2026-11-03
Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski [off-list ref]:

On Tue,  3 Nov 2026 14:46:20 -0500 you wrote:
From: Willem de Bruijn <willemb@google.com>

Avoid an easily corruptible callback pointer on skb linear
out-of-bounds write bugs.

skb_shinfo(skb)->destructor_arg points to a struct ubuf_info, whose
first member is a ubuf_info_ops vtable pointer. Corrupting
skb_shared_info gives a trivial one-hop indirect call primitive via
uarg->ops->complete.

[...]
Here is the summary with links:
  - [net-next] net: skbuff: replace ubuf_info ops ptr with type id
    https://git.kernel.org/netdev/net-next/c/ecca9bb2c855

You are awesome, thank you!
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Thread (4 messages) 4 messages, 3 authors, last reply 3d ago
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